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Posted to commits@ozone.apache.org by sz...@apache.org on 2021/10/01 08:19:00 UTC

[ozone] branch HDDS-4454 updated (c062de2 -> 420e472)

This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a change to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git.


 discard c062de2  HDDS-5486. [Ozone-Streaming] Streaming supports writing in Pipline mode (#2682)
    omit 6a2233d  HDDS-5742. Avoid unnecessary Bytebuffer conversions (#2673)
    omit e04c27d  Revert "HDDS-5742. [Ozone-Streaming] Avoid unnecessary Bytebuffer conversions (#2640)" (#2643)
    omit fe15324  HDDS-5742. [Ozone-Streaming] Avoid unnecessary Bytebuffer conversions (#2640)
    omit 4156bf7  HDDS-5705. [Ozone-Streaming] Change ByteBufStreamOutput to ByteBufferStreamOutput (#2603)
    omit 9cf9c4d  HDDS-5599.  [Ozone-Streaming]drop BufferPool and ChunkBuffer to avoid buffer copying (#2557)
    omit 04b4c17  HDDS-5488. [Ozone-Streaming] Add a new BlockOutputStream/KeyOutputStream to support streaming api (#2495)
    omit 2ef30bb  HDDS-5480. [Ozone-Streaming] Client and server should support stream setup. (#2452)
    omit 1924810  HDDS-5481. Fix stream() and link() method in ContainerStateMachine. (#2451)
    omit ecff9ab  HDDS-5452. Add link method to ContainerStateMachine for Ratis streaming (#2422)
    omit f89e1f5  HDDS-5366.  [Ozone-Streaming] Implement stream method to ContainerStateMachine. (#2358).  Contributed by mingchao zhao
     add bbd0907  HDDS-5678. Handle unsecure SCM HA converted to secure SCM HA. (#2596)
     add 0decca8  HDDS-5716. Fix create key failure error log print (#2614)
     add 737297e  HDDS-5719. Reduce number of mini-clusters needed for decommission tests (#2617)
     add 2d188cc  HDDS-5726. Skip remove for already removed pipeline. (#2624)
     add b64080b  HDDS-5638. Fix docker-compose to make Recon come up. (#2563)
     add e9cce6e  HDDS-5670. ContainerBalancer should get OzoneConfiguration from ContainerBalancerConfiguration. (#2577)
     add ebbcf0a  HDDS-5711. support -1 for running balancer infinitely (#2621)
     add 6239270  HDDS-5724. Add RaftpeerId when getting scm roles (#2622)
     add 2b6e1ac  HDDS-5718. Refactor TestXceiverClientManager to reuse mini-clusters (#2616)
     add ee993d0  HDDS-5723. Increase time limit of Ozone acceptance tests. (#2620)
     add e392c1a  HDDS-5699. Added Log to show why a container was marked UNHEALTHY. (#2627)
     add 753a5b7  HDDS-5715. Make XceiverServerRatis#raftGids a thread-safe set. (#2613)
     add 6569040  HDDS-5502. [OFS] URI parser throws URISyntaxException when path contains space (#2500)
     add bb37a55  HDDS-5735. Prometheus HTTP API Reference cannot be displayed normally (#2630)
     add 67be640  HDDS-5496. Missing directory name in `start_k8s_env` log (#2545)
     add 9aebf6e  HDDS-5720. Reuse mini-clusters in TestOzoneFileInterfaces (#2619)
     add e97ea36  HDDS-5679. Use more defensive sizeRequired for replication manager for container replication. (#2585)
     add 2d57e9f  HDDS-5708. Skip sending container close command to unhealthy replica. (#2610)
     add 873c0d2  HDDS-5696. Close grpcReplicationClient on exception. (#2595)
     add 6543c67  HDDS-5729. support setting maxSizeEnteringTarget and maxSizeLeavingSource in command line (#2626)
     add ec5c51f  HDDS-5335. Method not found: allocateBlock - when tracing is enabled (#2330)
     add c5a012b  HDDS-5744. Remove unnecessary duplicate semicolon in PipelineStateMap (#2641)
     add ee19b95  HDDS-5748. Reuse mini-clusters in TestOzoneFSWithObjectStoreCreate (#2646)
     add da18617  HDDS-5717. Refactor TestOzoneManagerListVolumes to reuse mini-ozone clusters (#2615)
     add ed30752  HDDS-5749. Reuse mini-clusters in TestOzoneFsHAURLs (#2647)
     add d716bf4  HDDS-5402 Support list node based on NodeOperationalState and NodeState options in printTopology CLI (#2645)
     add fab8a12  HDDS-5728. ContainerBalancer should use remaining space to calculate utilization. (#2625)
     add f2c20ce  HDDS-5751. Use Mini Cluster Provider to speed up TestHDDSUpgrade (#2650)
     add 5c972c4  HDDS-5753. Split parts of misc suite (#2654)
     add 0b9e23e  HDDS-5607. remove container manager v1 code (#2525)
     add 2d58933  HDDS-5758. Speed up TestKeyInputStream and TestChunkInputStream by combining some tests (#2656)
     add c68468c  HDDS-5761. should not shutdown om when setting a bigger bucket quota  than volume quota (#2659)
     add 79da6b7  HDDS-5766. Speed up some OM tests by skipping SCM safemode check (#2662)
     add b8afbbc  HDDS-5768. Skip safemode check in TestOzoneManagerRocksDBLogging (#2665)
     add 79716f0  HDDS-5765. Test cluster provider possibly returns null (#2663)
     add 2c2d2f3  HDDS-5767. Unit check may timeout (#2664)
     add b508b25  HDDS-5771. Speed up TestDatanodeHddsVolumeFailureToleration by reducing dead interval (#2668)
     add fc61be5  HDDS-5691. Restrict Recon NSSummaryEndpoint and ContainerEndpoint to admins. (#2638)
     add 3116fa2  HDDS-5773. Avoid code duplication for mini cluster without datanodes (#2669)
     add c25b6d7  HDDS-5759. Bump aspectj version (#2658)
     add 87b4971  HDDS-5770. Silent failures of k3s install are difficult to debug (#2667)
     add 605a734  HDDS-5697. SCMContainerPlacementRackAware should both affinity nodes before fallback (#2597)
     add e5c647e  HDDS-5370. [FSO] Handle OMClientRequest based on the bucket layout. (#2533)
     add 181266b  HDDS-5777. Provide an option to dump table scan data to file. (#2675)
     add 4b3502f  HDDS-5792. Speed up TestNSSummaryAdmin by having zero Datanodes (#2688)
     add 2e3c46c  HDDS-5782. DatanodeRatisGrpcConfig use wrong type for config keys. (#2678)
     add 041684f  HDDS-5789. Enabling container tokens on a upgraded cluster fails SCM to start up. (#2691)
     add af7dc7e  HDDS-5800. Bucket usedByte was incorrect when deleting duplicate keys.
     add 8cc6719  HDDS-5523. Fix multipart upload failure in s3 compatibility tests (#2509)
     add aa9eade  HDDS-5757. balancer should stop when the cluster can not be balanced any more (#2676)
     add e2c3ac3  HDDS-5747. Reset default values in ContainerBalancerConfiguration (#2657)
     new 225a802  HDDS-5366.  [Ozone-Streaming] Implement stream method to ContainerStateMachine. (#2358).  Contributed by mingchao zhao
     new fac149d  HDDS-5452. Add link method to ContainerStateMachine for Ratis streaming (#2422)
     new 2cd909d  HDDS-5481. Fix stream() and link() method in ContainerStateMachine. (#2451)
     new 8df196a  HDDS-5480. [Ozone-Streaming] Client and server should support stream setup. (#2452)
     new b5bd217  HDDS-5488. [Ozone-Streaming] Add a new BlockOutputStream/KeyOutputStream to support streaming api (#2495)
     new 69464ce  HDDS-5599.  [Ozone-Streaming]drop BufferPool and ChunkBuffer to avoid buffer copying (#2557)
     new e064c4b  HDDS-5705. [Ozone-Streaming] Change ByteBufStreamOutput to ByteBufferStreamOutput (#2603)
     new e29e77f  HDDS-5742. Avoid unnecessary Bytebuffer conversions (#2673)
     new 420e472  HDDS-5486. [Ozone-Streaming] Streaming supports writing in Pipline mode (#2682)

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Summary of changes:
 .github/workflows/post-commit.yml                  |   6 +-
 .../apache/hadoop/hdds/recon/ReconConfigKeys.java  |  10 +
 .../apache/hadoop/hdds/scm/client/ScmClient.java   |   4 +-
 .../hadoop/hdds/scm/net/NetworkTopology.java       |   3 +-
 .../hadoop/hdds/scm/net/NetworkTopologyImpl.java   |   5 +-
 .../protocol/StorageContainerLocationProtocol.java |   4 +-
 .../apache/hadoop/hdds/tracing/TraceAllMethod.java |  23 +-
 .../apache/hadoop/hdds/tracing/TracingUtil.java    |   6 +-
 .../common/src/main/resources/ozone-default.xml    |  11 +
 .../hadoop/hdds/tracing/TestTraceAllMethod.java    |  68 +++
 .../hadoop/hdds/tracing/TestTracingUtil.java}      |  33 +-
 .../ozone/container/common/impl/ContainerSet.java  |   3 +
 .../container/common/impl/HddsDispatcher.java      |   1 +
 .../CloseContainerCommandHandler.java              |   2 +
 .../ClosePipelineCommandHandler.java               |  13 +-
 .../transport/server/ratis/XceiverServerRatis.java |   3 +-
 .../container/keyvalue/KeyValueContainerCheck.java |   2 +
 .../replication/SimpleContainerDownloader.java     |  20 +-
 hadoop-hdds/docs/content/interface/ReconApi.md     |  23 +-
 hadoop-hdds/docs/content/interface/ReconApi.zh.md  |   2 +-
 .../hadoop/hdds/conf/DatanodeRatisGrpcConfig.java  |   4 +-
 ...inerLocationProtocolClientSideTranslatorPB.java |  19 +-
 .../certificate/client/DNCertificateClient.java    |   5 -
 .../client/DefaultCertificateClient.java           |   2 +-
 .../certificate/client/OMCertificateClient.java    |   5 -
 .../certificate/client/SCMCertificateClient.java   |  10 +-
 .../src/main/proto/ScmAdminProtocol.proto          |   2 +
 .../hadoop/hdds/scm/block/DeletedBlockLogImpl.java |   6 +-
 .../scm/block/DeletedBlockLogStateManagerImpl.java |  12 +-
 .../hdds/scm/block/SCMBlockDeletingService.java    |   9 +-
 .../container/AbstractContainerReportHandler.java  |   6 +-
 .../scm/container/CloseContainerEventHandler.java  |   4 +-
 .../hdds/scm/container/ContainerManager.java       | 144 ++---
 .../hdds/scm/container/ContainerManagerImpl.java   |   6 +-
 .../hdds/scm/container/ContainerManagerV2.java     | 190 ------
 .../hdds/scm/container/ContainerReportHandler.java |   6 +-
 .../IncrementalContainerReportHandler.java         |   2 +-
 .../hdds/scm/container/ReplicationManager.java     |  31 +-
 .../hdds/scm/container/SCMContainerManager.java    | 672 ---------------------
 .../scm/container/balancer/ContainerBalancer.java  |  86 ++-
 .../balancer/ContainerBalancerConfiguration.java   |  56 +-
 .../ContainerBalancerSelectionCriteria.java        |  14 +-
 .../scm/container/balancer/FindTargetGreedy.java   |   6 +-
 .../algorithms/SCMContainerPlacementRackAware.java |  72 ++-
 .../container/placement/metrics/SCMNodeStat.java   |  23 -
 .../hadoop/hdds/scm/ha/SCMRatisServerImpl.java     |   3 +-
 .../hadoop/hdds/scm/node/DatanodeUsageInfo.java    |  65 +-
 .../hadoop/hdds/scm/node/DeadNodeHandler.java      |   6 +-
 .../hdds/scm/node/NodeDecommissionManager.java     |   8 +-
 .../apache/hadoop/hdds/scm/node/NodeManager.java   |   8 +
 .../hadoop/hdds/scm/node/SCMNodeManager.java       |  60 +-
 .../hadoop/hdds/scm/pipeline/PipelineStateMap.java |   2 +-
 .../hdds/scm/pipeline/RatisPipelineUtils.java      |  18 -
 .../pipeline/WritableRatisContainerProvider.java   |   6 +-
 ...inerLocationProtocolServerSideTranslatorPB.java |  15 +-
 .../hdds/scm/safemode/ContainerSafeModeRule.java   |  10 +-
 .../hdds/scm/safemode/SCMSafeModeManager.java      |  10 +-
 .../scm/server/OzoneStorageContainerManager.java   |   4 +-
 .../hdds/scm/server/SCMClientProtocolServer.java   |  23 +-
 .../hadoop/hdds/scm/server/SCMConfigurator.java    |   8 +-
 .../hdds/scm/server/StorageContainerManager.java   |  73 ++-
 .../java/org/apache/hadoop/hdds/scm/TestUtils.java |  12 +-
 .../hadoop/hdds/scm/block/TestBlockManager.java    |   6 +-
 .../hadoop/hdds/scm/block/TestDeletedBlockLog.java |   6 +-
 .../hadoop/hdds/scm/container/MockNodeManager.java |  16 +-
 .../hdds/scm/container/SimpleMockNodeManager.java  |   5 +
 .../container/TestCloseContainerEventHandler.java  |   2 +-
 .../scm/container/TestContainerManagerImpl.java    |   2 +-
 .../scm/container/TestContainerReportHandler.java  |   4 +-
 .../TestIncrementalContainerReportHandler.java     |   4 +-
 .../hdds/scm/container/TestReplicationManager.java |  33 +-
 .../scm/container/TestSCMContainerManager.java     | 324 ----------
 .../scm/container/TestUnknownContainerReport.java  |   4 +-
 .../container/balancer/TestContainerBalancer.java  |  64 +-
 .../TestSCMContainerPlacementRackAware.java        |  15 +
 .../hdds/scm/node/TestContainerPlacement.java      |  95 +--
 .../hadoop/hdds/scm/node/TestDeadNodeHandler.java  |   8 +-
 .../testutils/ReplicationNodeManagerMock.java      |  11 +
 .../scm/cli/ContainerBalancerStartSubcommand.java  |  13 +-
 .../hdds/scm/cli/ContainerOperationClient.java     |   7 +-
 .../hadoop/hdds/scm/cli/TopologySubcommand.java    |  46 +-
 .../datanode/TestContainerBalancerSubCommand.java  |   6 +-
 .../main/java/org/apache/hadoop/ozone/OFSPath.java |  45 +-
 hadoop-ozone/dev-support/checks/_lib.sh            |   8 +-
 .../dist/src/main/compose/ozone-ha/test.sh         |   2 +
 .../src/main/compose/ozone-mr/hadoop27/test.sh     |   2 +
 .../src/main/compose/ozone-mr/hadoop31/test.sh     |   2 +
 .../src/main/compose/ozone-mr/hadoop32/test.sh     |   2 +
 .../src/main/compose/ozone-mr/hadoop33/test.sh     |   2 +
 .../dist/src/main/compose/ozone-mr/test.sh         |   3 +
 .../compose/ozonesecure-ha/docker-compose.yaml     |   2 +
 .../dist/src/main/compose/ozonesecure-ha/test.sh   |   2 +
 .../dist/src/main/compose/ozonesecure-mr/test.sh   |   2 +
 .../src/main/compose/ozonesecure/docker-config     |   1 +
 hadoop-ozone/dist/src/main/k8s/examples/testlib.sh |   2 +-
 .../dist/src/main/smoketest/recon/recon-api.robot  |  53 +-
 .../src/main/smoketest/s3/MultipartUpload.robot    |  23 +-
 .../dist/src/main/smoketest/topology/cli.robot     |   6 +
 .../fs/ozone/TestOzoneFSWithObjectStoreCreate.java |  30 +-
 .../hadoop/fs/ozone/TestOzoneFileInterfaces.java   |  69 ++-
 .../fs/ozone/TestOzoneFileInterfacesWithFSO.java   |   8 +-
 .../apache/hadoop/fs/ozone/TestOzoneFsHAURLs.java  |  35 +-
 .../hadoop/hdds/scm/TestSCMInstallSnapshot.java    |   4 +-
 .../apache/hadoop/hdds/scm/TestSCMSnapshot.java    |   4 +-
 .../TestContainerStateManagerIntegration.java      | 140 ++---
 .../metrics/TestSCMContainerManagerMetrics.java    |   4 +-
 .../hdds/scm/pipeline/TestNode2PipelineMap.java    |   4 +-
 .../hdds/scm/pipeline/TestPipelineClose.java       |   4 +-
 .../hadoop/hdds/scm/pipeline/TestSCMRestart.java   |   6 +-
 .../hadoop/hdds/upgrade/TestHDDSUpgrade.java       |  41 +-
 .../org/apache/hadoop/ozone/MiniOzoneCluster.java  |  12 +
 .../hadoop/ozone/MiniOzoneClusterProvider.java     |   3 +
 .../ozone/TestContainerBalancerOperations.java     |   8 +-
 .../client/rpc/TestOzoneRpcClientAbstract.java     |  26 +
 .../client/rpc/read/TestChunkInputStream.java      |  13 +-
 .../ozone/client/rpc/read/TestInputStreamBase.java |  44 --
 .../ozone/client/rpc/read/TestKeyInputStream.java  |  58 +-
 .../apache/hadoop/ozone/container/TestHelper.java  |   4 +-
 .../hadoop/ozone/dn/scrubber/TestDataScrubber.java |   4 +-
 .../TestDatanodeHddsVolumeFailureToleration.java   |  40 +-
 .../org/apache/hadoop/ozone/om/TestOmLDBCli.java   |  64 +-
 .../org/apache/hadoop/ozone/om/TestOmMetrics.java  |  28 +-
 .../ozone/om/TestOzoneManagerConfiguration.java    |   2 +-
 .../apache/hadoop/ozone/om/TestOzoneManagerHA.java |  29 +-
 .../ozone/om/TestOzoneManagerHAMetadataOnly.java   |  17 +
 .../ozone/om/TestOzoneManagerListVolumes.java      | 117 ++--
 .../ozone/om/TestOzoneManagerRocksDBLogging.java   |   2 +-
 .../apache/hadoop/ozone/om/TestScmSafeMode.java    |   7 +-
 .../om/ratis/TestOzoneManagerRatisRequest.java     |  71 +++
 .../hadoop/ozone/recon/TestReconAsPassiveScm.java  |  10 +-
 .../apache/hadoop/ozone/recon/TestReconTasks.java  |   4 +-
 .../org/apache/hadoop/ozone/scm/TestSCMMXBean.java |   4 +-
 .../hadoop/ozone/scm/TestXceiverClientManager.java |  18 +-
 .../scm/node/TestDecommissionAndMaintenance.java   |  94 +--
 .../hadoop/ozone/shell/TestNSSummaryAdmin.java     |   3 +-
 hadoop-ozone/ozone-manager/pom.xml                 |  10 +-
 .../hadoop/ozone/om/DirectoryDeletingService.java  |  21 +-
 .../org/apache/hadoop/ozone/om/KeyManagerImpl.java |  47 +-
 .../hadoop/ozone/om/OmMetadataManagerImpl.java     |   4 +
 .../org/apache/hadoop/ozone/om/OzoneManager.java   |  26 +-
 .../hadoop/ozone/om/TrashOzoneFileSystem.java      |   2 +-
 .../om/ratis/utils/OzoneManagerRatisUtils.java     | 130 +++-
 .../request/bucket/OMBucketSetPropertyRequest.java |   9 +-
 .../request/file/OMFileCreateRequestWithFSO.java   |   2 +-
 .../ozone/om/request/key/OMKeyCreateRequest.java   |   4 +-
 .../ozone/om/request/key/OMKeyDeleteRequest.java   |  58 +-
 .../hadoop/ozone/om/request/key/OMKeyRequest.java  |  15 +-
 .../ozone/om/request/key/acl/OMKeyAclRequest.java  |  38 ++
 .../om/request/volume/OMVolumeSetQuotaRequest.java |   5 +-
 ...OzoneManagerProtocolServerSideTranslatorPB.java |   8 +-
 .../protocolPB/OzoneManagerRequestHandler.java     |  12 +-
 .../ozone/om/request/TestOMRequestUtils.java       |  22 +-
 .../bucket/TestOMBucketSetPropertyRequest.java     |  30 +-
 .../om/request/key/TestOMKeyAclRequestWithFSO.java |   2 +-
 .../request/key/TestOMKeyCreateRequestWithFSO.java |   2 -
 .../om/request/key/TestOMKeyDeleteRequest.java     |  13 +-
 .../request/key/TestOMKeyDeleteRequestWithFSO.java |  10 +-
 .../ozone/om/request/key/TestOMKeyRequest.java     |   7 +-
 .../volume/TestOMVolumeSetQuotaRequest.java        |  28 +-
 .../org/apache/hadoop/fs/ozone/TestOFSPath.java    |  26 +
 .../apache/hadoop/ozone/recon/ReconHttpServer.java |   1 +
 .../hadoop/ozone/recon/ReconRestServletModule.java | 144 +++--
 .../org/apache/hadoop/ozone/recon/ReconServer.java |  26 +-
 .../apache/hadoop/ozone/recon/api/AdminOnly.java   |  23 +-
 .../hadoop/ozone/recon/api/ContainerEndpoint.java  |   1 +
 .../hadoop/ozone/recon/api/NSSummaryEndpoint.java  |   5 +-
 .../ozone/recon/api/filters/ReconAdminFilter.java  | 113 ++++
 .../ozone/recon/api/filters/ReconAuthFilter.java   | 117 ++++
 .../recon/api/{ => filters}/package-info.java      |   5 +-
 .../ozone/recon/fsck/ContainerHealthTask.java      |   6 +-
 .../recon/scm/ReconContainerReportHandler.java     |   4 +-
 .../ozone/recon/scm/ReconDeadNodeHandler.java      |   4 +-
 .../ReconIncrementalContainerReportHandler.java    |   4 +-
 .../scm/ReconStorageContainerManagerFacade.java    |   4 +-
 .../ozone/recon/api/TestNSSummaryEndpoint.java     |  12 +-
 .../ozone/recon/api/filters/TestAdminFilter.java   | 161 +++++
 .../ozone/recon/fsck/TestContainerHealthTask.java  |   6 +-
 .../hadoop/ozone/s3/endpoint/ObjectEndpoint.java   |  39 +-
 .../s3/endpoint/TestMultipartUploadWithCopy.java   | 219 +++++--
 .../admin/scm/GetScmRatisRolesSubcommand.java      |   7 +-
 .../org/apache/hadoop/ozone/debug/DBScanner.java   |  74 ++-
 pom.xml                                            |   3 +
 182 files changed, 2926 insertions(+), 2407 deletions(-)
 create mode 100644 hadoop-hdds/common/src/test/java/org/apache/hadoop/hdds/tracing/TestTraceAllMethod.java
 copy hadoop-hdds/{framework/src/test/java/org/apache/hadoop/hdds/server/http/TestHttpRequestLogAppender.java => common/src/test/java/org/apache/hadoop/hdds/tracing/TestTracingUtil.java} (50%)
 delete mode 100644 hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/ContainerManagerV2.java
 delete mode 100644 hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/SCMContainerManager.java
 delete mode 100644 hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/TestSCMContainerManager.java
 create mode 100644 hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
 copy hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/audit/AuditAction.java => hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/AdminOnly.java (61%)
 create mode 100644 hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/filters/ReconAdminFilter.java
 create mode 100644 hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/filters/ReconAuthFilter.java
 copy hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/{ => filters}/package-info.java (87%)
 create mode 100644 hadoop-ozone/recon/src/test/java/org/apache/hadoop/ozone/recon/api/filters/TestAdminFilter.java

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[ozone] 08/09: HDDS-5742. Avoid unnecessary Bytebuffer conversions (#2673)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit e29e77f898d28aa4c6dfa2493010b09cd9e923bd
Author: micah zhao <mi...@tencent.com>
AuthorDate: Thu Sep 23 11:26:43 2021 +0800

    HDDS-5742. Avoid unnecessary Bytebuffer conversions (#2673)
---
 .../org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java    | 3 +--
 .../src/main/java/org/apache/hadoop/ozone/common/Checksum.java       | 5 +++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
index d0419fa..c69af90 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
@@ -485,8 +485,7 @@ public class BlockDataStreamOutput implements ByteBufferStreamOutput {
       throws IOException {
     final int effectiveChunkSize = buf.remaining();
     final long offset = chunkOffset.getAndAdd(effectiveChunkSize);
-    ChecksumData checksumData =
-        checksum.computeChecksum(buf.asReadOnlyBuffer());
+    ChecksumData checksumData = checksum.computeChecksum(buf);
     ChunkInfo chunkInfo = ChunkInfo.newBuilder()
         .setChunkName(blockID.get().getLocalID() + "_chunk_" + ++chunkIndex)
         .setOffset(offset)
diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/common/Checksum.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/common/Checksum.java
index 76f84c4..d300b9e 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/common/Checksum.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/common/Checksum.java
@@ -139,6 +139,11 @@ public class Checksum {
    */
   public ChecksumData computeChecksum(ByteBuffer data)
       throws OzoneChecksumException {
+    // If type is set to NONE, we do not need to compute the checksums. We also
+    // need to avoid unnecessary conversions.
+    if (checksumType == ChecksumType.NONE) {
+      return new ChecksumData(checksumType, bytesPerChecksum);
+    }
     if (!data.isReadOnly()) {
       data = data.asReadOnlyBuffer();
     }

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[ozone] 09/09: HDDS-5486. [Ozone-Streaming] Streaming supports writing in Pipline mode (#2682)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit 420e4729f8ed9b60b0d7dccb61c3d52019c39e16
Author: micah zhao <mi...@tencent.com>
AuthorDate: Thu Sep 30 11:21:47 2021 +0800

    HDDS-5486. [Ozone-Streaming] Streaming supports writing in Pipline mode (#2682)
---
 .../hdds/scm/storage/BlockDataStreamOutput.java    | 40 ++++++++++++++++++++--
 1 file changed, 37 insertions(+), 3 deletions(-)

diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
index c69af90..41e2c48 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
@@ -41,6 +41,8 @@ import org.apache.hadoop.security.token.TokenIdentifier;
 import org.apache.ratis.client.api.DataStreamOutput;
 import org.apache.ratis.io.StandardWriteOption;
 import org.apache.ratis.protocol.DataStreamReply;
+import org.apache.ratis.protocol.RaftPeerId;
+import org.apache.ratis.protocol.RoutingTable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -144,7 +146,7 @@ public class BlockDataStreamOutput implements ByteBufferStreamOutput {
     this.xceiverClient =
         (XceiverClientRatis)xceiverClientManager.acquireClient(pipeline);
     // Alternatively, stream setup can be delayed till the first chunk write.
-    this.out = setupStream();
+    this.out = setupStream(pipeline);
     this.token = token;
 
     flushPeriod = (int) (config.getStreamBufferFlushSize() / config
@@ -166,7 +168,7 @@ public class BlockDataStreamOutput implements ByteBufferStreamOutput {
         config.getBytesPerChecksum());
   }
 
-  private DataStreamOutput setupStream() throws IOException {
+  private DataStreamOutput setupStream(Pipeline pipeline) throws IOException {
     // Execute a dummy WriteChunk request to get the path of the target file,
     // but does NOT write any data to it.
     ContainerProtos.WriteChunkRequestProto.Builder writeChunkRequest =
@@ -184,7 +186,39 @@ public class BlockDataStreamOutput implements ByteBufferStreamOutput {
         ContainerCommandRequestMessage.toMessage(builder.build(), null);
 
     return Preconditions.checkNotNull(xceiverClient.getDataStreamApi())
-        .stream(message.getContent().asReadOnlyByteBuffer());
+    .stream(message.getContent().asReadOnlyByteBuffer(),
+        getRoutingTable(pipeline));
+  }
+
+  public RoutingTable getRoutingTable(Pipeline pipeline) {
+    RaftPeerId primaryId = null;
+    List<RaftPeerId> raftPeers = new ArrayList<>();
+
+    for (DatanodeDetails dn : pipeline.getNodes()) {
+      final RaftPeerId raftPeerId = RaftPeerId.valueOf(dn.getUuidString());
+      try {
+        if (dn == pipeline.getFirstNode()) {
+          primaryId = raftPeerId;
+        }
+      } catch (IOException e) {
+        LOG.error("Can not get FirstNode from the pipeline: {} with " +
+            "exception: {}", pipeline.toString(), e.getLocalizedMessage());
+        return null;
+      }
+      raftPeers.add(raftPeerId);
+    }
+
+    RoutingTable.Builder builder = RoutingTable.newBuilder();
+    RaftPeerId previousId = primaryId;
+    for (RaftPeerId peerId : raftPeers) {
+      if (peerId.equals(primaryId)) {
+        continue;
+      }
+      builder.addSuccessor(previousId, peerId);
+      previousId = peerId;
+    }
+
+    return builder.build();
   }
 
   public BlockID getBlockID() {

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[ozone] 07/09: HDDS-5705. [Ozone-Streaming] Change ByteBufStreamOutput to ByteBufferStreamOutput (#2603)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit e064c4b5773d17af2299a78c7ba9727dcc5bd299
Author: Kaijie Chen <ch...@kaijie.org>
AuthorDate: Wed Sep 8 09:25:17 2021 +0800

    HDDS-5705. [Ozone-Streaming] Change ByteBufStreamOutput to ByteBufferStreamOutput (#2603)
---
 hadoop-hdds/client/pom.xml                         |  4 --
 .../hdds/scm/storage/BlockDataStreamOutput.java    | 26 +++++----
 ...reamOutput.java => ByteBufferStreamOutput.java} | 15 +++--
 .../client/io/BlockDataStreamOutputEntry.java      | 51 ++++++++---------
 .../ozone/client/io/KeyDataStreamOutput.java       | 15 +++--
 .../ozone/client/io/OzoneDataStreamOutput.java     | 30 +++++-----
 .../client/rpc/TestBlockDataStreamOutput.java      | 66 +++++++++-------------
 .../hadoop/ozone/shell/keys/PutKeyHandler.java     |  8 +--
 8 files changed, 98 insertions(+), 117 deletions(-)

diff --git a/hadoop-hdds/client/pom.xml b/hadoop-hdds/client/pom.xml
index 482c067..4e75e42 100644
--- a/hadoop-hdds/client/pom.xml
+++ b/hadoop-hdds/client/pom.xml
@@ -66,10 +66,6 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <version>${spotbugs.version}</version>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>io.netty</groupId>
-      <artifactId>netty-buffer</artifactId>
-    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
index 39ec2f9..d0419fa 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hdds.scm.storage;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
-import io.netty.buffer.ByteBuf;
 import org.apache.hadoop.hdds.client.BlockID;
 import org.apache.hadoop.hdds.protocol.DatanodeDetails;
 import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos;
@@ -46,6 +45,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
@@ -59,7 +59,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import static org.apache.hadoop.hdds.scm.storage.ContainerProtocolCalls.putBlockAsync;
 
 /**
- * An {@link ByteBufStreamOutput} used by the REST service in combination
+ * An {@link ByteBufferStreamOutput} used by the REST service in combination
  * with the SCMClient to write the value of a key to a sequence
  * of container chunks.  Writes are buffered locally and periodically written to
  * the container as a new chunk.  In order to preserve the semantics that
@@ -74,7 +74,7 @@ import static org.apache.hadoop.hdds.scm.storage.ContainerProtocolCalls.putBlock
  * This class encapsulates all state management for buffering and writing
  * through to the container.
  */
-public class BlockDataStreamOutput implements ByteBufStreamOutput {
+public class BlockDataStreamOutput implements ByteBufferStreamOutput {
   public static final Logger LOG =
       LoggerFactory.getLogger(BlockDataStreamOutput.class);
   public static final String EXCEPTION_MSG =
@@ -209,16 +209,16 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
   }
 
   @Override
-  public void write(ByteBuf buf) throws IOException {
+  public void write(ByteBuffer b, int off, int len) throws IOException {
     checkOpen();
-    if (buf == null) {
+    if (b == null) {
       throw new NullPointerException();
     }
-    final int len = buf.readableBytes();
     if (len == 0) {
       return;
     }
-    writeChunkToContainer(buf);
+    writeChunkToContainer(
+            (ByteBuffer) b.asReadOnlyBuffer().position(off).limit(off + len));
 
     writtenDataLength += len;
   }
@@ -476,15 +476,17 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
    * Writes buffered data as a new chunk to the container and saves chunk
    * information to be used later in putKey call.
    *
+   * @param buf chunk data to write, from position to limit
    * @throws IOException if there is an I/O error while performing the call
    * @throws OzoneChecksumException if there is an error while computing
    * checksum
    */
-  private void writeChunkToContainer(ByteBuf buf)
+  private void writeChunkToContainer(ByteBuffer buf)
       throws IOException {
-    ChecksumData checksumData = checksum.computeChecksum(buf.nioBuffer());
-    int effectiveChunkSize = buf.readableBytes();
+    final int effectiveChunkSize = buf.remaining();
     final long offset = chunkOffset.getAndAdd(effectiveChunkSize);
+    ChecksumData checksumData =
+        checksum.computeChecksum(buf.asReadOnlyBuffer());
     ChunkInfo chunkInfo = ChunkInfo.newBuilder()
         .setChunkName(blockID.get().getLocalID() + "_chunk_" + ++chunkIndex)
         .setOffset(offset)
@@ -499,8 +501,8 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
     CompletableFuture<DataStreamReply> future =
         (needSync(offset + effectiveChunkSize) ?
-            out.writeAsync(buf.nioBuffer(), StandardWriteOption.SYNC) :
-            out.writeAsync(buf.nioBuffer()))
+            out.writeAsync(buf, StandardWriteOption.SYNC) :
+            out.writeAsync(buf))
             .whenCompleteAsync((r, e) -> {
               if (e != null || !r.isSuccess()) {
                 if (e == null) {
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufferStreamOutput.java
similarity index 82%
rename from hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java
rename to hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufferStreamOutput.java
index 7f40737..0650a68 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufferStreamOutput.java
@@ -18,23 +18,24 @@
 
 package org.apache.hadoop.hdds.scm.storage;
 
-import io.netty.buffer.ByteBuf;
-
 import java.io.Closeable;
 import java.io.IOException;
+import java.nio.ByteBuffer;
 
 /**
 * This interface is for writing an output stream of ByteBuffers.
-* An ByteBufStreamOutput accepts Netty ByteBuf and sends them to some sink.
+* An ByteBufferStreamOutput accepts nio ByteBuffer and sends them to some sink.
 */
-public interface ByteBufStreamOutput extends Closeable {
+public interface ByteBufferStreamOutput extends Closeable {
   /**
    * Try to write all the bytes in ByteBuf b to DataStream.
    *
    * @param b the data.
    * @exception IOException if an I/O error occurs.
    */
-  void write(ByteBuf b) throws IOException;
+  default void write(ByteBuffer b) throws IOException {
+    write(b, b.position(), b.remaining());
+  }
 
   /**
    * Try to write the [off:off + len) slice in ByteBuf b to DataStream.
@@ -44,9 +45,7 @@ public interface ByteBufStreamOutput extends Closeable {
    * @param len the number of bytes to write.
    * @exception  IOException  if an I/O error occurs.
    */
-  default void write(ByteBuf b, int off, int len) throws IOException {
-    write(b.slice(off, len));
-  }
+  void write(ByteBuffer b, int off, int len) throws IOException;
 
   /**
    * Flushes this DataStream output and forces any buffered output bytes
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
index 98907bf..f0c3a43 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
@@ -18,18 +18,18 @@
 package org.apache.hadoop.ozone.client.io;
 
 import com.google.common.annotations.VisibleForTesting;
-import io.netty.buffer.ByteBuf;
 import org.apache.hadoop.hdds.client.BlockID;
 import org.apache.hadoop.hdds.protocol.DatanodeDetails;
 import org.apache.hadoop.hdds.scm.OzoneClientConfig;
 import org.apache.hadoop.hdds.scm.XceiverClientFactory;
 import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
 import org.apache.hadoop.hdds.scm.storage.BlockDataStreamOutput;
-import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.hdds.scm.storage.ByteBufferStreamOutput;
 import org.apache.hadoop.hdds.security.token.OzoneBlockTokenIdentifier;
 import org.apache.hadoop.security.token.Token;
 
 import java.io.IOException;
+import java.nio.ByteBuffer;
 import java.util.Collection;
 import java.util.Collections;
 
@@ -37,10 +37,10 @@ import java.util.Collections;
  * Helper class used inside {@link BlockDataStreamOutput}.
  * */
 public final class BlockDataStreamOutputEntry
-    implements ByteBufStreamOutput {
+    implements ByteBufferStreamOutput {
 
   private final OzoneClientConfig config;
-  private ByteBufStreamOutput byteBufStreamOutput;
+  private ByteBufferStreamOutput byteBufferStreamOutput;
   private BlockID blockID;
   private final String key;
   private final XceiverClientFactory xceiverClientManager;
@@ -61,7 +61,7 @@ public final class BlockDataStreamOutputEntry
       OzoneClientConfig config
   ) {
     this.config = config;
-    this.byteBufStreamOutput = null;
+    this.byteBufferStreamOutput = null;
     this.blockID = blockID;
     this.key = key;
     this.xceiverClientManager = xceiverClientManager;
@@ -90,63 +90,62 @@ public final class BlockDataStreamOutputEntry
    * @throws IOException if xceiverClient initialization fails
    */
   private void checkStream() throws IOException {
-    if (this.byteBufStreamOutput == null) {
-      this.byteBufStreamOutput =
+    if (this.byteBufferStreamOutput == null) {
+      this.byteBufferStreamOutput =
           new BlockDataStreamOutput(blockID, xceiverClientManager,
               pipeline, config, token);
     }
   }
 
   @Override
-  public void write(ByteBuf b) throws IOException {
+  public void write(ByteBuffer b, int off, int len) throws IOException {
     checkStream();
-    final int len = b.readableBytes();
-    byteBufStreamOutput.write(b);
+    byteBufferStreamOutput.write(b, off, len);
     this.currentPosition += len;
   }
 
   @Override
   public void flush() throws IOException {
-    if (this.byteBufStreamOutput != null) {
-      this.byteBufStreamOutput.flush();
+    if (this.byteBufferStreamOutput != null) {
+      this.byteBufferStreamOutput.flush();
     }
   }
 
   @Override
   public void close() throws IOException {
-    if (this.byteBufStreamOutput != null) {
-      this.byteBufStreamOutput.close();
+    if (this.byteBufferStreamOutput != null) {
+      this.byteBufferStreamOutput.close();
       // after closing the chunkOutPutStream, blockId would have been
       // reconstructed with updated bcsId
       this.blockID =
-          ((BlockDataStreamOutput) byteBufStreamOutput).getBlockID();
+          ((BlockDataStreamOutput) byteBufferStreamOutput).getBlockID();
     }
   }
 
   boolean isClosed() {
-    if (byteBufStreamOutput != null) {
-      return  ((BlockDataStreamOutput) byteBufStreamOutput).isClosed();
+    if (byteBufferStreamOutput != null) {
+      return  ((BlockDataStreamOutput) byteBufferStreamOutput).isClosed();
     }
     return false;
   }
 
   Collection<DatanodeDetails> getFailedServers() {
-    if (byteBufStreamOutput != null) {
+    if (byteBufferStreamOutput != null) {
       BlockDataStreamOutput out =
-          (BlockDataStreamOutput) this.byteBufStreamOutput;
+          (BlockDataStreamOutput) this.byteBufferStreamOutput;
       return out.getFailedServers();
     }
     return Collections.emptyList();
   }
 
   long getWrittenDataLength() {
-    if (byteBufStreamOutput != null) {
+    if (byteBufferStreamOutput != null) {
       BlockDataStreamOutput out =
-          (BlockDataStreamOutput) this.byteBufStreamOutput;
+          (BlockDataStreamOutput) this.byteBufferStreamOutput;
       return out.getWrittenDataLength();
     } else {
       // For a pre allocated block for which no write has been initiated,
-      // the ByteBufStreamOutput will be null here.
+      // the ByteBufferStreamOutput will be null here.
       // In such cases, the default blockCommitSequenceId will be 0
       return 0;
     }
@@ -155,7 +154,7 @@ public final class BlockDataStreamOutputEntry
   void cleanup(boolean invalidateClient) throws IOException {
     checkStream();
     BlockDataStreamOutput out =
-        (BlockDataStreamOutput) this.byteBufStreamOutput;
+        (BlockDataStreamOutput) this.byteBufferStreamOutput;
     out.cleanup(invalidateClient);
 
   }
@@ -163,7 +162,7 @@ public final class BlockDataStreamOutputEntry
   void writeOnRetry(long len) throws IOException {
     checkStream();
     BlockDataStreamOutput out =
-        (BlockDataStreamOutput) this.byteBufStreamOutput;
+        (BlockDataStreamOutput) this.byteBufferStreamOutput;
     out.writeOnRetry(len);
     this.currentPosition += len;
 
@@ -231,8 +230,8 @@ public final class BlockDataStreamOutputEntry
   }
 
   @VisibleForTesting
-  public ByteBufStreamOutput getByteBufStreamOutput() {
-    return byteBufStreamOutput;
+  public ByteBufferStreamOutput getByteBufStreamOutput() {
+    return byteBufferStreamOutput;
   }
 
   public BlockID getBlockID() {
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
index c37f9cd..9bba89d 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
@@ -19,7 +19,6 @@ package org.apache.hadoop.ozone.client.io;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
-import io.netty.buffer.ByteBuf;
 import org.apache.hadoop.fs.FSExceptionMessages;
 import org.apache.hadoop.fs.FileEncryptionInfo;
 import org.apache.hadoop.hdds.client.ReplicationConfig;
@@ -32,7 +31,7 @@ import org.apache.hadoop.hdds.scm.container.common.helpers.ExcludeList;
 import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
 import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
 import org.apache.hadoop.hdds.scm.pipeline.PipelineID;
-import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.hdds.scm.storage.ByteBufferStreamOutput;
 import org.apache.hadoop.io.retry.RetryPolicies;
 import org.apache.hadoop.io.retry.RetryPolicy;
 import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
@@ -48,6 +47,7 @@ import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.io.InterruptedIOException;
+import java.nio.ByteBuffer;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
@@ -63,7 +63,7 @@ import java.util.stream.Collectors;
  *
  * TODO : currently not support multi-thread access.
  */
-public class KeyDataStreamOutput implements ByteBufStreamOutput {
+public class KeyDataStreamOutput implements ByteBufferStreamOutput {
 
   private OzoneClientConfig config;
 
@@ -185,17 +185,16 @@ public class KeyDataStreamOutput implements ByteBufStreamOutput {
   }
 
   @Override
-  public void write(ByteBuf b) throws IOException {
+  public void write(ByteBuffer b, int off, int len) throws IOException {
     checkNotClosed();
     if (b == null) {
       throw new NullPointerException();
     }
-    final int len = b.readableBytes();
-    handleWrite(b, b.readerIndex(), len, false);
+    handleWrite(b, off, len, false);
     writeOffset += len;
   }
 
-  private void handleWrite(ByteBuf b, int off, long len, boolean retry)
+  private void handleWrite(ByteBuffer b, int off, long len, boolean retry)
       throws IOException {
     while (len > 0) {
       try {
@@ -227,7 +226,7 @@ public class KeyDataStreamOutput implements ByteBufStreamOutput {
   }
 
   private int writeToDataStreamOutput(BlockDataStreamOutputEntry current,
-      boolean retry, long len, ByteBuf b, int writeLen, int off,
+      boolean retry, long len, ByteBuffer b, int writeLen, int off,
       long currentPos) throws IOException {
     try {
       if (retry) {
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java
index 378b868..d40ac2b 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java
@@ -16,55 +16,55 @@
  */
 package org.apache.hadoop.ozone.client.io;
 
-import io.netty.buffer.ByteBuf;
-import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.hdds.scm.storage.ByteBufferStreamOutput;
 import org.apache.hadoop.ozone.om.helpers.OmMultipartCommitUploadPartInfo;
 
 import java.io.IOException;
+import java.nio.ByteBuffer;
 
 /**
  * OzoneDataStreamOutput is used to write data into Ozone.
  * It uses SCM's {@link KeyDataStreamOutput} for writing the data.
  */
-public class OzoneDataStreamOutput implements ByteBufStreamOutput {
+public class OzoneDataStreamOutput implements ByteBufferStreamOutput {
 
-  private final ByteBufStreamOutput byteBufStreamOutput;
+  private final ByteBufferStreamOutput byteBufferStreamOutput;
 
   /**
    * Constructs OzoneDataStreamOutput with KeyDataStreamOutput.
    *
-   * @param byteBufStreamOutput
+   * @param byteBufferStreamOutput the underlying ByteBufferStreamOutput
    */
-  public OzoneDataStreamOutput(ByteBufStreamOutput byteBufStreamOutput) {
-    this.byteBufStreamOutput = byteBufStreamOutput;
+  public OzoneDataStreamOutput(ByteBufferStreamOutput byteBufferStreamOutput) {
+    this.byteBufferStreamOutput = byteBufferStreamOutput;
   }
 
   @Override
-  public void write(ByteBuf b) throws IOException {
-    byteBufStreamOutput.write(b);
+  public void write(ByteBuffer b, int off, int len) throws IOException {
+    byteBufferStreamOutput.write(b, off, len);
   }
 
   @Override
   public synchronized void flush() throws IOException {
-    byteBufStreamOutput.flush();
+    byteBufferStreamOutput.flush();
   }
 
   @Override
   public synchronized void close() throws IOException {
     //commitKey can be done here, if needed.
-    byteBufStreamOutput.close();
+    byteBufferStreamOutput.close();
   }
 
   public OmMultipartCommitUploadPartInfo getCommitUploadPartInfo() {
-    if (byteBufStreamOutput instanceof KeyDataStreamOutput) {
+    if (byteBufferStreamOutput instanceof KeyDataStreamOutput) {
       return ((KeyDataStreamOutput)
-              byteBufStreamOutput).getCommitUploadPartInfo();
+              byteBufferStreamOutput).getCommitUploadPartInfo();
     }
     // Otherwise return null.
     return null;
   }
 
-  public ByteBufStreamOutput getByteBufStreamOutput() {
-    return byteBufStreamOutput;
+  public ByteBufferStreamOutput getByteBufStreamOutput() {
+    return byteBufferStreamOutput;
   }
 }
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java
index 4d52d89..6d5401d 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java
@@ -17,7 +17,6 @@
 
 package org.apache.hadoop.ozone.client.rpc;
 
-import io.netty.buffer.Unpooled;
 import org.apache.hadoop.conf.StorageUnit;
 import org.apache.hadoop.hdds.client.ReplicationType;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
@@ -38,6 +37,7 @@ import org.junit.Test;
 import org.junit.rules.Timeout;
 
 import java.io.IOException;
+import java.nio.ByteBuffer;
 import java.util.UUID;
 import java.util.concurrent.TimeUnit;
 
@@ -127,47 +127,37 @@ public class TestBlockDataStreamOutput {
   }
 
   @Test
+  public void testHalfChunkWrite() throws Exception {
+    testWrite(chunkSize / 2);
+  }
+
+  @Test
+  public void testSingleChunkWrite() throws Exception {
+    testWrite(chunkSize);
+  }
+
+  @Test
   public void testMultiChunkWrite() throws Exception {
-    // write data less than 1 chunk size use streaming.
-    String keyName1 = getKeyName();
-    OzoneDataStreamOutput key1 = createKey(
-        keyName1, ReplicationType.RATIS, 0);
-    int dataLength1 = chunkSize/2;
-    byte[] data1 =
-        ContainerTestHelper.getFixedLengthString(keyString, dataLength1)
-            .getBytes(UTF_8);
-    key1.write(Unpooled.copiedBuffer(data1));
-    // now close the stream, It will update the key length.
-    key1.close();
-    validateData(keyName1, data1);
-
-    // write data more than 1 chunk size use streaming.
-    String keyName2 = getKeyName();
-    OzoneDataStreamOutput key2 = createKey(
-        keyName2, ReplicationType.RATIS, 0);
-    int dataLength2 = chunkSize + 50;
-    byte[] data2 =
-        ContainerTestHelper.getFixedLengthString(keyString, dataLength2)
-            .getBytes(UTF_8);
-    key2.write(Unpooled.copiedBuffer(data2));
-    // now close the stream, It will update the key length.
-    key2.close();
-    validateData(keyName2, data2);
-
-    // write data more than 1 block size use streaming.
-    String keyName3 = getKeyName();
-    OzoneDataStreamOutput key3 = createKey(
-        keyName3, ReplicationType.RATIS, 0);
-    int dataLength3 = blockSize + 50;
-    byte[] data3 =
-        ContainerTestHelper.getFixedLengthString(keyString, dataLength3)
+    testWrite(chunkSize + 50);
+  }
+
+  @Test
+  public void testMultiBlockWrite() throws Exception {
+    testWrite(blockSize + 50);
+  }
+
+  private void testWrite(int dataLength) throws Exception {
+    String keyName = getKeyName();
+    OzoneDataStreamOutput key = createKey(
+        keyName, ReplicationType.RATIS, 0);
+    byte[] data =
+        ContainerTestHelper.getFixedLengthString(keyString, dataLength)
             .getBytes(UTF_8);
-    key3.write(Unpooled.copiedBuffer(data3));
+    key.write(ByteBuffer.wrap(data));
     // now close the stream, It will update the key length.
-    key3.close();
-    validateData(keyName3, data3);
+    key.close();
+    validateData(keyName, data);
   }
-
   private OzoneDataStreamOutput createKey(String keyName, ReplicationType type,
       long size) throws Exception {
     return TestHelper.createStreamKey(
diff --git a/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java b/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
index 56bc834..af6a461 100644
--- a/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
+++ b/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
@@ -29,8 +29,6 @@ import java.nio.channels.FileChannel;
 import java.util.HashMap;
 import java.util.Map;
 
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
 import org.apache.hadoop.conf.StorageUnit;
 import org.apache.hadoop.hdds.client.ReplicationConfig;
 import org.apache.hadoop.hdds.client.ReplicationConfigValidator;
@@ -141,10 +139,8 @@ public class PutKeyHandler extends KeyHandler {
         long off = 0;
         while (len > 0) {
           long writeLen = Math.min(len, chunkSize);
-          ByteBuffer segment =
-              ch.map(FileChannel.MapMode.READ_ONLY, off, writeLen);
-          ByteBuf buf = Unpooled.wrappedBuffer(segment);
-          out.write(buf);
+          ByteBuffer bb = ch.map(FileChannel.MapMode.READ_ONLY, off, writeLen);
+          out.write(bb);
           off += writeLen;
           len -= writeLen;
         }

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[ozone] 06/09: HDDS-5599. [Ozone-Streaming]drop BufferPool and ChunkBuffer to avoid buffer copying (#2557)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit 69464ce6f5b44c3bd598de7ac3b27de1211d8315
Author: micah zhao <mi...@tencent.com>
AuthorDate: Wed Aug 25 23:39:10 2021 +0800

    HDDS-5599.  [Ozone-Streaming]drop BufferPool and ChunkBuffer to avoid buffer copying (#2557)
---
 .../hdds/scm/storage/BlockDataStreamOutput.java    | 290 +++------------------
 .../hdds/scm/storage/StreamCommitWatcher.java      | 166 ++++++++++++
 .../client/io/BlockDataStreamOutputEntry.java      |  33 +--
 .../client/io/BlockDataStreamOutputEntryPool.java  |  20 --
 .../ozone/client/io/KeyDataStreamOutput.java       |  29 +--
 5 files changed, 211 insertions(+), 327 deletions(-)

diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
index f658df1..39ec2f9 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
@@ -36,21 +36,18 @@ import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerExcep
 import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
 import org.apache.hadoop.ozone.common.Checksum;
 import org.apache.hadoop.ozone.common.ChecksumData;
-import org.apache.hadoop.ozone.common.ChunkBuffer;
 import org.apache.hadoop.ozone.common.OzoneChecksumException;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
 import org.apache.ratis.client.api.DataStreamOutput;
 import org.apache.ratis.io.StandardWriteOption;
 import org.apache.ratis.protocol.DataStreamReply;
-import org.apache.ratis.thirdparty.com.google.protobuf.ByteString;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionException;
 import java.util.concurrent.ExecutionException;
@@ -93,7 +90,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
   private int chunkIndex;
   private final AtomicLong chunkOffset = new AtomicLong();
-  private final BufferPool bufferPool;
   // The IOException will be set by response handling thread in case there is an
   // exception received in the response. If the exception is set, the next
   // request will fail upfront.
@@ -106,28 +102,16 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
   // effective data write attempted so far for the block
   private long writtenDataLength;
 
-  // List containing buffers for which the putBlock call will
-  // update the length in the datanodes. This list will just maintain
-  // references to the buffers in the BufferPool which will be cleared
-  // when the watchForCommit acknowledges a putBlock logIndex has been
-  // committed on all datanodes. This list will be a  place holder for buffers
-  // which got written between successive putBlock calls.
-  private List<ChunkBuffer> bufferList;
-
   // This object will maintain the commitIndexes and byteBufferList in order
   // Also, corresponding to the logIndex, the corresponding list of buffers will
   // be released from the buffer pool.
-  private final CommitWatcher commitWatcher;
+  private final StreamCommitWatcher commitWatcher;
 
   private final List<DatanodeDetails> failedServers;
   private final Checksum checksum;
 
   //number of buffers used before doing a flush/putBlock.
   private int flushPeriod;
-  //bytes remaining to write in the current buffer.
-  private int currentBufferRemaining;
-  //current buffer allocated to write
-  private ChunkBuffer currentBuffer;
   private final Token<? extends TokenIdentifier> token;
   private final DataStreamOutput out;
   private CompletableFuture<DataStreamReply> dataStreamCloseReply;
@@ -141,13 +125,11 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
    * @param blockID              block ID
    * @param xceiverClientManager client manager that controls client
    * @param pipeline             pipeline where block will be written
-   * @param bufferPool           pool of buffers
    */
   public BlockDataStreamOutput(
       BlockID blockID,
       XceiverClientFactory xceiverClientManager,
       Pipeline pipeline,
-      BufferPool bufferPool,
       OzoneClientConfig config,
       Token<? extends TokenIdentifier> token
   ) throws IOException {
@@ -163,11 +145,8 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
         (XceiverClientRatis)xceiverClientManager.acquireClient(pipeline);
     // Alternatively, stream setup can be delayed till the first chunk write.
     this.out = setupStream();
-    this.bufferPool = bufferPool;
     this.token = token;
 
-    //number of buffers used before doing a flush
-    refreshCurrentBuffer(bufferPool);
     flushPeriod = (int) (config.getStreamBufferFlushSize() / config
         .getStreamBufferSize());
 
@@ -178,8 +157,7 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
     // A single thread executor handle the responses of async requests
     responseExecutor = Executors.newSingleThreadExecutor();
-    commitWatcher = new CommitWatcher(bufferPool, xceiverClient);
-    bufferList = null;
+    commitWatcher = new StreamCommitWatcher(xceiverClient);
     totalDataFlushedLength = 0;
     writtenDataLength = 0;
     failedServers = new ArrayList<>(0);
@@ -209,20 +187,10 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
         .stream(message.getContent().asReadOnlyByteBuffer());
   }
 
-  private void refreshCurrentBuffer(BufferPool pool) {
-    currentBuffer = pool.getCurrentBuffer();
-    currentBufferRemaining =
-        currentBuffer != null ? currentBuffer.remaining() : 0;
-  }
-
   public BlockID getBlockID() {
     return blockID.get();
   }
 
-  public long getTotalAckDataLength() {
-    return commitWatcher.getTotalAckDataLength();
-  }
-
   public long getWrittenDataLength() {
     return writtenDataLength;
   }
@@ -236,82 +204,29 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
     return xceiverClient;
   }
 
-  @VisibleForTesting
-  public long getTotalDataFlushedLength() {
-    return totalDataFlushedLength;
-  }
-
-  @VisibleForTesting
-  public BufferPool getBufferPool() {
-    return bufferPool;
-  }
-
   public IOException getIoException() {
     return ioException.get();
   }
 
-  @VisibleForTesting
-  public Map<Long, List<ChunkBuffer>> getCommitIndex2flushedDataMap() {
-    return commitWatcher.getCommitIndex2flushedDataMap();
-  }
-
   @Override
-  public void write(ByteBuf b) throws IOException {
+  public void write(ByteBuf buf) throws IOException {
     checkOpen();
-    if (b == null) {
+    if (buf == null) {
       throw new NullPointerException();
     }
-    int off = b.readerIndex();
-    int len = b.readableBytes();
-
-    while (len > 0) {
-      allocateNewBufferIfNeeded();
-      final int writeLen = Math.min(currentBufferRemaining, len);
-      // TODO: avoid buffer copy here
-      currentBuffer.put(b.nioBuffer(off, writeLen));
-      currentBufferRemaining -= writeLen;
-      writeChunkIfNeeded();
-      off += writeLen;
-      len -= writeLen;
-      writtenDataLength += writeLen;
-      doFlushOrWatchIfNeeded();
-    }
-  }
-
-  private void writeChunkIfNeeded() throws IOException {
-    if (currentBufferRemaining == 0) {
-      writeChunk(currentBuffer);
-    }
-  }
-
-  private void doFlushOrWatchIfNeeded() throws IOException {
-    if (currentBufferRemaining == 0) {
-      if (bufferPool.getNumberOfUsedBuffers() % flushPeriod == 0) {
-        updateFlushLength();
-        executePutBlock(false, false);
-      }
-      // Data in the bufferPool can not exceed streamBufferMaxSize
-      if (bufferPool.getNumberOfUsedBuffers() == bufferPool.getCapacity()) {
-        handleFullBuffer();
-      }
+    final int len = buf.readableBytes();
+    if (len == 0) {
+      return;
     }
-  }
+    writeChunkToContainer(buf);
 
-  private void allocateNewBufferIfNeeded() {
-    if (currentBufferRemaining == 0) {
-      currentBuffer = bufferPool.allocateBuffer(config.getBufferIncrement());
-      currentBufferRemaining = currentBuffer.remaining();
-    }
+    writtenDataLength += len;
   }
 
   private void updateFlushLength() {
     totalDataFlushedLength = writtenDataLength;
   }
 
-  private boolean isBufferPoolFull() {
-    return bufferPool.computeBufferData() == config.getStreamBufferMaxSize();
-  }
-
   /**
    * Will be called on the retryPath in case closedContainerException/
    * TimeoutException.
@@ -319,70 +234,9 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
    * @throws IOException if error occurred
    */
 
-  // In this case, the data is already cached in the currentBuffer.
+  // TODO: We need add new retry policy without depend on bufferPool.
   public void writeOnRetry(long len) throws IOException {
-    if (len == 0) {
-      return;
-    }
-    if (LOG.isDebugEnabled()) {
-      LOG.debug("Retrying write length {} for blockID {}", len, blockID);
-    }
-    Preconditions.checkArgument(len <= config.getStreamBufferMaxSize());
-    int count = 0;
-    while (len > 0) {
-      ChunkBuffer buffer = bufferPool.getBuffer(count);
-      long writeLen = Math.min(buffer.position(), len);
-      if (!buffer.hasRemaining()) {
-        writeChunk(buffer);
-      }
-      len -= writeLen;
-      count++;
-      writtenDataLength += writeLen;
-      // we should not call isBufferFull/shouldFlush here.
-      // The buffer might already be full as whole data is already cached in
-      // the buffer. We should just validate
-      // if we wrote data of size streamBufferMaxSize/streamBufferFlushSize to
-      // call for handling full buffer/flush buffer condition.
-      if (writtenDataLength % config.getStreamBufferFlushSize() == 0) {
-        // reset the position to zero as now we will be reading the
-        // next buffer in the list
-        updateFlushLength();
-        executePutBlock(false, false);
-      }
-      if (writtenDataLength == config.getStreamBufferMaxSize()) {
-        handleFullBuffer();
-      }
-    }
-  }
 
-  /**
-   * This is a blocking call. It will wait for the flush till the commit index
-   * at the head of the commitIndex2flushedDataMap gets replicated to all or
-   * majority.
-   * @throws IOException
-   */
-  private void handleFullBuffer() throws IOException {
-    try {
-      checkOpen();
-      if (!commitWatcher.getFutureMap().isEmpty()) {
-        waitOnFlushFutures();
-      }
-    } catch (ExecutionException e) {
-      handleExecutionException(e);
-    } catch (InterruptedException ex) {
-      Thread.currentThread().interrupt();
-      handleInterruptedException(ex, true);
-    }
-    watchForCommit(true);
-  }
-
-
-  // It may happen that once the exception is encountered , we still might
-  // have successfully flushed up to a certain index. Make sure the buffers
-  // only contain data which have not been sufficiently replicated
-  private void adjustBuffersOnException() {
-    commitWatcher.releaseBuffersOnException();
-    refreshCurrentBuffer(bufferPool);
   }
 
   /**
@@ -397,7 +251,8 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
     checkOpen();
     try {
       XceiverClientReply reply = bufferFull ?
-          commitWatcher.watchOnFirstIndex() : commitWatcher.watchOnLastIndex();
+          commitWatcher.streamWatchOnFirstIndex() :
+          commitWatcher.streamWatchOnLastIndex();
       if (reply != null) {
         List<DatanodeDetails> dnList = reply.getDatanodes();
         if (!dnList.isEmpty()) {
@@ -412,7 +267,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
       setIoException(ioe);
       throw getIoException();
     }
-    refreshCurrentBuffer(bufferPool);
 
   }
 
@@ -426,22 +280,7 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
       boolean force) throws IOException {
     checkOpen();
     long flushPos = totalDataFlushedLength;
-    final List<ChunkBuffer> byteBufferList;
-    if (!force) {
-      Preconditions.checkNotNull(bufferList);
-      byteBufferList = bufferList;
-      bufferList = null;
-      Preconditions.checkNotNull(byteBufferList);
-    } else {
-      byteBufferList = null;
-    }
-
-    try {
-      CompletableFuture.allOf(futures.toArray(EMPTY_FUTURE_ARRAY)).get();
-    } catch (Exception e) {
-      LOG.warn("Failed to write all chunks through stream: " + e);
-      throw new IOException(e);
-    }
+    flush();
     if (close) {
       dataStreamCloseReply = out.closeAsync();
     }
@@ -471,15 +310,12 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
           if (LOG.isDebugEnabled()) {
             LOG.debug(
                 "Adding index " + asyncReply.getLogIndex() + " commitMap size "
-                    + commitWatcher.getCommitInfoMapSize() + " flushLength "
-                    + flushPos + " numBuffers " + byteBufferList.size()
-                    + " blockID " + blockID + " bufferPool size" + bufferPool
-                    .getSize() + " currentBufferIndex " + bufferPool
-                    .getCurrentBufferIndex());
+                    + commitWatcher.getCommitInfoSetSize() + " flushLength "
+                    + flushPos + " blockID " + blockID);
           }
           // for standalone protocol, logIndex will always be 0.
-          commitWatcher
-              .updateCommitInfoMap(asyncReply.getLogIndex(), byteBufferList);
+          commitWatcher.updateCommitInfoSet(
+              asyncReply.getLogIndex());
         }
         return e;
       }, responseExecutor).exceptionally(e -> {
@@ -503,36 +339,12 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
   @Override
   public void flush() throws IOException {
-    if (xceiverClientFactory != null && xceiverClient != null
-        && bufferPool != null && bufferPool.getSize() > 0
-        && (!config.isStreamBufferFlushDelay() ||
-            writtenDataLength - totalDataFlushedLength
-                >= config.getStreamBufferSize())) {
-      try {
-        handleFlush(false);
-      } catch (ExecutionException e) {
-        // just set the exception here as well in order to maintain sanctity of
-        // ioException field
-        handleExecutionException(e);
-      } catch (InterruptedException ex) {
-        Thread.currentThread().interrupt();
-        handleInterruptedException(ex, true);
-      }
-    }
-  }
-
-  private void writeChunk(ChunkBuffer buffer)
-      throws IOException {
-    // This data in the buffer will be pushed to datanode and a reference will
-    // be added to the bufferList. Once putBlock gets executed, this list will
-    // be marked null. Hence, during first writeChunk call after every putBlock
-    // call or during the first call to writeChunk here, the list will be null.
-
-    if (bufferList == null) {
-      bufferList = new ArrayList<>();
+    try {
+      CompletableFuture.allOf(futures.toArray(EMPTY_FUTURE_ARRAY)).get();
+    } catch (Exception e) {
+      LOG.warn("Failed to write all chunks through stream: " + e);
+      throw new IOException(e);
     }
-    bufferList.add(buffer);
-    writeChunkToContainer(buffer.duplicate(0, buffer.position()));
   }
 
   /**
@@ -543,11 +355,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
     checkOpen();
     // flush the last chunk data residing on the currentBuffer
     if (totalDataFlushedLength < writtenDataLength) {
-      refreshCurrentBuffer(bufferPool);
-      Preconditions.checkArgument(currentBuffer.position() > 0);
-      if (currentBuffer.hasRemaining()) {
-        writeChunk(currentBuffer);
-      }
       // This can be a partially filled chunk. Since we are flushing the buffer
       // here, we just limit this buffer to the current position. So that next
       // write will happen in new buffer
@@ -570,8 +377,7 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
   @Override
   public void close() throws IOException {
-    if (xceiverClientFactory != null && xceiverClient != null
-        && bufferPool != null && bufferPool.getSize() > 0) {
+    if (xceiverClientFactory != null && xceiverClient != null) {
       try {
         handleFlush(true);
         dataStreamCloseReply.get();
@@ -583,10 +389,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
       } finally {
         cleanup(false);
       }
-      // TODO: Turn the below buffer empty check on when Standalone pipeline
-      // is removed in the write path in tests
-      // Preconditions.checkArgument(buffer.position() == 0);
-      // bufferPool.checkBufferPoolEmpty();
 
     }
   }
@@ -638,10 +440,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
     xceiverClientFactory = null;
     xceiverClient = null;
     commitWatcher.cleanup();
-    if (bufferList !=  null) {
-      bufferList.clear();
-    }
-    bufferList = null;
     responseExecutor.shutdown();
   }
 
@@ -655,7 +453,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
     if (isClosed()) {
       throw new IOException("BlockDataStreamOutput has been closed.");
     } else if (getIoException() != null) {
-      adjustBuffersOnException();
       throw getIoException();
     }
   }
@@ -683,12 +480,11 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
    * @throws OzoneChecksumException if there is an error while computing
    * checksum
    */
-  private void writeChunkToContainer(ChunkBuffer chunk) throws IOException {
-    int effectiveChunkSize = chunk.remaining();
+  private void writeChunkToContainer(ByteBuf buf)
+      throws IOException {
+    ChecksumData checksumData = checksum.computeChecksum(buf.nioBuffer());
+    int effectiveChunkSize = buf.readableBytes();
     final long offset = chunkOffset.getAndAdd(effectiveChunkSize);
-    final ByteString data = chunk.toByteString(
-        bufferPool.byteStringConversion());
-    ChecksumData checksumData = checksum.computeChecksum(chunk);
     ChunkInfo chunkInfo = ChunkInfo.newBuilder()
         .setChunkName(blockID.get().getLocalID() + "_chunk_" + ++chunkIndex)
         .setOffset(offset)
@@ -703,21 +499,22 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
 
     CompletableFuture<DataStreamReply> future =
         (needSync(offset + effectiveChunkSize) ?
-        out.writeAsync(data.asReadOnlyByteBuffer(), StandardWriteOption.SYNC) :
-        out.writeAsync(data.asReadOnlyByteBuffer()))
-        .whenCompleteAsync((r, e) -> {
-          if (e != null || !r.isSuccess()) {
-            if (e == null) {
-              e = new IOException("result is not success");
-            }
-            String msg = "Failed to write chunk " + chunkInfo.getChunkName() +
-                " " + "into block " + blockID;
-            LOG.debug("{}, exception: {}", msg, e.getLocalizedMessage());
-            CompletionException ce = new CompletionException(msg, e);
-            setIoException(ce);
-            throw ce;
-          }
-        }, responseExecutor);
+            out.writeAsync(buf.nioBuffer(), StandardWriteOption.SYNC) :
+            out.writeAsync(buf.nioBuffer()))
+            .whenCompleteAsync((r, e) -> {
+              if (e != null || !r.isSuccess()) {
+                if (e == null) {
+                  e = new IOException("result is not success");
+                }
+                String msg =
+                    "Failed to write chunk " + chunkInfo.getChunkName() +
+                        " " + "into block " + blockID;
+                LOG.debug("{}, exception: {}", msg, e.getLocalizedMessage());
+                CompletionException ce = new CompletionException(msg, e);
+                setIoException(ce);
+                throw ce;
+              }
+            }, responseExecutor);
 
     futures.add(future);
     containerBlockData.addChunks(chunkInfo);
@@ -754,7 +551,6 @@ public class BlockDataStreamOutput implements ByteBufStreamOutput {
    */
   private void handleExecutionException(Exception ex) throws IOException {
     setIoException(ex);
-    adjustBuffersOnException();
     throw getIoException();
   }
 }
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/StreamCommitWatcher.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/StreamCommitWatcher.java
new file mode 100644
index 0000000..c187ffe
--- /dev/null
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/StreamCommitWatcher.java
@@ -0,0 +1,166 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * This class maintains the map of the commitIndexes to be watched for
+ * successful replication in the datanodes in a given pipeline. It also releases
+ * the buffers associated with the user data back to {@Link BufferPool} once
+ * minimum replication criteria is achieved during an ozone key write.
+ */
+package org.apache.hadoop.hdds.scm.storage;
+
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ContainerCommandResponseProto;
+import org.apache.hadoop.hdds.scm.XceiverClientReply;
+import org.apache.hadoop.hdds.scm.XceiverClientSpi;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Set;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.ConcurrentSkipListSet;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeoutException;
+
+/**
+ * This class executes watchForCommit on ratis pipeline and releases
+ * buffers once data successfully gets replicated.
+ */
+public class StreamCommitWatcher {
+
+  private static final Logger LOG =
+      LoggerFactory.getLogger(StreamCommitWatcher.class);
+
+  private Set<Long> commitIndexSet;
+
+  // future Map to hold up all putBlock futures
+  private ConcurrentHashMap<Long,
+      CompletableFuture<ContainerCommandResponseProto>>
+      futureMap;
+
+  private XceiverClientSpi xceiverClient;
+
+  public StreamCommitWatcher(XceiverClientSpi xceiverClient) {
+    this.xceiverClient = xceiverClient;
+    commitIndexSet = new ConcurrentSkipListSet();
+    futureMap = new ConcurrentHashMap<>();
+  }
+
+  public void updateCommitInfoSet(long index) {
+    commitIndexSet.add(index);
+  }
+
+  int getCommitInfoSetSize() {
+    return commitIndexSet.size();
+  }
+
+  /**
+   * Calls watch for commit for the first index in commitIndex2flushedDataMap to
+   * the Ratis client.
+   * @return {@link XceiverClientReply} reply from raft client
+   * @throws IOException in case watchForCommit fails
+   */
+  public XceiverClientReply streamWatchOnFirstIndex() throws IOException {
+    if (!commitIndexSet.isEmpty()) {
+      // wait for the  first commit index in the commitIndex2flushedDataMap
+      // to get committed to all or majority of nodes in case timeout
+      // happens.
+      long index =
+          commitIndexSet.stream().mapToLong(v -> v).min()
+              .getAsLong();
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("waiting for first index {} to catch up", index);
+      }
+      return streamWatchForCommit(index);
+    } else {
+      return null;
+    }
+  }
+
+  /**
+   * Calls watch for commit for the last index in commitIndex2flushedDataMap to
+   * the Ratis client.
+   * @return {@link XceiverClientReply} reply from raft client
+   * @throws IOException in case watchForCommit fails
+   */
+  public XceiverClientReply streamWatchOnLastIndex()
+      throws IOException {
+    if (!commitIndexSet.isEmpty()) {
+      // wait for the  commit index in the commitIndex2flushedDataMap
+      // to get committed to all or majority of nodes in case timeout
+      // happens.
+      long index =
+          commitIndexSet.stream().mapToLong(v -> v).max()
+              .getAsLong();
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("waiting for last flush Index {} to catch up", index);
+      }
+      return streamWatchForCommit(index);
+    } else {
+      return null;
+    }
+  }
+
+  /**
+   * calls watchForCommit API of the Ratis Client. This method is for streaming
+   * and no longer requires releaseBuffers
+   * @param commitIndex log index to watch for
+   * @return minimum commit index replicated to all nodes
+   * @throws IOException IOException in case watch gets timed out
+   */
+  public XceiverClientReply streamWatchForCommit(long commitIndex)
+      throws IOException {
+    try {
+      XceiverClientReply reply =
+          xceiverClient.watchForCommit(commitIndex);
+      return reply;
+    } catch (InterruptedException e) {
+      // Re-interrupt the thread while catching InterruptedException
+      Thread.currentThread().interrupt();
+      throw getIOExceptionForWatchForCommit(commitIndex, e);
+    } catch (TimeoutException | ExecutionException e) {
+      throw getIOExceptionForWatchForCommit(commitIndex, e);
+    }
+  }
+
+  private IOException getIOExceptionForWatchForCommit(long commitIndex,
+                                                       Exception e) {
+    LOG.warn("watchForCommit failed for index {}", commitIndex, e);
+    IOException ioException = new IOException(
+        "Unexpected Storage Container Exception: " + e.toString(), e);
+    return ioException;
+  }
+
+  public ConcurrentMap<Long,
+        CompletableFuture<
+            ContainerCommandResponseProto>> getFutureMap() {
+    return futureMap;
+  }
+
+  public void cleanup() {
+    if (commitIndexSet != null) {
+      commitIndexSet.clear();
+    }
+    if (futureMap != null) {
+      futureMap.clear();
+    }
+    commitIndexSet = null;
+  }
+}
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
index 6954742..98907bf 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
@@ -25,7 +25,6 @@ import org.apache.hadoop.hdds.scm.OzoneClientConfig;
 import org.apache.hadoop.hdds.scm.XceiverClientFactory;
 import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
 import org.apache.hadoop.hdds.scm.storage.BlockDataStreamOutput;
-import org.apache.hadoop.hdds.scm.storage.BufferPool;
 import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
 import org.apache.hadoop.hdds.security.token.OzoneBlockTokenIdentifier;
 import org.apache.hadoop.security.token.Token;
@@ -52,15 +51,12 @@ public final class BlockDataStreamOutputEntry
   private long currentPosition;
   private final Token<OzoneBlockTokenIdentifier> token;
 
-  private BufferPool bufferPool;
-
   @SuppressWarnings({"parameternumber", "squid:S00107"})
   private BlockDataStreamOutputEntry(
       BlockID blockID, String key,
       XceiverClientFactory xceiverClientManager,
       Pipeline pipeline,
       long length,
-      BufferPool bufferPool,
       Token<OzoneBlockTokenIdentifier> token,
       OzoneClientConfig config
   ) {
@@ -73,7 +69,6 @@ public final class BlockDataStreamOutputEntry
     this.token = token;
     this.length = length;
     this.currentPosition = 0;
-    this.bufferPool = bufferPool;
   }
 
   long getLength() {
@@ -98,7 +93,7 @@ public final class BlockDataStreamOutputEntry
     if (this.byteBufStreamOutput == null) {
       this.byteBufStreamOutput =
           new BlockDataStreamOutput(blockID, xceiverClientManager,
-              pipeline, bufferPool, config, token);
+              pipeline, config, token);
     }
   }
 
@@ -135,20 +130,6 @@ public final class BlockDataStreamOutputEntry
     return false;
   }
 
-  long getTotalAckDataLength() {
-    if (byteBufStreamOutput != null) {
-      BlockDataStreamOutput out =
-          (BlockDataStreamOutput) this.byteBufStreamOutput;
-      blockID = out.getBlockID();
-      return out.getTotalAckDataLength();
-    } else {
-      // For a pre allocated block for which no write has been initiated,
-      // the ByteBufStreamOutput will be null here.
-      // In such cases, the default blockCommitSequenceId will be 0
-      return 0;
-    }
-  }
-
   Collection<DatanodeDetails> getFailedServers() {
     if (byteBufStreamOutput != null) {
       BlockDataStreamOutput out =
@@ -198,7 +179,6 @@ public final class BlockDataStreamOutputEntry
     private XceiverClientFactory xceiverClientManager;
     private Pipeline pipeline;
     private long length;
-    private BufferPool bufferPool;
     private Token<OzoneBlockTokenIdentifier> token;
     private OzoneClientConfig config;
 
@@ -230,12 +210,6 @@ public final class BlockDataStreamOutputEntry
       return this;
     }
 
-
-    public Builder setBufferPool(BufferPool pool) {
-      this.bufferPool = pool;
-      return this;
-    }
-
     public Builder setConfig(OzoneClientConfig clientConfig) {
       this.config = clientConfig;
       return this;
@@ -252,7 +226,6 @@ public final class BlockDataStreamOutputEntry
           xceiverClientManager,
           pipeline,
           length,
-          bufferPool,
           token, config);
     }
   }
@@ -282,10 +255,6 @@ public final class BlockDataStreamOutputEntry
     return currentPosition;
   }
 
-  public BufferPool getBufferPool() {
-    return bufferPool;
-  }
-
   public void setCurrentPosition(long curPosition) {
     this.currentPosition = curPosition;
   }
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java
index 94c505f..4bc55de 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java
@@ -22,12 +22,10 @@ import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import org.apache.hadoop.hdds.client.ReplicationConfig;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
-import org.apache.hadoop.hdds.scm.ByteStringConversion;
 import org.apache.hadoop.hdds.scm.OzoneClientConfig;
 import org.apache.hadoop.hdds.scm.XceiverClientFactory;
 import org.apache.hadoop.hdds.scm.container.common.helpers.ExcludeList;
 import org.apache.hadoop.hdds.scm.pipeline.PipelineID;
-import org.apache.hadoop.hdds.scm.storage.BufferPool;
 import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
 import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
 import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
@@ -58,7 +56,6 @@ public class BlockDataStreamOutputEntryPool {
   private final OmKeyArgs keyArgs;
   private final XceiverClientFactory xceiverClientFactory;
   private final String requestID;
-  private final BufferPool bufferPool;
   private OmMultipartCommitUploadPartInfo commitUploadPartInfo;
   private final long openID;
   private final ExcludeList excludeList;
@@ -86,13 +83,6 @@ public class BlockDataStreamOutputEntryPool {
     this.requestID = requestId;
     this.openID = openID;
     this.excludeList = new ExcludeList();
-
-    this.bufferPool =
-        new BufferPool(config.getStreamBufferSize(),
-            (int) (config.getStreamBufferMaxSize() / config
-                .getStreamBufferSize()),
-            ByteStringConversion
-                .createByteBufferConversion(unsafeByteBufferConversion));
   }
 
   /**
@@ -114,8 +104,6 @@ public class BlockDataStreamOutputEntryPool {
     config.setStreamBufferFlushDelay(false);
     requestID = null;
     int chunkSize = 0;
-    bufferPool = new BufferPool(chunkSize, 1);
-
     currentStreamIndex = 0;
     openID = -1;
     excludeList = new ExcludeList();
@@ -154,7 +142,6 @@ public class BlockDataStreamOutputEntryPool {
             .setPipeline(subKeyInfo.getPipeline())
             .setConfig(config)
             .setLength(subKeyInfo.getLength())
-            .setBufferPool(bufferPool)
             .setToken(subKeyInfo.getToken());
     streamEntries.add(builder.build());
   }
@@ -293,17 +280,10 @@ public class BlockDataStreamOutputEntryPool {
     return streamEntries.get(currentStreamIndex);
   }
 
-  long computeBufferData() {
-    return bufferPool.computeBufferData();
-  }
-
   void cleanup() {
     if (excludeList != null) {
       excludeList.clear();
     }
-    if (bufferPool != null) {
-      bufferPool.clearBufferPool();
-    }
 
     if (streamEntries != null) {
       streamEntries.clear();
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
index a9be116..c37f9cd 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
@@ -279,27 +279,7 @@ public class KeyDataStreamOutput implements ByteBufStreamOutput {
     }
     Pipeline pipeline = streamEntry.getPipeline();
     PipelineID pipelineId = pipeline.getId();
-    long totalSuccessfulFlushedData = streamEntry.getTotalAckDataLength();
-    //set the correct length for the current stream
-    streamEntry.setCurrentPosition(totalSuccessfulFlushedData);
-    long bufferedDataLen = blockDataStreamOutputEntryPool.computeBufferData();
-    if (containerExclusionException) {
-      LOG.debug(
-          "Encountered exception {}. The last committed block length is {}, "
-              + "uncommitted data length is {} retry count {}", exception,
-          totalSuccessfulFlushedData, bufferedDataLen, retryCount);
-    } else {
-      LOG.warn(
-          "Encountered exception {} on the pipeline {}. "
-              + "The last committed block length is {}, "
-              + "uncommitted data length is {} retry count {}", exception,
-          pipeline, totalSuccessfulFlushedData, bufferedDataLen, retryCount);
-    }
-    Preconditions.checkArgument(
-        bufferedDataLen <= config.getStreamBufferMaxSize());
-    Preconditions.checkArgument(
-        offset - blockDataStreamOutputEntryPool.getKeyLength() ==
-        bufferedDataLen);
+
     long containerId = streamEntry.getBlockID().getContainerID();
     Collection<DatanodeDetails> failedServers = streamEntry.getFailedServers();
     Preconditions.checkNotNull(failedServers);
@@ -337,13 +317,6 @@ public class KeyDataStreamOutput implements ByteBufStreamOutput {
       blockDataStreamOutputEntryPool
           .discardPreallocatedBlocks(-1, pipelineId);
     }
-    if (bufferedDataLen > 0) {
-      // If the data is still cached in the underlying stream, we need to
-      // allocate new block and write this data in the datanode.
-      handleRetry(exception, bufferedDataLen);
-      // reset the retryCount after handling the exception
-      retryCount = 0;
-    }
   }
 
   private void markStreamClosed() {

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[ozone] 01/09: HDDS-5366. [Ozone-Streaming] Implement stream method to ContainerStateMachine. (#2358). Contributed by mingchao zhao

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit 225a8027cb05c4b1a1dd8f7aaef3d708d2c73c39
Author: micah zhao <mi...@tencent.com>
AuthorDate: Wed Jun 23 23:20:27 2021 +0800

    HDDS-5366.  [Ozone-Streaming] Implement stream method to ContainerStateMachine. (#2358).  Contributed by mingchao zhao
---
 .../server/ratis/ContainerStateMachine.java        | 25 ++++++++++
 .../common/transport/server/ratis/LocalStream.java | 50 +++++++++++++++++++
 .../transport/server/ratis/StreamDataChannel.java  | 57 ++++++++++++++++++++++
 3 files changed, 132 insertions(+)

diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
index fda9979..30c21fe 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
@@ -23,10 +23,12 @@ import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.nio.file.Paths;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.CompletionException;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -498,6 +500,29 @@ public class ContainerStateMachine extends BaseStateMachine {
     return raftFuture;
   }
 
+  @Override
+  public CompletableFuture<DataStream> stream(RaftClientRequest request) {
+    return CompletableFuture.supplyAsync(() -> {
+      try {
+        ContainerCommandRequestProto requestProto =
+            getContainerCommandRequestProto(gid,
+                request.getMessage().getContent());
+        DispatcherContext context =
+            new DispatcherContext.Builder()
+                .setStage(DispatcherContext.WriteChunkStage.WRITE_DATA)
+                .setContainer2BCSIDMap(container2BCSIDMap)
+                .build();
+
+        ContainerCommandResponseProto response = runCommand(
+            requestProto, context);
+        String path = response.getMessage();
+        return new LocalStream(new StreamDataChannel(Paths.get(path)));
+      } catch (IOException e) {
+        throw new CompletionException("Failed to create data stream", e);
+      }
+    }, executor);
+  }
+
   private ExecutorService getChunkExecutor(WriteChunkRequestProto req) {
     int i = (int)(req.getBlockID().getLocalID() % chunkExecutors.size());
     return chunkExecutors.get(i);
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/LocalStream.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/LocalStream.java
new file mode 100644
index 0000000..baae013
--- /dev/null
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/LocalStream.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.hadoop.ozone.container.common.transport.server.ratis;
+
+import org.apache.ratis.statemachine.StateMachine;
+
+import java.io.IOException;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionException;
+
+class LocalStream implements StateMachine.DataStream {
+  private final StateMachine.DataChannel dataChannel;
+
+  LocalStream(StateMachine.DataChannel dataChannel) {
+    this.dataChannel = dataChannel;
+  }
+
+  @Override
+  public StateMachine.DataChannel getDataChannel() {
+    return dataChannel;
+  }
+
+  @Override
+  public CompletableFuture<?> cleanUp() {
+    return CompletableFuture.supplyAsync(() -> {
+      try {
+        dataChannel.close();
+        return true;
+      } catch (IOException e) {
+        throw new CompletionException("Failed to close data channel", e);
+      }
+    });
+  }
+}
\ No newline at end of file
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/StreamDataChannel.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/StreamDataChannel.java
new file mode 100644
index 0000000..3df66e2
--- /dev/null
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/StreamDataChannel.java
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.hadoop.ozone.container.common.transport.server.ratis;
+
+import org.apache.ratis.statemachine.StateMachine;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.file.Path;
+
+class StreamDataChannel implements StateMachine.DataChannel {
+  private final Path path;
+  private final RandomAccessFile randomAccessFile;
+
+  StreamDataChannel(Path path) throws FileNotFoundException {
+    this.path = path;
+    this.randomAccessFile = new RandomAccessFile(path.toFile(), "rw");
+  }
+
+  @Override
+  public void force(boolean metadata) throws IOException {
+    randomAccessFile.getChannel().force(metadata);
+  }
+
+  @Override
+  public int write(ByteBuffer src) throws IOException {
+    return randomAccessFile.getChannel().write(src);
+  }
+
+  @Override
+  public boolean isOpen() {
+    return randomAccessFile.getChannel().isOpen();
+  }
+
+  @Override
+  public void close() throws IOException {
+    randomAccessFile.close();
+  }
+}

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[ozone] 05/09: HDDS-5488. [Ozone-Streaming] Add a new BlockOutputStream/KeyOutputStream to support streaming api (#2495)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit b5bd21760d8c61f8759438b7001614f0c6b0ba26
Author: Kaijie Chen <ch...@kaijie.org>
AuthorDate: Thu Aug 12 18:09:38 2021 +0800

    HDDS-5488. [Ozone-Streaming] Add a new BlockOutputStream/KeyOutputStream to support streaming api (#2495)
---
 hadoop-hdds/client/pom.xml                         |   4 +
 .../apache/hadoop/hdds/scm/XceiverClientRatis.java |   5 +
 .../hdds/scm/storage/BlockDataStreamOutput.java    | 760 +++++++++++++++++++++
 .../hdds/scm/storage/ByteBufStreamOutput.java      |  58 ++
 .../apache/hadoop/ozone/client/OzoneBucket.java    |  19 +
 .../client/io/BlockDataStreamOutputEntry.java      | 294 ++++++++
 .../client/io/BlockDataStreamOutputEntryPool.java  | 324 +++++++++
 .../ozone/client/io/KeyDataStreamOutput.java       | 629 +++++++++++++++++
 .../ozone/client/io/OzoneDataStreamOutput.java     |  70 ++
 .../ozone/client/protocol/ClientProtocol.java      |  15 +
 .../apache/hadoop/ozone/client/rpc/RpcClient.java  |  62 ++
 .../client/rpc/TestBlockDataStreamOutput.java      | 181 +++++
 .../apache/hadoop/ozone/container/TestHelper.java  |  24 +-
 .../hadoop/ozone/shell/keys/PutKeyHandler.java     |  40 +-
 14 files changed, 2479 insertions(+), 6 deletions(-)

diff --git a/hadoop-hdds/client/pom.xml b/hadoop-hdds/client/pom.xml
index 4e75e42..482c067 100644
--- a/hadoop-hdds/client/pom.xml
+++ b/hadoop-hdds/client/pom.xml
@@ -66,6 +66,10 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <version>${spotbugs.version}</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>io.netty</groupId>
+      <artifactId>netty-buffer</artifactId>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientRatis.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientRatis.java
index 6982d41..f37cd1c 100644
--- a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientRatis.java
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientRatis.java
@@ -53,6 +53,7 @@ import org.apache.hadoop.hdds.tracing.TracingUtil;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import org.apache.ratis.client.RaftClient;
+import org.apache.ratis.client.api.DataStreamApi;
 import org.apache.ratis.grpc.GrpcTlsConfig;
 import org.apache.ratis.proto.RaftProtos;
 import org.apache.ratis.protocol.exceptions.GroupMismatchException;
@@ -359,4 +360,8 @@ public final class XceiverClientRatis extends XceiverClientSpi {
     throw new UnsupportedOperationException(
             "Operation Not supported for ratis client");
   }
+
+  public DataStreamApi getDataStreamApi() {
+    return this.getClient().getDataStreamApi();
+  }
 }
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
new file mode 100644
index 0000000..f658df1
--- /dev/null
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
@@ -0,0 +1,760 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.hadoop.hdds.scm.storage;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import org.apache.hadoop.hdds.client.BlockID;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos;
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.BlockData;
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ChunkInfo;
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.KeyValue;
+import org.apache.hadoop.hdds.ratis.ContainerCommandRequestMessage;
+import org.apache.hadoop.hdds.scm.OzoneClientConfig;
+import org.apache.hadoop.hdds.scm.XceiverClientFactory;
+import org.apache.hadoop.hdds.scm.XceiverClientRatis;
+import org.apache.hadoop.hdds.scm.XceiverClientReply;
+import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
+import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
+import org.apache.hadoop.ozone.common.Checksum;
+import org.apache.hadoop.ozone.common.ChecksumData;
+import org.apache.hadoop.ozone.common.ChunkBuffer;
+import org.apache.hadoop.ozone.common.OzoneChecksumException;
+import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.security.token.TokenIdentifier;
+import org.apache.ratis.client.api.DataStreamOutput;
+import org.apache.ratis.io.StandardWriteOption;
+import org.apache.ratis.protocol.DataStreamReply;
+import org.apache.ratis.thirdparty.com.google.protobuf.ByteString;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionException;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.concurrent.atomic.AtomicReference;
+
+import static org.apache.hadoop.hdds.scm.storage.ContainerProtocolCalls.putBlockAsync;
+
+/**
+ * An {@link ByteBufStreamOutput} used by the REST service in combination
+ * with the SCMClient to write the value of a key to a sequence
+ * of container chunks.  Writes are buffered locally and periodically written to
+ * the container as a new chunk.  In order to preserve the semantics that
+ * replacement of a pre-existing key is atomic, each instance of the stream has
+ * an internal unique identifier.  This unique identifier and a monotonically
+ * increasing chunk index form a composite key that is used as the chunk name.
+ * After all data is written, a putKey call creates or updates the corresponding
+ * container key, and this call includes the full list of chunks that make up
+ * the key data.  The list of chunks is updated all at once.  Therefore, a
+ * concurrent reader never can see an intermediate state in which different
+ * chunks of data from different versions of the key data are interleaved.
+ * This class encapsulates all state management for buffering and writing
+ * through to the container.
+ */
+public class BlockDataStreamOutput implements ByteBufStreamOutput {
+  public static final Logger LOG =
+      LoggerFactory.getLogger(BlockDataStreamOutput.class);
+  public static final String EXCEPTION_MSG =
+      "Unexpected Storage Container Exception: ";
+  private static final CompletableFuture[] EMPTY_FUTURE_ARRAY = {};
+
+  private AtomicReference<BlockID> blockID;
+
+  private final BlockData.Builder containerBlockData;
+  private XceiverClientFactory xceiverClientFactory;
+  private XceiverClientRatis xceiverClient;
+  private OzoneClientConfig config;
+
+  private int chunkIndex;
+  private final AtomicLong chunkOffset = new AtomicLong();
+  private final BufferPool bufferPool;
+  // The IOException will be set by response handling thread in case there is an
+  // exception received in the response. If the exception is set, the next
+  // request will fail upfront.
+  private final AtomicReference<IOException> ioException;
+  private final ExecutorService responseExecutor;
+
+  // the effective length of data flushed so far
+  private long totalDataFlushedLength;
+
+  // effective data write attempted so far for the block
+  private long writtenDataLength;
+
+  // List containing buffers for which the putBlock call will
+  // update the length in the datanodes. This list will just maintain
+  // references to the buffers in the BufferPool which will be cleared
+  // when the watchForCommit acknowledges a putBlock logIndex has been
+  // committed on all datanodes. This list will be a  place holder for buffers
+  // which got written between successive putBlock calls.
+  private List<ChunkBuffer> bufferList;
+
+  // This object will maintain the commitIndexes and byteBufferList in order
+  // Also, corresponding to the logIndex, the corresponding list of buffers will
+  // be released from the buffer pool.
+  private final CommitWatcher commitWatcher;
+
+  private final List<DatanodeDetails> failedServers;
+  private final Checksum checksum;
+
+  //number of buffers used before doing a flush/putBlock.
+  private int flushPeriod;
+  //bytes remaining to write in the current buffer.
+  private int currentBufferRemaining;
+  //current buffer allocated to write
+  private ChunkBuffer currentBuffer;
+  private final Token<? extends TokenIdentifier> token;
+  private final DataStreamOutput out;
+  private CompletableFuture<DataStreamReply> dataStreamCloseReply;
+  private List<CompletableFuture<DataStreamReply>> futures = new ArrayList<>();
+  private final long syncSize = 0; // TODO: disk sync is disabled for now
+  private long syncPosition = 0;
+
+  /**
+   * Creates a new BlockDataStreamOutput.
+   *
+   * @param blockID              block ID
+   * @param xceiverClientManager client manager that controls client
+   * @param pipeline             pipeline where block will be written
+   * @param bufferPool           pool of buffers
+   */
+  public BlockDataStreamOutput(
+      BlockID blockID,
+      XceiverClientFactory xceiverClientManager,
+      Pipeline pipeline,
+      BufferPool bufferPool,
+      OzoneClientConfig config,
+      Token<? extends TokenIdentifier> token
+  ) throws IOException {
+    this.xceiverClientFactory = xceiverClientManager;
+    this.config = config;
+    this.blockID = new AtomicReference<>(blockID);
+    KeyValue keyValue =
+        KeyValue.newBuilder().setKey("TYPE").setValue("KEY").build();
+    this.containerBlockData =
+        BlockData.newBuilder().setBlockID(blockID.getDatanodeBlockIDProtobuf())
+            .addMetadata(keyValue);
+    this.xceiverClient =
+        (XceiverClientRatis)xceiverClientManager.acquireClient(pipeline);
+    // Alternatively, stream setup can be delayed till the first chunk write.
+    this.out = setupStream();
+    this.bufferPool = bufferPool;
+    this.token = token;
+
+    //number of buffers used before doing a flush
+    refreshCurrentBuffer(bufferPool);
+    flushPeriod = (int) (config.getStreamBufferFlushSize() / config
+        .getStreamBufferSize());
+
+    Preconditions
+        .checkArgument(
+            (long) flushPeriod * config.getStreamBufferSize() == config
+                .getStreamBufferFlushSize());
+
+    // A single thread executor handle the responses of async requests
+    responseExecutor = Executors.newSingleThreadExecutor();
+    commitWatcher = new CommitWatcher(bufferPool, xceiverClient);
+    bufferList = null;
+    totalDataFlushedLength = 0;
+    writtenDataLength = 0;
+    failedServers = new ArrayList<>(0);
+    ioException = new AtomicReference<>(null);
+    checksum = new Checksum(config.getChecksumType(),
+        config.getBytesPerChecksum());
+  }
+
+  private DataStreamOutput setupStream() throws IOException {
+    // Execute a dummy WriteChunk request to get the path of the target file,
+    // but does NOT write any data to it.
+    ContainerProtos.WriteChunkRequestProto.Builder writeChunkRequest =
+        ContainerProtos.WriteChunkRequestProto.newBuilder()
+            .setBlockID(blockID.get().getDatanodeBlockIDProtobuf());
+
+    String id = xceiverClient.getPipeline().getFirstNode().getUuidString();
+    ContainerProtos.ContainerCommandRequestProto.Builder builder =
+        ContainerProtos.ContainerCommandRequestProto.newBuilder()
+            .setCmdType(ContainerProtos.Type.StreamInit)
+            .setContainerID(blockID.get().getContainerID())
+            .setDatanodeUuid(id).setWriteChunk(writeChunkRequest);
+
+    ContainerCommandRequestMessage message =
+        ContainerCommandRequestMessage.toMessage(builder.build(), null);
+
+    return Preconditions.checkNotNull(xceiverClient.getDataStreamApi())
+        .stream(message.getContent().asReadOnlyByteBuffer());
+  }
+
+  private void refreshCurrentBuffer(BufferPool pool) {
+    currentBuffer = pool.getCurrentBuffer();
+    currentBufferRemaining =
+        currentBuffer != null ? currentBuffer.remaining() : 0;
+  }
+
+  public BlockID getBlockID() {
+    return blockID.get();
+  }
+
+  public long getTotalAckDataLength() {
+    return commitWatcher.getTotalAckDataLength();
+  }
+
+  public long getWrittenDataLength() {
+    return writtenDataLength;
+  }
+
+  public List<DatanodeDetails> getFailedServers() {
+    return failedServers;
+  }
+
+  @VisibleForTesting
+  public XceiverClientRatis getXceiverClient() {
+    return xceiverClient;
+  }
+
+  @VisibleForTesting
+  public long getTotalDataFlushedLength() {
+    return totalDataFlushedLength;
+  }
+
+  @VisibleForTesting
+  public BufferPool getBufferPool() {
+    return bufferPool;
+  }
+
+  public IOException getIoException() {
+    return ioException.get();
+  }
+
+  @VisibleForTesting
+  public Map<Long, List<ChunkBuffer>> getCommitIndex2flushedDataMap() {
+    return commitWatcher.getCommitIndex2flushedDataMap();
+  }
+
+  @Override
+  public void write(ByteBuf b) throws IOException {
+    checkOpen();
+    if (b == null) {
+      throw new NullPointerException();
+    }
+    int off = b.readerIndex();
+    int len = b.readableBytes();
+
+    while (len > 0) {
+      allocateNewBufferIfNeeded();
+      final int writeLen = Math.min(currentBufferRemaining, len);
+      // TODO: avoid buffer copy here
+      currentBuffer.put(b.nioBuffer(off, writeLen));
+      currentBufferRemaining -= writeLen;
+      writeChunkIfNeeded();
+      off += writeLen;
+      len -= writeLen;
+      writtenDataLength += writeLen;
+      doFlushOrWatchIfNeeded();
+    }
+  }
+
+  private void writeChunkIfNeeded() throws IOException {
+    if (currentBufferRemaining == 0) {
+      writeChunk(currentBuffer);
+    }
+  }
+
+  private void doFlushOrWatchIfNeeded() throws IOException {
+    if (currentBufferRemaining == 0) {
+      if (bufferPool.getNumberOfUsedBuffers() % flushPeriod == 0) {
+        updateFlushLength();
+        executePutBlock(false, false);
+      }
+      // Data in the bufferPool can not exceed streamBufferMaxSize
+      if (bufferPool.getNumberOfUsedBuffers() == bufferPool.getCapacity()) {
+        handleFullBuffer();
+      }
+    }
+  }
+
+  private void allocateNewBufferIfNeeded() {
+    if (currentBufferRemaining == 0) {
+      currentBuffer = bufferPool.allocateBuffer(config.getBufferIncrement());
+      currentBufferRemaining = currentBuffer.remaining();
+    }
+  }
+
+  private void updateFlushLength() {
+    totalDataFlushedLength = writtenDataLength;
+  }
+
+  private boolean isBufferPoolFull() {
+    return bufferPool.computeBufferData() == config.getStreamBufferMaxSize();
+  }
+
+  /**
+   * Will be called on the retryPath in case closedContainerException/
+   * TimeoutException.
+   * @param len length of data to write
+   * @throws IOException if error occurred
+   */
+
+  // In this case, the data is already cached in the currentBuffer.
+  public void writeOnRetry(long len) throws IOException {
+    if (len == 0) {
+      return;
+    }
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Retrying write length {} for blockID {}", len, blockID);
+    }
+    Preconditions.checkArgument(len <= config.getStreamBufferMaxSize());
+    int count = 0;
+    while (len > 0) {
+      ChunkBuffer buffer = bufferPool.getBuffer(count);
+      long writeLen = Math.min(buffer.position(), len);
+      if (!buffer.hasRemaining()) {
+        writeChunk(buffer);
+      }
+      len -= writeLen;
+      count++;
+      writtenDataLength += writeLen;
+      // we should not call isBufferFull/shouldFlush here.
+      // The buffer might already be full as whole data is already cached in
+      // the buffer. We should just validate
+      // if we wrote data of size streamBufferMaxSize/streamBufferFlushSize to
+      // call for handling full buffer/flush buffer condition.
+      if (writtenDataLength % config.getStreamBufferFlushSize() == 0) {
+        // reset the position to zero as now we will be reading the
+        // next buffer in the list
+        updateFlushLength();
+        executePutBlock(false, false);
+      }
+      if (writtenDataLength == config.getStreamBufferMaxSize()) {
+        handleFullBuffer();
+      }
+    }
+  }
+
+  /**
+   * This is a blocking call. It will wait for the flush till the commit index
+   * at the head of the commitIndex2flushedDataMap gets replicated to all or
+   * majority.
+   * @throws IOException
+   */
+  private void handleFullBuffer() throws IOException {
+    try {
+      checkOpen();
+      if (!commitWatcher.getFutureMap().isEmpty()) {
+        waitOnFlushFutures();
+      }
+    } catch (ExecutionException e) {
+      handleExecutionException(e);
+    } catch (InterruptedException ex) {
+      Thread.currentThread().interrupt();
+      handleInterruptedException(ex, true);
+    }
+    watchForCommit(true);
+  }
+
+
+  // It may happen that once the exception is encountered , we still might
+  // have successfully flushed up to a certain index. Make sure the buffers
+  // only contain data which have not been sufficiently replicated
+  private void adjustBuffersOnException() {
+    commitWatcher.releaseBuffersOnException();
+    refreshCurrentBuffer(bufferPool);
+  }
+
+  /**
+   * calls watchForCommit API of the Ratis Client. For Standalone client,
+   * it is a no op.
+   * @param bufferFull flag indicating whether bufferFull condition is hit or
+   *              its called as part flush/close
+   * @return minimum commit index replicated to all nodes
+   * @throws IOException IOException in case watch gets timed out
+   */
+  private void watchForCommit(boolean bufferFull) throws IOException {
+    checkOpen();
+    try {
+      XceiverClientReply reply = bufferFull ?
+          commitWatcher.watchOnFirstIndex() : commitWatcher.watchOnLastIndex();
+      if (reply != null) {
+        List<DatanodeDetails> dnList = reply.getDatanodes();
+        if (!dnList.isEmpty()) {
+          Pipeline pipe = xceiverClient.getPipeline();
+
+          LOG.warn("Failed to commit BlockId {} on {}. Failed nodes: {}",
+              blockID, pipe, dnList);
+          failedServers.addAll(dnList);
+        }
+      }
+    } catch (IOException ioe) {
+      setIoException(ioe);
+      throw getIoException();
+    }
+    refreshCurrentBuffer(bufferPool);
+
+  }
+
+  /**
+   * @param close whether putBlock is happening as part of closing the stream
+   * @param force true if no data was written since most recent putBlock and
+   *            stream is being closed
+   */
+  private CompletableFuture<ContainerProtos.
+      ContainerCommandResponseProto> executePutBlock(boolean close,
+      boolean force) throws IOException {
+    checkOpen();
+    long flushPos = totalDataFlushedLength;
+    final List<ChunkBuffer> byteBufferList;
+    if (!force) {
+      Preconditions.checkNotNull(bufferList);
+      byteBufferList = bufferList;
+      bufferList = null;
+      Preconditions.checkNotNull(byteBufferList);
+    } else {
+      byteBufferList = null;
+    }
+
+    try {
+      CompletableFuture.allOf(futures.toArray(EMPTY_FUTURE_ARRAY)).get();
+    } catch (Exception e) {
+      LOG.warn("Failed to write all chunks through stream: " + e);
+      throw new IOException(e);
+    }
+    if (close) {
+      dataStreamCloseReply = out.closeAsync();
+    }
+
+    CompletableFuture<ContainerProtos.
+        ContainerCommandResponseProto> flushFuture = null;
+    try {
+      BlockData blockData = containerBlockData.build();
+      XceiverClientReply asyncReply =
+          putBlockAsync(xceiverClient, blockData, close, token);
+      CompletableFuture<ContainerProtos.ContainerCommandResponseProto> future =
+          asyncReply.getResponse();
+      flushFuture = future.thenApplyAsync(e -> {
+        try {
+          validateResponse(e);
+        } catch (IOException sce) {
+          throw new CompletionException(sce);
+        }
+        // if the ioException is not set, putBlock is successful
+        if (getIoException() == null && !force) {
+          BlockID responseBlockID = BlockID.getFromProtobuf(
+              e.getPutBlock().getCommittedBlockLength().getBlockID());
+          Preconditions.checkState(blockID.get().getContainerBlockID()
+              .equals(responseBlockID.getContainerBlockID()));
+          // updates the bcsId of the block
+          blockID.set(responseBlockID);
+          if (LOG.isDebugEnabled()) {
+            LOG.debug(
+                "Adding index " + asyncReply.getLogIndex() + " commitMap size "
+                    + commitWatcher.getCommitInfoMapSize() + " flushLength "
+                    + flushPos + " numBuffers " + byteBufferList.size()
+                    + " blockID " + blockID + " bufferPool size" + bufferPool
+                    .getSize() + " currentBufferIndex " + bufferPool
+                    .getCurrentBufferIndex());
+          }
+          // for standalone protocol, logIndex will always be 0.
+          commitWatcher
+              .updateCommitInfoMap(asyncReply.getLogIndex(), byteBufferList);
+        }
+        return e;
+      }, responseExecutor).exceptionally(e -> {
+        if (LOG.isDebugEnabled()) {
+          LOG.debug("putBlock failed for blockID {} with exception {}",
+              blockID, e.getLocalizedMessage());
+        }
+        CompletionException ce = new CompletionException(e);
+        setIoException(ce);
+        throw ce;
+      });
+    } catch (IOException | ExecutionException e) {
+      throw new IOException(EXCEPTION_MSG + e.toString(), e);
+    } catch (InterruptedException ex) {
+      Thread.currentThread().interrupt();
+      handleInterruptedException(ex, false);
+    }
+    commitWatcher.getFutureMap().put(flushPos, flushFuture);
+    return flushFuture;
+  }
+
+  @Override
+  public void flush() throws IOException {
+    if (xceiverClientFactory != null && xceiverClient != null
+        && bufferPool != null && bufferPool.getSize() > 0
+        && (!config.isStreamBufferFlushDelay() ||
+            writtenDataLength - totalDataFlushedLength
+                >= config.getStreamBufferSize())) {
+      try {
+        handleFlush(false);
+      } catch (ExecutionException e) {
+        // just set the exception here as well in order to maintain sanctity of
+        // ioException field
+        handleExecutionException(e);
+      } catch (InterruptedException ex) {
+        Thread.currentThread().interrupt();
+        handleInterruptedException(ex, true);
+      }
+    }
+  }
+
+  private void writeChunk(ChunkBuffer buffer)
+      throws IOException {
+    // This data in the buffer will be pushed to datanode and a reference will
+    // be added to the bufferList. Once putBlock gets executed, this list will
+    // be marked null. Hence, during first writeChunk call after every putBlock
+    // call or during the first call to writeChunk here, the list will be null.
+
+    if (bufferList == null) {
+      bufferList = new ArrayList<>();
+    }
+    bufferList.add(buffer);
+    writeChunkToContainer(buffer.duplicate(0, buffer.position()));
+  }
+
+  /**
+   * @param close whether the flush is happening as part of closing the stream
+   */
+  private void handleFlush(boolean close)
+      throws IOException, InterruptedException, ExecutionException {
+    checkOpen();
+    // flush the last chunk data residing on the currentBuffer
+    if (totalDataFlushedLength < writtenDataLength) {
+      refreshCurrentBuffer(bufferPool);
+      Preconditions.checkArgument(currentBuffer.position() > 0);
+      if (currentBuffer.hasRemaining()) {
+        writeChunk(currentBuffer);
+      }
+      // This can be a partially filled chunk. Since we are flushing the buffer
+      // here, we just limit this buffer to the current position. So that next
+      // write will happen in new buffer
+      updateFlushLength();
+      executePutBlock(close, false);
+    } else if (close) {
+      // forcing an "empty" putBlock if stream is being closed without new
+      // data since latest flush - we need to send the "EOF" flag
+      executePutBlock(true, true);
+    }
+    waitOnFlushFutures();
+    watchForCommit(false);
+    // just check again if the exception is hit while waiting for the
+    // futures to ensure flush has indeed succeeded
+
+    // irrespective of whether the commitIndex2flushedDataMap is empty
+    // or not, ensure there is no exception set
+    checkOpen();
+  }
+
+  @Override
+  public void close() throws IOException {
+    if (xceiverClientFactory != null && xceiverClient != null
+        && bufferPool != null && bufferPool.getSize() > 0) {
+      try {
+        handleFlush(true);
+        dataStreamCloseReply.get();
+      } catch (ExecutionException e) {
+        handleExecutionException(e);
+      } catch (InterruptedException ex) {
+        Thread.currentThread().interrupt();
+        handleInterruptedException(ex, true);
+      } finally {
+        cleanup(false);
+      }
+      // TODO: Turn the below buffer empty check on when Standalone pipeline
+      // is removed in the write path in tests
+      // Preconditions.checkArgument(buffer.position() == 0);
+      // bufferPool.checkBufferPoolEmpty();
+
+    }
+  }
+
+  private void waitOnFlushFutures()
+      throws InterruptedException, ExecutionException {
+    CompletableFuture<Void> combinedFuture = CompletableFuture.allOf(
+        commitWatcher.getFutureMap().values().toArray(
+            new CompletableFuture[commitWatcher.getFutureMap().size()]));
+    // wait for all the transactions to complete
+    combinedFuture.get();
+  }
+
+  private void validateResponse(
+      ContainerProtos.ContainerCommandResponseProto responseProto)
+      throws IOException {
+    try {
+      // if the ioException is already set, it means a prev request has failed
+      // just throw the exception. The current operation will fail with the
+      // original error
+      IOException exception = getIoException();
+      if (exception != null) {
+        throw exception;
+      }
+      ContainerProtocolCalls.validateContainerResponse(responseProto);
+    } catch (StorageContainerException sce) {
+      setIoException(sce);
+      throw sce;
+    }
+  }
+
+
+  private void setIoException(Exception e) {
+    IOException ioe = getIoException();
+    if (ioe == null) {
+      IOException exception =  new IOException(EXCEPTION_MSG + e.toString(), e);
+      ioException.compareAndSet(null, exception);
+    } else {
+      LOG.debug("Previous request had already failed with " + ioe.toString()
+          + " so subsequent request also encounters"
+          + " Storage Container Exception ", e);
+    }
+  }
+
+  public void cleanup(boolean invalidateClient) {
+    if (xceiverClientFactory != null) {
+      xceiverClientFactory.releaseClient(xceiverClient, invalidateClient);
+    }
+    xceiverClientFactory = null;
+    xceiverClient = null;
+    commitWatcher.cleanup();
+    if (bufferList !=  null) {
+      bufferList.clear();
+    }
+    bufferList = null;
+    responseExecutor.shutdown();
+  }
+
+  /**
+   * Checks if the stream is open or exception has occurred.
+   * If not, throws an exception.
+   *
+   * @throws IOException if stream is closed
+   */
+  private void checkOpen() throws IOException {
+    if (isClosed()) {
+      throw new IOException("BlockDataStreamOutput has been closed.");
+    } else if (getIoException() != null) {
+      adjustBuffersOnException();
+      throw getIoException();
+    }
+  }
+
+  public boolean isClosed() {
+    return xceiverClient == null;
+  }
+
+  private boolean needSync(long position) {
+    if (syncSize > 0) {
+      // TODO: or position >= fileLength
+      if (position - syncPosition >= syncSize) {
+        syncPosition = position;
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Writes buffered data as a new chunk to the container and saves chunk
+   * information to be used later in putKey call.
+   *
+   * @throws IOException if there is an I/O error while performing the call
+   * @throws OzoneChecksumException if there is an error while computing
+   * checksum
+   */
+  private void writeChunkToContainer(ChunkBuffer chunk) throws IOException {
+    int effectiveChunkSize = chunk.remaining();
+    final long offset = chunkOffset.getAndAdd(effectiveChunkSize);
+    final ByteString data = chunk.toByteString(
+        bufferPool.byteStringConversion());
+    ChecksumData checksumData = checksum.computeChecksum(chunk);
+    ChunkInfo chunkInfo = ChunkInfo.newBuilder()
+        .setChunkName(blockID.get().getLocalID() + "_chunk_" + ++chunkIndex)
+        .setOffset(offset)
+        .setLen(effectiveChunkSize)
+        .setChecksumData(checksumData.getProtoBufMessage())
+        .build();
+
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Writing chunk {} length {} at offset {}",
+          chunkInfo.getChunkName(), effectiveChunkSize, offset);
+    }
+
+    CompletableFuture<DataStreamReply> future =
+        (needSync(offset + effectiveChunkSize) ?
+        out.writeAsync(data.asReadOnlyByteBuffer(), StandardWriteOption.SYNC) :
+        out.writeAsync(data.asReadOnlyByteBuffer()))
+        .whenCompleteAsync((r, e) -> {
+          if (e != null || !r.isSuccess()) {
+            if (e == null) {
+              e = new IOException("result is not success");
+            }
+            String msg = "Failed to write chunk " + chunkInfo.getChunkName() +
+                " " + "into block " + blockID;
+            LOG.debug("{}, exception: {}", msg, e.getLocalizedMessage());
+            CompletionException ce = new CompletionException(msg, e);
+            setIoException(ce);
+            throw ce;
+          }
+        }, responseExecutor);
+
+    futures.add(future);
+    containerBlockData.addChunks(chunkInfo);
+  }
+
+  @VisibleForTesting
+  public void setXceiverClient(XceiverClientRatis xceiverClient) {
+    this.xceiverClient = xceiverClient;
+  }
+
+  /**
+   * Handles InterruptedExecution.
+   *
+   * @param ex
+   * @param processExecutionException is optional, if passed as TRUE, then
+   * handle ExecutionException else skip it.
+   * @throws IOException
+   */
+  private void handleInterruptedException(Exception ex,
+      boolean processExecutionException)
+      throws IOException {
+    LOG.error("Command execution was interrupted.");
+    if(processExecutionException) {
+      handleExecutionException(ex);
+    } else {
+      throw new IOException(EXCEPTION_MSG + ex.toString(), ex);
+    }
+  }
+
+  /**
+   * Handles ExecutionException by adjusting buffers.
+   * @param ex
+   * @throws IOException
+   */
+  private void handleExecutionException(Exception ex) throws IOException {
+    setIoException(ex);
+    adjustBuffersOnException();
+    throw getIoException();
+  }
+}
diff --git a/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java
new file mode 100644
index 0000000..7f40737
--- /dev/null
+++ b/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ByteBufStreamOutput.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.hadoop.hdds.scm.storage;
+
+import io.netty.buffer.ByteBuf;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+/**
+* This interface is for writing an output stream of ByteBuffers.
+* An ByteBufStreamOutput accepts Netty ByteBuf and sends them to some sink.
+*/
+public interface ByteBufStreamOutput extends Closeable {
+  /**
+   * Try to write all the bytes in ByteBuf b to DataStream.
+   *
+   * @param b the data.
+   * @exception IOException if an I/O error occurs.
+   */
+  void write(ByteBuf b) throws IOException;
+
+  /**
+   * Try to write the [off:off + len) slice in ByteBuf b to DataStream.
+   *
+   * @param b the data.
+   * @param off the start offset in the data.
+   * @param len the number of bytes to write.
+   * @exception  IOException  if an I/O error occurs.
+   */
+  default void write(ByteBuf b, int off, int len) throws IOException {
+    write(b.slice(off, len));
+  }
+
+  /**
+   * Flushes this DataStream output and forces any buffered output bytes
+   * to be written out.
+   *
+   * @exception  IOException  if an I/O error occurs.
+   */
+  void flush() throws IOException;
+}
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/OzoneBucket.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/OzoneBucket.java
index 8a8cde9..61cbb69 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/OzoneBucket.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/OzoneBucket.java
@@ -30,6 +30,7 @@ import org.apache.hadoop.hdds.client.ReplicationFactor;
 import org.apache.hadoop.hdds.client.ReplicationType;
 import org.apache.hadoop.hdds.scm.client.HddsClientUtils;
 import org.apache.hadoop.ozone.OmUtils;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
 import org.apache.hadoop.ozone.client.io.OzoneInputStream;
 import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
 import org.apache.hadoop.ozone.client.protocol.ClientProtocol;
@@ -529,6 +530,24 @@ public class OzoneBucket extends WithMetadata {
   }
 
   /**
+   * Creates a new key in the bucket.
+   *
+   * @param key               Name of the key to be created.
+   * @param size              Size of the data the key will point to.
+   * @param replicationConfig Replication configuration.
+   * @return OzoneDataStreamOutput to which the data has to be written.
+   * @throws IOException
+   */
+  public OzoneDataStreamOutput createStreamKey(String key, long size,
+      ReplicationConfig replicationConfig,
+      Map<String, String> keyMetadata)
+      throws IOException {
+    return proxy
+        .createStreamKey(volumeName, name, key, size, replicationConfig,
+            keyMetadata);
+  }
+
+  /**
    * Reads an existing key from the bucket.
    *
    * @param key Name of the key to be read.
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
new file mode 100644
index 0000000..6954742
--- /dev/null
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntry.java
@@ -0,0 +1,294 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.apache.hadoop.ozone.client.io;
+
+import com.google.common.annotations.VisibleForTesting;
+import io.netty.buffer.ByteBuf;
+import org.apache.hadoop.hdds.client.BlockID;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.scm.OzoneClientConfig;
+import org.apache.hadoop.hdds.scm.XceiverClientFactory;
+import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
+import org.apache.hadoop.hdds.scm.storage.BlockDataStreamOutput;
+import org.apache.hadoop.hdds.scm.storage.BufferPool;
+import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.hdds.security.token.OzoneBlockTokenIdentifier;
+import org.apache.hadoop.security.token.Token;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Collections;
+
+/**
+ * Helper class used inside {@link BlockDataStreamOutput}.
+ * */
+public final class BlockDataStreamOutputEntry
+    implements ByteBufStreamOutput {
+
+  private final OzoneClientConfig config;
+  private ByteBufStreamOutput byteBufStreamOutput;
+  private BlockID blockID;
+  private final String key;
+  private final XceiverClientFactory xceiverClientManager;
+  private final Pipeline pipeline;
+  // total number of bytes that should be written to this stream
+  private final long length;
+  // the current position of this stream 0 <= currentPosition < length
+  private long currentPosition;
+  private final Token<OzoneBlockTokenIdentifier> token;
+
+  private BufferPool bufferPool;
+
+  @SuppressWarnings({"parameternumber", "squid:S00107"})
+  private BlockDataStreamOutputEntry(
+      BlockID blockID, String key,
+      XceiverClientFactory xceiverClientManager,
+      Pipeline pipeline,
+      long length,
+      BufferPool bufferPool,
+      Token<OzoneBlockTokenIdentifier> token,
+      OzoneClientConfig config
+  ) {
+    this.config = config;
+    this.byteBufStreamOutput = null;
+    this.blockID = blockID;
+    this.key = key;
+    this.xceiverClientManager = xceiverClientManager;
+    this.pipeline = pipeline;
+    this.token = token;
+    this.length = length;
+    this.currentPosition = 0;
+    this.bufferPool = bufferPool;
+  }
+
+  long getLength() {
+    return length;
+  }
+
+  Token<OzoneBlockTokenIdentifier> getToken() {
+    return token;
+  }
+
+  long getRemaining() {
+    return length - currentPosition;
+  }
+
+  /**
+   * BlockDataStreamOutput is initialized in this function. This makes sure that
+   * xceiverClient initialization is not done during preallocation and only
+   * done when data is written.
+   * @throws IOException if xceiverClient initialization fails
+   */
+  private void checkStream() throws IOException {
+    if (this.byteBufStreamOutput == null) {
+      this.byteBufStreamOutput =
+          new BlockDataStreamOutput(blockID, xceiverClientManager,
+              pipeline, bufferPool, config, token);
+    }
+  }
+
+  @Override
+  public void write(ByteBuf b) throws IOException {
+    checkStream();
+    final int len = b.readableBytes();
+    byteBufStreamOutput.write(b);
+    this.currentPosition += len;
+  }
+
+  @Override
+  public void flush() throws IOException {
+    if (this.byteBufStreamOutput != null) {
+      this.byteBufStreamOutput.flush();
+    }
+  }
+
+  @Override
+  public void close() throws IOException {
+    if (this.byteBufStreamOutput != null) {
+      this.byteBufStreamOutput.close();
+      // after closing the chunkOutPutStream, blockId would have been
+      // reconstructed with updated bcsId
+      this.blockID =
+          ((BlockDataStreamOutput) byteBufStreamOutput).getBlockID();
+    }
+  }
+
+  boolean isClosed() {
+    if (byteBufStreamOutput != null) {
+      return  ((BlockDataStreamOutput) byteBufStreamOutput).isClosed();
+    }
+    return false;
+  }
+
+  long getTotalAckDataLength() {
+    if (byteBufStreamOutput != null) {
+      BlockDataStreamOutput out =
+          (BlockDataStreamOutput) this.byteBufStreamOutput;
+      blockID = out.getBlockID();
+      return out.getTotalAckDataLength();
+    } else {
+      // For a pre allocated block for which no write has been initiated,
+      // the ByteBufStreamOutput will be null here.
+      // In such cases, the default blockCommitSequenceId will be 0
+      return 0;
+    }
+  }
+
+  Collection<DatanodeDetails> getFailedServers() {
+    if (byteBufStreamOutput != null) {
+      BlockDataStreamOutput out =
+          (BlockDataStreamOutput) this.byteBufStreamOutput;
+      return out.getFailedServers();
+    }
+    return Collections.emptyList();
+  }
+
+  long getWrittenDataLength() {
+    if (byteBufStreamOutput != null) {
+      BlockDataStreamOutput out =
+          (BlockDataStreamOutput) this.byteBufStreamOutput;
+      return out.getWrittenDataLength();
+    } else {
+      // For a pre allocated block for which no write has been initiated,
+      // the ByteBufStreamOutput will be null here.
+      // In such cases, the default blockCommitSequenceId will be 0
+      return 0;
+    }
+  }
+
+  void cleanup(boolean invalidateClient) throws IOException {
+    checkStream();
+    BlockDataStreamOutput out =
+        (BlockDataStreamOutput) this.byteBufStreamOutput;
+    out.cleanup(invalidateClient);
+
+  }
+
+  void writeOnRetry(long len) throws IOException {
+    checkStream();
+    BlockDataStreamOutput out =
+        (BlockDataStreamOutput) this.byteBufStreamOutput;
+    out.writeOnRetry(len);
+    this.currentPosition += len;
+
+  }
+
+  /**
+   * Builder class for BlockDataStreamOutputEntry.
+   * */
+  public static class Builder {
+
+    private BlockID blockID;
+    private String key;
+    private XceiverClientFactory xceiverClientManager;
+    private Pipeline pipeline;
+    private long length;
+    private BufferPool bufferPool;
+    private Token<OzoneBlockTokenIdentifier> token;
+    private OzoneClientConfig config;
+
+    public Builder setBlockID(BlockID bID) {
+      this.blockID = bID;
+      return this;
+    }
+
+    public Builder setKey(String keys) {
+      this.key = keys;
+      return this;
+    }
+
+    public Builder setXceiverClientManager(
+        XceiverClientFactory
+        xClientManager) {
+      this.xceiverClientManager = xClientManager;
+      return this;
+    }
+
+    public Builder setPipeline(Pipeline ppln) {
+      this.pipeline = ppln;
+      return this;
+    }
+
+
+    public Builder setLength(long len) {
+      this.length = len;
+      return this;
+    }
+
+
+    public Builder setBufferPool(BufferPool pool) {
+      this.bufferPool = pool;
+      return this;
+    }
+
+    public Builder setConfig(OzoneClientConfig clientConfig) {
+      this.config = clientConfig;
+      return this;
+    }
+
+    public Builder setToken(Token<OzoneBlockTokenIdentifier> bToken) {
+      this.token = bToken;
+      return this;
+    }
+
+    public BlockDataStreamOutputEntry build() {
+      return new BlockDataStreamOutputEntry(blockID,
+          key,
+          xceiverClientManager,
+          pipeline,
+          length,
+          bufferPool,
+          token, config);
+    }
+  }
+
+  @VisibleForTesting
+  public ByteBufStreamOutput getByteBufStreamOutput() {
+    return byteBufStreamOutput;
+  }
+
+  public BlockID getBlockID() {
+    return blockID;
+  }
+
+  public String getKey() {
+    return key;
+  }
+
+  public XceiverClientFactory getXceiverClientManager() {
+    return xceiverClientManager;
+  }
+
+  public Pipeline getPipeline() {
+    return pipeline;
+  }
+
+  public long getCurrentPosition() {
+    return currentPosition;
+  }
+
+  public BufferPool getBufferPool() {
+    return bufferPool;
+  }
+
+  public void setCurrentPosition(long curPosition) {
+    this.currentPosition = curPosition;
+  }
+}
+
+
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java
new file mode 100644
index 0000000..94c505f
--- /dev/null
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockDataStreamOutputEntryPool.java
@@ -0,0 +1,324 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.apache.hadoop.ozone.client.io;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import org.apache.hadoop.hdds.client.ReplicationConfig;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.scm.ByteStringConversion;
+import org.apache.hadoop.hdds.scm.OzoneClientConfig;
+import org.apache.hadoop.hdds.scm.XceiverClientFactory;
+import org.apache.hadoop.hdds.scm.container.common.helpers.ExcludeList;
+import org.apache.hadoop.hdds.scm.pipeline.PipelineID;
+import org.apache.hadoop.hdds.scm.storage.BufferPool;
+import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
+import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfoGroup;
+import org.apache.hadoop.ozone.om.helpers.OmMultipartCommitUploadPartInfo;
+import org.apache.hadoop.ozone.om.protocol.OzoneManagerProtocol;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ * This class manages the stream entries list and handles block allocation
+ * from OzoneManager.
+ */
+public class BlockDataStreamOutputEntryPool {
+
+  public static final Logger LOG =
+      LoggerFactory.getLogger(BlockDataStreamOutputEntryPool.class);
+
+  private final List<BlockDataStreamOutputEntry> streamEntries;
+  private final OzoneClientConfig config;
+  private int currentStreamIndex;
+  private final OzoneManagerProtocol omClient;
+  private final OmKeyArgs keyArgs;
+  private final XceiverClientFactory xceiverClientFactory;
+  private final String requestID;
+  private final BufferPool bufferPool;
+  private OmMultipartCommitUploadPartInfo commitUploadPartInfo;
+  private final long openID;
+  private final ExcludeList excludeList;
+
+  @SuppressWarnings({"parameternumber", "squid:S00107"})
+  public BlockDataStreamOutputEntryPool(
+      OzoneClientConfig config,
+      OzoneManagerProtocol omClient,
+      String requestId, ReplicationConfig replicationConfig,
+      String uploadID, int partNumber,
+      boolean isMultipart, OmKeyInfo info,
+      boolean unsafeByteBufferConversion,
+      XceiverClientFactory xceiverClientFactory, long openID
+  ) {
+    this.config = config;
+    this.xceiverClientFactory = xceiverClientFactory;
+    streamEntries = new ArrayList<>();
+    currentStreamIndex = 0;
+    this.omClient = omClient;
+    this.keyArgs = new OmKeyArgs.Builder().setVolumeName(info.getVolumeName())
+        .setBucketName(info.getBucketName()).setKeyName(info.getKeyName())
+        .setReplicationConfig(replicationConfig).setDataSize(info.getDataSize())
+        .setIsMultipartKey(isMultipart).setMultipartUploadID(uploadID)
+        .setMultipartUploadPartNumber(partNumber).build();
+    this.requestID = requestId;
+    this.openID = openID;
+    this.excludeList = new ExcludeList();
+
+    this.bufferPool =
+        new BufferPool(config.getStreamBufferSize(),
+            (int) (config.getStreamBufferMaxSize() / config
+                .getStreamBufferSize()),
+            ByteStringConversion
+                .createByteBufferConversion(unsafeByteBufferConversion));
+  }
+
+  /**
+   * A constructor for testing purpose only.
+   *
+   * @see KeyDataStreamOutput#KeyDataStreamOutput()
+   */
+  @VisibleForTesting
+  BlockDataStreamOutputEntryPool() {
+    streamEntries = new ArrayList<>();
+    omClient = null;
+    keyArgs = null;
+    xceiverClientFactory = null;
+    config =
+        new OzoneConfiguration().getObject(OzoneClientConfig.class);
+    config.setStreamBufferSize(0);
+    config.setStreamBufferMaxSize(0);
+    config.setStreamBufferFlushSize(0);
+    config.setStreamBufferFlushDelay(false);
+    requestID = null;
+    int chunkSize = 0;
+    bufferPool = new BufferPool(chunkSize, 1);
+
+    currentStreamIndex = 0;
+    openID = -1;
+    excludeList = new ExcludeList();
+  }
+
+  /**
+   * When a key is opened, it is possible that there are some blocks already
+   * allocated to it for this open session. In this case, to make use of these
+   * blocks, we need to add these blocks to stream entries. But, a key's version
+   * also includes blocks from previous versions, we need to avoid adding these
+   * old blocks to stream entries, because these old blocks should not be picked
+   * for write. To do this, the following method checks that, only those
+   * blocks created in this particular open version are added to stream entries.
+   *
+   * @param version the set of blocks that are pre-allocated.
+   * @param openVersion the version corresponding to the pre-allocation.
+   * @throws IOException
+   */
+  public void addPreallocateBlocks(OmKeyLocationInfoGroup version,
+      long openVersion) throws IOException {
+    // server may return any number of blocks, (0 to any)
+    // only the blocks allocated in this open session (block createVersion
+    // equals to open session version)
+    for (OmKeyLocationInfo subKeyInfo : version.getLocationList(openVersion)) {
+      addKeyLocationInfo(subKeyInfo);
+    }
+  }
+
+  private void addKeyLocationInfo(OmKeyLocationInfo subKeyInfo) {
+    Preconditions.checkNotNull(subKeyInfo.getPipeline());
+    BlockDataStreamOutputEntry.Builder builder =
+        new BlockDataStreamOutputEntry.Builder()
+            .setBlockID(subKeyInfo.getBlockID())
+            .setKey(keyArgs.getKeyName())
+            .setXceiverClientManager(xceiverClientFactory)
+            .setPipeline(subKeyInfo.getPipeline())
+            .setConfig(config)
+            .setLength(subKeyInfo.getLength())
+            .setBufferPool(bufferPool)
+            .setToken(subKeyInfo.getToken());
+    streamEntries.add(builder.build());
+  }
+
+  public List<OmKeyLocationInfo> getLocationInfoList()  {
+    List<OmKeyLocationInfo> locationInfoList = new ArrayList<>();
+    for (BlockDataStreamOutputEntry streamEntry : streamEntries) {
+      long length = streamEntry.getCurrentPosition();
+
+      // Commit only those blocks to OzoneManager which are not empty
+      if (length != 0) {
+        OmKeyLocationInfo info =
+            new OmKeyLocationInfo.Builder().setBlockID(streamEntry.getBlockID())
+                .setLength(streamEntry.getCurrentPosition()).setOffset(0)
+                .setToken(streamEntry.getToken())
+                .setPipeline(streamEntry.getPipeline()).build();
+        locationInfoList.add(info);
+      }
+      if (LOG.isDebugEnabled()) {
+        LOG.debug(
+            "block written " + streamEntry.getBlockID() + ", length " + length
+                + " bcsID " + streamEntry.getBlockID()
+                .getBlockCommitSequenceId());
+      }
+    }
+    return locationInfoList;
+  }
+
+  /**
+   * Discards the subsequent pre allocated blocks and removes the streamEntries
+   * from the streamEntries list for the container which is closed.
+   * @param containerID id of the closed container
+   * @param pipelineId id of the associated pipeline
+   */
+  void discardPreallocatedBlocks(long containerID, PipelineID pipelineId) {
+    // currentStreamIndex < streamEntries.size() signifies that, there are still
+    // pre allocated blocks available.
+
+    // This will be called only to discard the next subsequent unused blocks
+    // in the streamEntryList.
+    if (currentStreamIndex + 1 < streamEntries.size()) {
+      ListIterator<BlockDataStreamOutputEntry> streamEntryIterator =
+          streamEntries.listIterator(currentStreamIndex + 1);
+      while (streamEntryIterator.hasNext()) {
+        BlockDataStreamOutputEntry streamEntry = streamEntryIterator.next();
+        Preconditions.checkArgument(streamEntry.getCurrentPosition() == 0);
+        if ((streamEntry.getPipeline().getId().equals(pipelineId)) ||
+            (containerID != -1 &&
+                streamEntry.getBlockID().getContainerID() == containerID)) {
+          streamEntryIterator.remove();
+        }
+      }
+    }
+  }
+
+  List<BlockDataStreamOutputEntry> getStreamEntries() {
+    return streamEntries;
+  }
+
+  XceiverClientFactory getXceiverClientFactory() {
+    return xceiverClientFactory;
+  }
+
+  String getKeyName() {
+    return keyArgs.getKeyName();
+  }
+
+  long getKeyLength() {
+    return streamEntries.stream().mapToLong(
+        BlockDataStreamOutputEntry::getCurrentPosition).sum();
+  }
+  /**
+   * Contact OM to get a new block. Set the new block with the index (e.g.
+   * first block has index = 0, second has index = 1 etc.)
+   *
+   * The returned block is made to new BlockDataStreamOutputEntry to write.
+   *
+   * @throws IOException
+   */
+  private void allocateNewBlock() throws IOException {
+    if (!excludeList.isEmpty()) {
+      LOG.debug("Allocating block with {}", excludeList);
+    }
+    OmKeyLocationInfo subKeyInfo =
+        omClient.allocateBlock(keyArgs, openID, excludeList);
+    addKeyLocationInfo(subKeyInfo);
+  }
+
+
+  void commitKey(long offset) throws IOException {
+    if (keyArgs != null) {
+      // in test, this could be null
+      long length = getKeyLength();
+      Preconditions.checkArgument(offset == length);
+      keyArgs.setDataSize(length);
+      keyArgs.setLocationInfoList(getLocationInfoList());
+      // When the key is multipart upload part file upload, we should not
+      // commit the key, as this is not an actual key, this is a just a
+      // partial key of a large file.
+      if (keyArgs.getIsMultipartKey()) {
+        commitUploadPartInfo =
+            omClient.commitMultipartUploadPart(keyArgs, openID);
+      } else {
+        omClient.commitKey(keyArgs, openID);
+      }
+    } else {
+      LOG.warn("Closing KeyDataStreamOutput, but key args is null");
+    }
+  }
+
+  public BlockDataStreamOutputEntry getCurrentStreamEntry() {
+    if (streamEntries.isEmpty() || streamEntries.size() <= currentStreamIndex) {
+      return null;
+    } else {
+      return streamEntries.get(currentStreamIndex);
+    }
+  }
+
+  BlockDataStreamOutputEntry allocateBlockIfNeeded() throws IOException {
+    BlockDataStreamOutputEntry streamEntry = getCurrentStreamEntry();
+    if (streamEntry != null && streamEntry.isClosed()) {
+      // a stream entry gets closed either by :
+      // a. If the stream gets full
+      // b. it has encountered an exception
+      currentStreamIndex++;
+    }
+    if (streamEntries.size() <= currentStreamIndex) {
+      Preconditions.checkNotNull(omClient);
+      // allocate a new block, if a exception happens, log an error and
+      // throw exception to the caller directly, and the write fails.
+      allocateNewBlock();
+    }
+    // in theory, this condition should never violate due the check above
+    // still do a sanity check.
+    Preconditions.checkArgument(currentStreamIndex < streamEntries.size());
+    return streamEntries.get(currentStreamIndex);
+  }
+
+  long computeBufferData() {
+    return bufferPool.computeBufferData();
+  }
+
+  void cleanup() {
+    if (excludeList != null) {
+      excludeList.clear();
+    }
+    if (bufferPool != null) {
+      bufferPool.clearBufferPool();
+    }
+
+    if (streamEntries != null) {
+      streamEntries.clear();
+    }
+  }
+
+  public OmMultipartCommitUploadPartInfo getCommitUploadPartInfo() {
+    return commitUploadPartInfo;
+  }
+
+  public ExcludeList getExcludeList() {
+    return excludeList;
+  }
+
+  boolean isEmpty() {
+    return streamEntries.isEmpty();
+  }
+}
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
new file mode 100644
index 0000000..a9be116
--- /dev/null
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/KeyDataStreamOutput.java
@@ -0,0 +1,629 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.apache.hadoop.ozone.client.io;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import org.apache.hadoop.fs.FSExceptionMessages;
+import org.apache.hadoop.fs.FileEncryptionInfo;
+import org.apache.hadoop.hdds.client.ReplicationConfig;
+import org.apache.hadoop.hdds.protocol.DatanodeDetails;
+import org.apache.hadoop.hdds.scm.OzoneClientConfig;
+import org.apache.hadoop.hdds.scm.XceiverClientFactory;
+import org.apache.hadoop.hdds.scm.client.HddsClientUtils;
+import org.apache.hadoop.hdds.scm.container.ContainerID;
+import org.apache.hadoop.hdds.scm.container.common.helpers.ExcludeList;
+import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
+import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
+import org.apache.hadoop.hdds.scm.pipeline.PipelineID;
+import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.io.retry.RetryPolicies;
+import org.apache.hadoop.io.retry.RetryPolicy;
+import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfoGroup;
+import org.apache.hadoop.ozone.om.helpers.OmMultipartCommitUploadPartInfo;
+import org.apache.hadoop.ozone.om.helpers.OpenKeySession;
+import org.apache.hadoop.ozone.om.protocol.OzoneManagerProtocol;
+import org.apache.ratis.protocol.exceptions.AlreadyClosedException;
+import org.apache.ratis.protocol.exceptions.RaftRetryFailureException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.InterruptedIOException;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+/**
+ * Maintaining a list of BlockInputStream. Write based on offset.
+ *
+ * Note that this may write to multiple containers in one write call. In case
+ * that first container succeeded but later ones failed, the succeeded writes
+ * are not rolled back.
+ *
+ * TODO : currently not support multi-thread access.
+ */
+public class KeyDataStreamOutput implements ByteBufStreamOutput {
+
+  private OzoneClientConfig config;
+
+  /**
+   * Defines stream action while calling handleFlushOrClose.
+   */
+  enum StreamAction {
+    FLUSH, CLOSE, FULL
+  }
+
+  public static final Logger LOG =
+      LoggerFactory.getLogger(KeyDataStreamOutput.class);
+
+  private boolean closed;
+  private FileEncryptionInfo feInfo;
+  private final Map<Class<? extends Throwable>, RetryPolicy> retryPolicyMap;
+  private int retryCount;
+  // how much of data is actually written yet to underlying stream
+  private long offset;
+  // how much data has been ingested into the stream
+  private long writeOffset;
+  // whether an exception is encountered while write and whole write could
+  // not succeed
+  private boolean isException;
+  private final BlockDataStreamOutputEntryPool blockDataStreamOutputEntryPool;
+
+  private long clientID;
+
+  /**
+   * A constructor for testing purpose only.
+   */
+  @VisibleForTesting
+  public KeyDataStreamOutput() {
+    closed = false;
+    this.retryPolicyMap = HddsClientUtils.getExceptionList()
+        .stream()
+        .collect(Collectors.toMap(Function.identity(),
+            e -> RetryPolicies.TRY_ONCE_THEN_FAIL));
+    retryCount = 0;
+    offset = 0;
+    blockDataStreamOutputEntryPool = new BlockDataStreamOutputEntryPool();
+  }
+
+  @VisibleForTesting
+  public List<BlockDataStreamOutputEntry> getStreamEntries() {
+    return blockDataStreamOutputEntryPool.getStreamEntries();
+  }
+
+  @VisibleForTesting
+  public XceiverClientFactory getXceiverClientFactory() {
+    return blockDataStreamOutputEntryPool.getXceiverClientFactory();
+  }
+
+  @VisibleForTesting
+  public List<OmKeyLocationInfo> getLocationInfoList() {
+    return blockDataStreamOutputEntryPool.getLocationInfoList();
+  }
+
+  @VisibleForTesting
+  public int getRetryCount() {
+    return retryCount;
+  }
+
+  @VisibleForTesting
+  public long getClientID() {
+    return clientID;
+  }
+
+  @SuppressWarnings({"parameternumber", "squid:S00107"})
+  public KeyDataStreamOutput(
+      OzoneClientConfig config,
+      OpenKeySession handler,
+      XceiverClientFactory xceiverClientManager,
+      OzoneManagerProtocol omClient, int chunkSize,
+      String requestId, ReplicationConfig replicationConfig,
+      String uploadID, int partNumber, boolean isMultipart,
+      boolean unsafeByteBufferConversion
+  ) {
+    this.config = config;
+    OmKeyInfo info = handler.getKeyInfo();
+    blockDataStreamOutputEntryPool =
+        new BlockDataStreamOutputEntryPool(
+            config,
+            omClient,
+            requestId, replicationConfig,
+            uploadID, partNumber,
+            isMultipart, info,
+            unsafeByteBufferConversion,
+            xceiverClientManager,
+            handler.getId());
+
+    // Retrieve the file encryption key info, null if file is not in
+    // encrypted bucket.
+    this.feInfo = info.getFileEncryptionInfo();
+    this.retryPolicyMap = HddsClientUtils.getRetryPolicyByException(
+        config.getMaxRetryCount(), config.getRetryInterval());
+    this.retryCount = 0;
+    this.isException = false;
+    this.writeOffset = 0;
+    this.clientID = handler.getId();
+  }
+
+  /**
+   * When a key is opened, it is possible that there are some blocks already
+   * allocated to it for this open session. In this case, to make use of these
+   * blocks, we need to add these blocks to stream entries. But, a key's version
+   * also includes blocks from previous versions, we need to avoid adding these
+   * old blocks to stream entries, because these old blocks should not be picked
+   * for write. To do this, the following method checks that, only those
+   * blocks created in this particular open version are added to stream entries.
+   *
+   * @param version the set of blocks that are pre-allocated.
+   * @param openVersion the version corresponding to the pre-allocation.
+   * @throws IOException
+   */
+  public void addPreallocateBlocks(OmKeyLocationInfoGroup version,
+      long openVersion) throws IOException {
+    blockDataStreamOutputEntryPool.addPreallocateBlocks(version, openVersion);
+  }
+
+  @Override
+  public void write(ByteBuf b) throws IOException {
+    checkNotClosed();
+    if (b == null) {
+      throw new NullPointerException();
+    }
+    final int len = b.readableBytes();
+    handleWrite(b, b.readerIndex(), len, false);
+    writeOffset += len;
+  }
+
+  private void handleWrite(ByteBuf b, int off, long len, boolean retry)
+      throws IOException {
+    while (len > 0) {
+      try {
+        BlockDataStreamOutputEntry current =
+            blockDataStreamOutputEntryPool.allocateBlockIfNeeded();
+        // length(len) will be in int range if the call is happening through
+        // write API of blockDataStreamOutput. Length can be in long range
+        // if it comes via Exception path.
+        int expectedWriteLen = Math.min((int) len,
+                (int) current.getRemaining());
+        long currentPos = current.getWrittenDataLength();
+        // writeLen will be updated based on whether the write was succeeded
+        // or if it sees an exception, how much the actual write was
+        // acknowledged.
+        int writtenLength =
+            writeToDataStreamOutput(current, retry, len, b,
+                expectedWriteLen, off, currentPos);
+        if (current.getRemaining() <= 0) {
+          // since the current block is already written close the stream.
+          handleFlushOrClose(StreamAction.FULL);
+        }
+        len -= writtenLength;
+        off += writtenLength;
+      } catch (Exception e) {
+        markStreamClosed();
+        throw new IOException(e);
+      }
+    }
+  }
+
+  private int writeToDataStreamOutput(BlockDataStreamOutputEntry current,
+      boolean retry, long len, ByteBuf b, int writeLen, int off,
+      long currentPos) throws IOException {
+    try {
+      if (retry) {
+        current.writeOnRetry(len);
+      } else {
+        current.write(b, off, writeLen);
+        offset += writeLen;
+      }
+    } catch (IOException ioe) {
+      // for the current iteration, totalDataWritten - currentPos gives the
+      // amount of data already written to the buffer
+
+      // In the retryPath, the total data to be written will always be equal
+      // to or less than the max length of the buffer allocated.
+      // The len specified here is the combined sum of the data length of
+      // the buffers
+      Preconditions.checkState(!retry || len <= config
+          .getStreamBufferMaxSize());
+      int dataWritten = (int) (current.getWrittenDataLength() - currentPos);
+      writeLen = retry ? (int) len : dataWritten;
+      // In retry path, the data written is already accounted in offset.
+      if (!retry) {
+        offset += writeLen;
+      }
+      LOG.debug("writeLen {}, total len {}", writeLen, len);
+      handleException(current, ioe);
+    }
+    return writeLen;
+  }
+
+  /**
+   * It performs following actions :
+   * a. Updates the committed length at datanode for the current stream in
+   * datanode.
+   * b. Reads the data from the underlying buffer and writes it the next stream.
+   *
+   * @param streamEntry StreamEntry
+   * @param exception   actual exception that occurred
+   * @throws IOException Throws IOException if Write fails
+   */
+  private void handleException(BlockDataStreamOutputEntry streamEntry,
+      IOException exception) throws IOException {
+    Throwable t = HddsClientUtils.checkForException(exception);
+    Preconditions.checkNotNull(t);
+    boolean retryFailure = checkForRetryFailure(t);
+    boolean containerExclusionException = false;
+    if (!retryFailure) {
+      containerExclusionException = checkIfContainerToExclude(t);
+    }
+    Pipeline pipeline = streamEntry.getPipeline();
+    PipelineID pipelineId = pipeline.getId();
+    long totalSuccessfulFlushedData = streamEntry.getTotalAckDataLength();
+    //set the correct length for the current stream
+    streamEntry.setCurrentPosition(totalSuccessfulFlushedData);
+    long bufferedDataLen = blockDataStreamOutputEntryPool.computeBufferData();
+    if (containerExclusionException) {
+      LOG.debug(
+          "Encountered exception {}. The last committed block length is {}, "
+              + "uncommitted data length is {} retry count {}", exception,
+          totalSuccessfulFlushedData, bufferedDataLen, retryCount);
+    } else {
+      LOG.warn(
+          "Encountered exception {} on the pipeline {}. "
+              + "The last committed block length is {}, "
+              + "uncommitted data length is {} retry count {}", exception,
+          pipeline, totalSuccessfulFlushedData, bufferedDataLen, retryCount);
+    }
+    Preconditions.checkArgument(
+        bufferedDataLen <= config.getStreamBufferMaxSize());
+    Preconditions.checkArgument(
+        offset - blockDataStreamOutputEntryPool.getKeyLength() ==
+        bufferedDataLen);
+    long containerId = streamEntry.getBlockID().getContainerID();
+    Collection<DatanodeDetails> failedServers = streamEntry.getFailedServers();
+    Preconditions.checkNotNull(failedServers);
+    ExcludeList excludeList = blockDataStreamOutputEntryPool.getExcludeList();
+    if (!failedServers.isEmpty()) {
+      excludeList.addDatanodes(failedServers);
+    }
+
+    // if the container needs to be excluded , add the container to the
+    // exclusion list , otherwise add the pipeline to the exclusion list
+    if (containerExclusionException) {
+      excludeList.addConatinerId(ContainerID.valueOf(containerId));
+    } else {
+      excludeList.addPipeline(pipelineId);
+    }
+    // just clean up the current stream.
+    streamEntry.cleanup(retryFailure);
+
+    // discard all subsequent blocks the containers and pipelines which
+    // are in the exclude list so that, the very next retry should never
+    // write data on the  closed container/pipeline
+    if (containerExclusionException) {
+      // discard subsequent pre allocated blocks from the streamEntries list
+      // from the closed container
+      blockDataStreamOutputEntryPool
+          .discardPreallocatedBlocks(streamEntry.getBlockID().getContainerID(),
+              null);
+    } else {
+      // In case there is timeoutException or Watch for commit happening over
+      // majority or the client connection failure to the leader in the
+      // pipeline, just discard all the pre allocated blocks on this pipeline.
+      // Next block allocation will happen with excluding this specific pipeline
+      // This will ensure if 2 way commit happens , it cannot span over multiple
+      // blocks
+      blockDataStreamOutputEntryPool
+          .discardPreallocatedBlocks(-1, pipelineId);
+    }
+    if (bufferedDataLen > 0) {
+      // If the data is still cached in the underlying stream, we need to
+      // allocate new block and write this data in the datanode.
+      handleRetry(exception, bufferedDataLen);
+      // reset the retryCount after handling the exception
+      retryCount = 0;
+    }
+  }
+
+  private void markStreamClosed() {
+    blockDataStreamOutputEntryPool.cleanup();
+    closed = true;
+  }
+
+  private void handleRetry(IOException exception, long len) throws IOException {
+    RetryPolicy retryPolicy = retryPolicyMap
+        .get(HddsClientUtils.checkForException(exception).getClass());
+    if (retryPolicy == null) {
+      retryPolicy = retryPolicyMap.get(Exception.class);
+    }
+    RetryPolicy.RetryAction action = null;
+    try {
+      action = retryPolicy.shouldRetry(exception, retryCount, 0, true);
+    } catch (Exception e) {
+      setExceptionAndThrow(new IOException(e));
+    }
+    if (action.action == RetryPolicy.RetryAction.RetryDecision.FAIL) {
+      String msg = "";
+      if (action.reason != null) {
+        msg = "Retry request failed. " + action.reason;
+        LOG.error(msg, exception);
+      }
+      setExceptionAndThrow(new IOException(msg, exception));
+    }
+
+    // Throw the exception if the thread is interrupted
+    if (Thread.currentThread().isInterrupted()) {
+      LOG.warn("Interrupted while trying for retry");
+      setExceptionAndThrow(exception);
+    }
+    Preconditions.checkArgument(
+        action.action == RetryPolicy.RetryAction.RetryDecision.RETRY);
+    if (action.delayMillis > 0) {
+      try {
+        Thread.sleep(action.delayMillis);
+      } catch (InterruptedException e) {
+        Thread.currentThread().interrupt();
+        IOException ioe =  (IOException) new InterruptedIOException(
+            "Interrupted: action=" + action + ", retry policy=" + retryPolicy)
+            .initCause(e);
+        setExceptionAndThrow(ioe);
+      }
+    }
+    retryCount++;
+    if (LOG.isTraceEnabled()) {
+      LOG.trace("Retrying Write request. Already tried {} time(s); " +
+          "retry policy is {} ", retryCount, retryPolicy);
+    }
+    handleWrite(null, 0, len, true);
+  }
+
+  private void setExceptionAndThrow(IOException ioe) throws IOException {
+    isException = true;
+    throw ioe;
+  }
+
+  /**
+   * Checks if the provided exception signifies retry failure in ratis client.
+   * In case of retry failure, ratis client throws RaftRetryFailureException
+   * and all succeeding operations are failed with AlreadyClosedException.
+   */
+  private boolean checkForRetryFailure(Throwable t) {
+    return t instanceof RaftRetryFailureException
+        || t instanceof AlreadyClosedException;
+  }
+
+  // Every container specific exception from datatnode will be seen as
+  // StorageContainerException
+  private boolean checkIfContainerToExclude(Throwable t) {
+    return t instanceof StorageContainerException;
+  }
+
+  @Override
+  public void flush() throws IOException {
+    checkNotClosed();
+    handleFlushOrClose(StreamAction.FLUSH);
+  }
+
+  /**
+   * Close or Flush the latest outputStream depending upon the action.
+   * This function gets called when while write is going on, the current stream
+   * gets full or explicit flush or close request is made by client. when the
+   * stream gets full and we try to close the stream , we might end up hitting
+   * an exception in the exception handling path, we write the data residing in
+   * in the buffer pool to a new Block. In cases, as such, when the data gets
+   * written to new stream , it will be at max half full. In such cases, we
+   * should just write the data and not close the stream as the block won't be
+   * completely full.
+   *
+   * @param op Flag which decides whether to call close or flush on the
+   *           outputStream.
+   * @throws IOException In case, flush or close fails with exception.
+   */
+  @SuppressWarnings("squid:S1141")
+  private void handleFlushOrClose(StreamAction op) throws IOException {
+    if (!blockDataStreamOutputEntryPool.isEmpty()) {
+      while (true) {
+        try {
+          BlockDataStreamOutputEntry entry =
+              blockDataStreamOutputEntryPool.getCurrentStreamEntry();
+          if (entry != null) {
+            try {
+              handleStreamAction(entry, op);
+            } catch (IOException ioe) {
+              handleException(entry, ioe);
+              continue;
+            }
+          }
+          return;
+        } catch (Exception e) {
+          markStreamClosed();
+          throw e;
+        }
+      }
+    }
+  }
+
+  private void handleStreamAction(BlockDataStreamOutputEntry entry,
+                                  StreamAction op) throws IOException {
+    Collection<DatanodeDetails> failedServers = entry.getFailedServers();
+    // failed servers can be null in case there is no data written in
+    // the stream
+    if (!failedServers.isEmpty()) {
+      blockDataStreamOutputEntryPool.getExcludeList().addDatanodes(
+          failedServers);
+    }
+    switch (op) {
+    case CLOSE:
+      entry.close();
+      break;
+    case FULL:
+      if (entry.getRemaining() == 0) {
+        entry.close();
+      }
+      break;
+    case FLUSH:
+      entry.flush();
+      break;
+    default:
+      throw new IOException("Invalid Operation");
+    }
+  }
+
+  /**
+   * Commit the key to OM, this will add the blocks as the new key blocks.
+   *
+   * @throws IOException
+   */
+  @Override
+  public void close() throws IOException {
+    if (closed) {
+      return;
+    }
+    closed = true;
+    try {
+      handleFlushOrClose(StreamAction.CLOSE);
+      if (!isException) {
+        Preconditions.checkArgument(writeOffset == offset);
+      }
+      blockDataStreamOutputEntryPool.commitKey(offset);
+    } finally {
+      blockDataStreamOutputEntryPool.cleanup();
+    }
+  }
+
+  public OmMultipartCommitUploadPartInfo getCommitUploadPartInfo() {
+    return blockDataStreamOutputEntryPool.getCommitUploadPartInfo();
+  }
+
+  public FileEncryptionInfo getFileEncryptionInfo() {
+    return feInfo;
+  }
+
+  @VisibleForTesting
+  public ExcludeList getExcludeList() {
+    return blockDataStreamOutputEntryPool.getExcludeList();
+  }
+
+  /**
+   * Builder class of KeyDataStreamOutput.
+   */
+  public static class Builder {
+    private OpenKeySession openHandler;
+    private XceiverClientFactory xceiverManager;
+    private OzoneManagerProtocol omClient;
+    private int chunkSize;
+    private String requestID;
+    private String multipartUploadID;
+    private int multipartNumber;
+    private boolean isMultipartKey;
+    private boolean unsafeByteBufferConversion;
+    private OzoneClientConfig clientConfig;
+    private ReplicationConfig replicationConfig;
+
+    public Builder setMultipartUploadID(String uploadID) {
+      this.multipartUploadID = uploadID;
+      return this;
+    }
+
+    public Builder setMultipartNumber(int partNumber) {
+      this.multipartNumber = partNumber;
+      return this;
+    }
+
+    public Builder setHandler(OpenKeySession handler) {
+      this.openHandler = handler;
+      return this;
+    }
+
+    public Builder setXceiverClientManager(XceiverClientFactory manager) {
+      this.xceiverManager = manager;
+      return this;
+    }
+
+    public Builder setOmClient(OzoneManagerProtocol client) {
+      this.omClient = client;
+      return this;
+    }
+
+    public Builder setChunkSize(int size) {
+      this.chunkSize = size;
+      return this;
+    }
+
+    public Builder setRequestID(String id) {
+      this.requestID = id;
+      return this;
+    }
+
+    public Builder setIsMultipartKey(boolean isMultipart) {
+      this.isMultipartKey = isMultipart;
+      return this;
+    }
+
+    public Builder setConfig(OzoneClientConfig config) {
+      this.clientConfig = config;
+      return this;
+    }
+
+    public Builder enableUnsafeByteBufferConversion(boolean enabled) {
+      this.unsafeByteBufferConversion = enabled;
+      return this;
+    }
+
+
+    public Builder setReplicationConfig(ReplicationConfig replConfig) {
+      this.replicationConfig = replConfig;
+      return this;
+    }
+
+    public KeyDataStreamOutput build() {
+      return new KeyDataStreamOutput(
+          clientConfig,
+          openHandler,
+          xceiverManager,
+          omClient,
+          chunkSize,
+          requestID,
+          replicationConfig,
+          multipartUploadID,
+          multipartNumber,
+          isMultipartKey,
+          unsafeByteBufferConversion);
+    }
+
+  }
+
+  /**
+   * Verify that the output stream is open. Non blocking; this gives
+   * the last state of the volatile {@link #closed} field.
+   * @throws IOException if the connection is closed.
+   */
+  private void checkNotClosed() throws IOException {
+    if (closed) {
+      throw new IOException(
+          ": " + FSExceptionMessages.STREAM_IS_CLOSED + " Key: "
+              + blockDataStreamOutputEntryPool.getKeyName());
+    }
+  }
+}
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java
new file mode 100644
index 0000000..378b868
--- /dev/null
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/OzoneDataStreamOutput.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with this
+ * work for additional information regarding copyright ownership.  The ASF
+ * licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package org.apache.hadoop.ozone.client.io;
+
+import io.netty.buffer.ByteBuf;
+import org.apache.hadoop.hdds.scm.storage.ByteBufStreamOutput;
+import org.apache.hadoop.ozone.om.helpers.OmMultipartCommitUploadPartInfo;
+
+import java.io.IOException;
+
+/**
+ * OzoneDataStreamOutput is used to write data into Ozone.
+ * It uses SCM's {@link KeyDataStreamOutput} for writing the data.
+ */
+public class OzoneDataStreamOutput implements ByteBufStreamOutput {
+
+  private final ByteBufStreamOutput byteBufStreamOutput;
+
+  /**
+   * Constructs OzoneDataStreamOutput with KeyDataStreamOutput.
+   *
+   * @param byteBufStreamOutput
+   */
+  public OzoneDataStreamOutput(ByteBufStreamOutput byteBufStreamOutput) {
+    this.byteBufStreamOutput = byteBufStreamOutput;
+  }
+
+  @Override
+  public void write(ByteBuf b) throws IOException {
+    byteBufStreamOutput.write(b);
+  }
+
+  @Override
+  public synchronized void flush() throws IOException {
+    byteBufStreamOutput.flush();
+  }
+
+  @Override
+  public synchronized void close() throws IOException {
+    //commitKey can be done here, if needed.
+    byteBufStreamOutput.close();
+  }
+
+  public OmMultipartCommitUploadPartInfo getCommitUploadPartInfo() {
+    if (byteBufStreamOutput instanceof KeyDataStreamOutput) {
+      return ((KeyDataStreamOutput)
+              byteBufStreamOutput).getCommitUploadPartInfo();
+    }
+    // Otherwise return null.
+    return null;
+  }
+
+  public ByteBufStreamOutput getByteBufStreamOutput() {
+    return byteBufStreamOutput;
+  }
+}
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/protocol/ClientProtocol.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/protocol/ClientProtocol.java
index c4f98e8..0b430110 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/protocol/ClientProtocol.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/protocol/ClientProtocol.java
@@ -38,6 +38,7 @@ import org.apache.hadoop.ozone.client.OzoneMultipartUploadList;
 import org.apache.hadoop.ozone.client.OzoneMultipartUploadPartListParts;
 import org.apache.hadoop.ozone.client.OzoneVolume;
 import org.apache.hadoop.ozone.client.VolumeArgs;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
 import org.apache.hadoop.ozone.client.io.OzoneInputStream;
 import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
 import org.apache.hadoop.ozone.om.OMConfigKeys;
@@ -291,6 +292,20 @@ public interface ClientProtocol {
       Map<String, String> metadata)
       throws IOException;
 
+  /**
+   * Writes a key in an existing bucket.
+   * @param volumeName Name of the Volume
+   * @param bucketName Name of the Bucket
+   * @param keyName Name of the Key
+   * @param size Size of the data
+   * @param metadata custom key value metadata
+   * @return {@link OzoneDataStreamOutput}
+   *
+   */
+  OzoneDataStreamOutput createStreamKey(String volumeName, String bucketName,
+      String keyName, long size, ReplicationConfig replicationConfig,
+      Map<String, String> metadata)
+      throws IOException;
 
   /**
    * Reads a key from an existing bucket.
diff --git a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java
index 1d831e6..b8fee0c 100644
--- a/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java
+++ b/hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java
@@ -72,11 +72,13 @@ import org.apache.hadoop.ozone.client.OzoneMultipartUploadList;
 import org.apache.hadoop.ozone.client.OzoneMultipartUploadPartListParts;
 import org.apache.hadoop.ozone.client.OzoneVolume;
 import org.apache.hadoop.ozone.client.VolumeArgs;
+import org.apache.hadoop.ozone.client.io.KeyDataStreamOutput;
 import org.apache.hadoop.ozone.client.io.KeyInputStream;
 import org.apache.hadoop.ozone.client.io.KeyOutputStream;
 import org.apache.hadoop.ozone.client.io.LengthInputStream;
 import org.apache.hadoop.ozone.client.io.MultipartCryptoKeyInputStream;
 import org.apache.hadoop.ozone.client.io.OzoneCryptoInputStream;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
 import org.apache.hadoop.ozone.client.io.OzoneInputStream;
 import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
 import org.apache.hadoop.ozone.client.protocol.ClientProtocol;
@@ -802,6 +804,48 @@ public class RpcClient implements ClientProtocol {
     return createOutputStream(openKey, requestId, replicationConfig);
   }
 
+  @Override
+  public OzoneDataStreamOutput createStreamKey(
+      String volumeName, String bucketName, String keyName, long size,
+      ReplicationConfig replicationConfig,
+      Map<String, String> metadata)
+      throws IOException {
+    verifyVolumeName(volumeName);
+    verifyBucketName(bucketName);
+    if (checkKeyNameEnabled) {
+      HddsClientUtils.verifyKeyName(keyName);
+    }
+    HddsClientUtils.checkNotNull(keyName, replicationConfig);
+    String requestId = UUID.randomUUID().toString();
+
+    OmKeyArgs.Builder builder = new OmKeyArgs.Builder()
+        .setVolumeName(volumeName)
+        .setBucketName(bucketName)
+        .setKeyName(keyName)
+        .setDataSize(size)
+        .setReplicationConfig(replicationConfig)
+        .addAllMetadata(metadata)
+        .setAcls(getAclList());
+
+    if (Boolean.parseBoolean(metadata.get(OzoneConsts.GDPR_FLAG))) {
+      try{
+        GDPRSymmetricKey gKey = new GDPRSymmetricKey(new SecureRandom());
+        builder.addAllMetadata(gKey.getKeyDetails());
+      } catch (Exception e) {
+        if (e instanceof InvalidKeyException &&
+            e.getMessage().contains("Illegal key size or default parameters")) {
+          LOG.error("Missing Unlimited Strength Policy jars. Please install " +
+              "Java Cryptography Extension (JCE) Unlimited Strength " +
+              "Jurisdiction Policy Files");
+        }
+        throw new IOException(e);
+      }
+    }
+
+    OpenKeySession openKey = ozoneManagerClient.openKey(builder.build());
+    return createDataStreamOutput(openKey, requestId, replicationConfig);
+  }
+
   private KeyProvider.KeyVersion getDEK(FileEncryptionInfo feInfo)
       throws IOException {
     // check crypto protocol version
@@ -1384,6 +1428,24 @@ public class RpcClient implements ClientProtocol {
           cryptoInputStreams);
     }
   }
+  private OzoneDataStreamOutput createDataStreamOutput(OpenKeySession openKey,
+      String requestId, ReplicationConfig replicationConfig)
+      throws IOException {
+    KeyDataStreamOutput keyOutputStream =
+        new KeyDataStreamOutput.Builder()
+            .setHandler(openKey)
+            .setXceiverClientManager(xceiverClientManager)
+            .setOmClient(ozoneManagerClient)
+            .setRequestID(requestId)
+            .setReplicationConfig(replicationConfig)
+            .enableUnsafeByteBufferConversion(unsafeByteBufferConversion)
+            .setConfig(clientConfig)
+            .build();
+    keyOutputStream
+        .addPreallocateBlocks(openKey.getKeyInfo().getLatestVersionLocations(),
+            openKey.getOpenVersion());
+    return new OzoneDataStreamOutput(keyOutputStream);
+  }
 
   private OzoneOutputStream createOutputStream(OpenKeySession openKey,
       String requestId, ReplicationConfig replicationConfig)
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java
new file mode 100644
index 0000000..4d52d89
--- /dev/null
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestBlockDataStreamOutput.java
@@ -0,0 +1,181 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with this
+ * work for additional information regarding copyright ownership.  The ASF
+ * licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package org.apache.hadoop.ozone.client.rpc;
+
+import io.netty.buffer.Unpooled;
+import org.apache.hadoop.conf.StorageUnit;
+import org.apache.hadoop.hdds.client.ReplicationType;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ChecksumType;
+import org.apache.hadoop.hdds.scm.OzoneClientConfig;
+import org.apache.hadoop.ozone.MiniOzoneCluster;
+import org.apache.hadoop.ozone.OzoneConfigKeys;
+import org.apache.hadoop.ozone.client.ObjectStore;
+import org.apache.hadoop.ozone.client.OzoneClient;
+import org.apache.hadoop.ozone.client.OzoneClientFactory;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
+import org.apache.hadoop.ozone.container.ContainerTestHelper;
+import org.apache.hadoop.ozone.container.TestHelper;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.Timeout;
+
+import java.io.IOException;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.apache.hadoop.hdds.scm.ScmConfigKeys.HDDS_SCM_WATCHER_TIMEOUT;
+import static org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_STALENODE_INTERVAL;
+
+/**
+ * Tests BlockDataStreamOutput class.
+ */
+public class TestBlockDataStreamOutput {
+
+  /**
+    * Set a timeout for each test.
+    */
+  @Rule
+  public Timeout timeout = Timeout.seconds(300);
+  private static MiniOzoneCluster cluster;
+  private static OzoneConfiguration conf = new OzoneConfiguration();
+  private static OzoneClient client;
+  private static ObjectStore objectStore;
+  private static int chunkSize;
+  private static int flushSize;
+  private static int maxFlushSize;
+  private static int blockSize;
+  private static String volumeName;
+  private static String bucketName;
+  private static String keyString;
+
+  /**
+   * Create a MiniDFSCluster for testing.
+   * <p>
+   * Ozone is made active by setting OZONE_ENABLED = true
+   *
+   * @throws IOException
+   */
+  @BeforeClass
+  public static void init() throws Exception {
+    chunkSize = 100;
+    flushSize = 2 * chunkSize;
+    maxFlushSize = 2 * flushSize;
+    blockSize = 2 * maxFlushSize;
+
+    OzoneClientConfig clientConfig = conf.getObject(OzoneClientConfig.class);
+    clientConfig.setChecksumType(ChecksumType.NONE);
+    clientConfig.setStreamBufferFlushDelay(false);
+    conf.setFromObject(clientConfig);
+
+    conf.setTimeDuration(HDDS_SCM_WATCHER_TIMEOUT, 1000, TimeUnit.MILLISECONDS);
+    conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3, TimeUnit.SECONDS);
+    conf.setQuietMode(false);
+    conf.setStorageSize(OzoneConfigKeys.OZONE_SCM_BLOCK_SIZE, 4,
+        StorageUnit.MB);
+
+    cluster = MiniOzoneCluster.newBuilder(conf)
+        .setNumDatanodes(7)
+        .setTotalPipelineNumLimit(10)
+        .setBlockSize(blockSize)
+        .setChunkSize(chunkSize)
+        .setStreamBufferFlushSize(flushSize)
+        .setStreamBufferMaxSize(maxFlushSize)
+        .setStreamBufferSizeUnit(StorageUnit.BYTES)
+        .build();
+    cluster.waitForClusterToBeReady();
+    //the easiest way to create an open container is creating a key
+    client = OzoneClientFactory.getRpcClient(conf);
+    objectStore = client.getObjectStore();
+    keyString = UUID.randomUUID().toString();
+    volumeName = "testblockoutputstream";
+    bucketName = volumeName;
+    objectStore.createVolume(volumeName);
+    objectStore.getVolume(volumeName).createBucket(bucketName);
+  }
+
+  private String getKeyName() {
+    return UUID.randomUUID().toString();
+  }
+
+  /**
+   * Shutdown MiniDFSCluster.
+   */
+  @AfterClass
+  public static void shutdown() {
+    if (cluster != null) {
+      cluster.shutdown();
+    }
+  }
+
+  @Test
+  public void testMultiChunkWrite() throws Exception {
+    // write data less than 1 chunk size use streaming.
+    String keyName1 = getKeyName();
+    OzoneDataStreamOutput key1 = createKey(
+        keyName1, ReplicationType.RATIS, 0);
+    int dataLength1 = chunkSize/2;
+    byte[] data1 =
+        ContainerTestHelper.getFixedLengthString(keyString, dataLength1)
+            .getBytes(UTF_8);
+    key1.write(Unpooled.copiedBuffer(data1));
+    // now close the stream, It will update the key length.
+    key1.close();
+    validateData(keyName1, data1);
+
+    // write data more than 1 chunk size use streaming.
+    String keyName2 = getKeyName();
+    OzoneDataStreamOutput key2 = createKey(
+        keyName2, ReplicationType.RATIS, 0);
+    int dataLength2 = chunkSize + 50;
+    byte[] data2 =
+        ContainerTestHelper.getFixedLengthString(keyString, dataLength2)
+            .getBytes(UTF_8);
+    key2.write(Unpooled.copiedBuffer(data2));
+    // now close the stream, It will update the key length.
+    key2.close();
+    validateData(keyName2, data2);
+
+    // write data more than 1 block size use streaming.
+    String keyName3 = getKeyName();
+    OzoneDataStreamOutput key3 = createKey(
+        keyName3, ReplicationType.RATIS, 0);
+    int dataLength3 = blockSize + 50;
+    byte[] data3 =
+        ContainerTestHelper.getFixedLengthString(keyString, dataLength3)
+            .getBytes(UTF_8);
+    key3.write(Unpooled.copiedBuffer(data3));
+    // now close the stream, It will update the key length.
+    key3.close();
+    validateData(keyName3, data3);
+  }
+
+  private OzoneDataStreamOutput createKey(String keyName, ReplicationType type,
+      long size) throws Exception {
+    return TestHelper.createStreamKey(
+        keyName, type, size, objectStore, volumeName, bucketName);
+  }
+  private void validateData(String keyName, byte[] data) throws Exception {
+    TestHelper
+        .validateData(keyName, data, objectStore, volumeName, bucketName);
+  }
+
+}
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestHelper.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestHelper.java
index 85d46ca..0e48dd9 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestHelper.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestHelper.java
@@ -22,6 +22,8 @@ import java.io.IOException;
 import java.security.MessageDigest;
 import java.util.*;
 import java.util.concurrent.TimeoutException;
+
+import org.apache.hadoop.hdds.client.ReplicationConfig;
 import org.apache.hadoop.hdds.client.ReplicationType;
 import org.apache.hadoop.hdds.protocol.DatanodeDetails;
 import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
@@ -40,6 +42,7 @@ import org.apache.hadoop.ozone.OzoneConsts;
 import org.apache.hadoop.ozone.client.ObjectStore;
 import org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry;
 import org.apache.hadoop.ozone.client.io.KeyOutputStream;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
 import org.apache.hadoop.ozone.client.io.OzoneInputStream;
 import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
 import org.apache.hadoop.ozone.container.common.impl.ContainerData;
@@ -123,8 +126,23 @@ public final class TestHelper {
         type == ReplicationType.STAND_ALONE ?
             org.apache.hadoop.hdds.client.ReplicationFactor.ONE :
             org.apache.hadoop.hdds.client.ReplicationFactor.THREE;
+    ReplicationConfig config =
+            ReplicationConfig.fromTypeAndFactor(type, factor);
+    return objectStore.getVolume(volumeName).getBucket(bucketName)
+        .createKey(keyName, size, config, new HashMap<>());
+  }
+
+  public static OzoneDataStreamOutput createStreamKey(String keyName,
+      ReplicationType type, long size, ObjectStore objectStore,
+      String volumeName, String bucketName) throws Exception {
+    org.apache.hadoop.hdds.client.ReplicationFactor factor =
+        type == ReplicationType.STAND_ALONE ?
+            org.apache.hadoop.hdds.client.ReplicationFactor.ONE :
+            org.apache.hadoop.hdds.client.ReplicationFactor.THREE;
+    ReplicationConfig config =
+        ReplicationConfig.fromTypeAndFactor(type, factor);
     return objectStore.getVolume(volumeName).getBucket(bucketName)
-        .createKey(keyName, size, type, factor, new HashMap<>());
+        .createStreamKey(keyName, size, config, new HashMap<>());
   }
 
   public static OzoneOutputStream createKey(String keyName,
@@ -132,8 +150,10 @@ public final class TestHelper {
       org.apache.hadoop.hdds.client.ReplicationFactor factor, long size,
       ObjectStore objectStore, String volumeName, String bucketName)
       throws Exception {
+    ReplicationConfig config =
+            ReplicationConfig.fromTypeAndFactor(type, factor);
     return objectStore.getVolume(volumeName).getBucket(bucketName)
-        .createKey(keyName, size, type, factor, new HashMap<>());
+        .createKey(keyName, size, config, new HashMap<>());
   }
 
   public static void validateData(String keyName, byte[] data,
diff --git a/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java b/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
index c575b6e..56bc834 100644
--- a/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
+++ b/hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/shell/keys/PutKeyHandler.java
@@ -23,9 +23,14 @@ import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
 import java.util.HashMap;
 import java.util.Map;
 
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import org.apache.hadoop.conf.StorageUnit;
 import org.apache.hadoop.hdds.client.ReplicationConfig;
 import org.apache.hadoop.hdds.client.ReplicationConfigValidator;
@@ -36,6 +41,7 @@ import org.apache.hadoop.ozone.client.OzoneBucket;
 import org.apache.hadoop.ozone.client.OzoneClient;
 import org.apache.hadoop.ozone.client.OzoneClientException;
 import org.apache.hadoop.ozone.client.OzoneVolume;
+import org.apache.hadoop.ozone.client.io.OzoneDataStreamOutput;
 import org.apache.hadoop.ozone.shell.OzoneAddress;
 
 import org.apache.commons.codec.digest.DigestUtils;
@@ -113,10 +119,36 @@ public class PutKeyHandler extends KeyHandler {
 
     int chunkSize = (int) getConf().getStorageSize(OZONE_SCM_CHUNK_SIZE_KEY,
         OZONE_SCM_CHUNK_SIZE_DEFAULT, StorageUnit.BYTES);
-    try (InputStream input = new FileInputStream(dataFile);
-        OutputStream output = bucket.createKey(keyName, dataFile.length(),
-            replicationConfig, keyMetadata)) {
-      IOUtils.copyBytes(input, output, chunkSize);
+
+    if (dataFile.length() <= chunkSize) {
+      if (isVerbose()) {
+        out().println("API: async");
+      }
+      try (InputStream input = new FileInputStream(dataFile);
+           OutputStream output = bucket.createKey(keyName, dataFile.length(),
+               replicationConfig, keyMetadata)) {
+        IOUtils.copyBytes(input, output, chunkSize);
+      }
+    } else {
+      if (isVerbose()) {
+        out().println("API: streaming");
+      }
+      try (RandomAccessFile raf = new RandomAccessFile(dataFile, "r");
+           OzoneDataStreamOutput out = bucket.createStreamKey(keyName,
+               dataFile.length(), replicationConfig, keyMetadata)) {
+        FileChannel ch = raf.getChannel();
+        long len = raf.length();
+        long off = 0;
+        while (len > 0) {
+          long writeLen = Math.min(len, chunkSize);
+          ByteBuffer segment =
+              ch.map(FileChannel.MapMode.READ_ONLY, off, writeLen);
+          ByteBuf buf = Unpooled.wrappedBuffer(segment);
+          out.write(buf);
+          off += writeLen;
+          len -= writeLen;
+        }
+      }
     }
   }
 

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[ozone] 02/09: HDDS-5452. Add link method to ContainerStateMachine for Ratis streaming (#2422)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit fac149db09ee630ccd2131cef2245d97d360adf9
Author: Kaijie Chen <ch...@kaijie.org>
AuthorDate: Sun Jul 18 12:18:10 2021 +0800

    HDDS-5452. Add link method to ContainerStateMachine for Ratis streaming (#2422)
---
 .../transport/server/ratis/ContainerStateMachine.java   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
index 30c21fe..ff6cbfc 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
@@ -88,6 +88,7 @@ import org.apache.ratis.thirdparty.com.google.protobuf.InvalidProtocolBufferExce
 import org.apache.ratis.thirdparty.com.google.protobuf.TextFormat;
 import org.apache.ratis.util.TaskQueue;
 import org.apache.ratis.util.function.CheckedSupplier;
+import org.apache.ratis.util.JavaUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -523,6 +524,22 @@ public class ContainerStateMachine extends BaseStateMachine {
     }, executor);
   }
 
+  public CompletableFuture<?> link(DataStream stream, LogEntryProto entry) {
+    return CompletableFuture.supplyAsync(() -> {
+      if (stream == null) {
+        return JavaUtils.completeExceptionally(
+            new IllegalStateException("DataStream is null"));
+      }
+      if (stream.getDataChannel().isOpen()) {
+        return JavaUtils.completeExceptionally(
+            new IllegalStateException(
+                "DataStream: " + stream + " is not closed properly"));
+      } else {
+        return CompletableFuture.completedFuture(null);
+      }
+    }, executor);
+  }
+
   private ExecutorService getChunkExecutor(WriteChunkRequestProto req) {
     int i = (int)(req.getBlockID().getLocalID() % chunkExecutors.size());
     return chunkExecutors.get(i);

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[ozone] 04/09: HDDS-5480. [Ozone-Streaming] Client and server should support stream setup. (#2452)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit 8df196a1d1615d1a2bbe43c600d1303a32f4a4db
Author: micah zhao <mi...@tencent.com>
AuthorDate: Wed Jul 28 20:22:53 2021 +0800

    HDDS-5480. [Ozone-Streaming] Client and server should support stream setup. (#2452)
---
 .../hadoop/hdds/protocol/DatanodeDetails.java      |  9 +++--
 .../org/apache/hadoop/hdds/ratis/RatisHelper.java  | 16 ++++++--
 .../org/apache/hadoop/ozone/OzoneConfigKeys.java   | 18 +++++++++
 .../org/apache/hadoop/ozone/audit/DNAction.java    |  3 +-
 .../helpers/ContainerCommandRequestPBHelper.java   |  1 +
 .../common/src/main/resources/ozone-default.xml    | 20 ++++++++++
 .../org/apache/hadoop/hdds/conf/ConfigTag.java     |  3 +-
 .../container/common/impl/HddsDispatcher.java      |  3 +-
 .../transport/server/ratis/XceiverServerRatis.java | 46 +++++++++++++++++++++-
 .../ozone/container/keyvalue/KeyValueHandler.java  | 33 ++++++++++++++++
 .../keyvalue/impl/ChunkManagerDispatcher.java      |  6 +++
 .../keyvalue/impl/FilePerBlockStrategy.java        |  8 ++++
 .../keyvalue/interfaces/ChunkManager.java          |  5 +++
 .../container/common/TestDatanodeStateMachine.java |  6 ++-
 .../TestCreatePipelineCommandHandler.java          |  3 ++
 .../hdds/conf/DatanodeRatisServerConfig.java       | 35 ++++++++++++++++
 .../src/main/proto/DatanodeClientProtocol.proto    |  4 +-
 .../ozone/container/common/TestEndPoint.java       |  4 ++
 .../intellij/runConfigurations/Datanode2.xml       |  2 +-
 .../intellij/runConfigurations/Datanode3.xml       |  2 +-
 .../org/apache/hadoop/ozone/MiniOzoneCluster.java  |  1 +
 .../apache/hadoop/ozone/MiniOzoneClusterImpl.java  |  3 ++
 .../apache/hadoop/ozone/TestMiniOzoneCluster.java  |  2 +
 .../server/TestSecureContainerServer.java          |  2 +
 24 files changed, 220 insertions(+), 15 deletions(-)

diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/protocol/DatanodeDetails.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/protocol/DatanodeDetails.java
index aef3c29..835a82c 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/protocol/DatanodeDetails.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/protocol/DatanodeDetails.java
@@ -273,8 +273,10 @@ public class DatanodeDetails extends NodeImpl implements
         return port;
       }
     }
-    // if no separate admin/server port, return single Ratis one for compat
-    if (name == Name.RATIS_ADMIN || name == Name.RATIS_SERVER) {
+    // if no separate admin/server/datastream port, return single Ratis one for
+    // compat
+    if (name == Name.RATIS_ADMIN || name == Name.RATIS_SERVER ||
+        name == Name.RATIS_DATASTREAM) {
       return getPort(Name.RATIS);
     }
     return null;
@@ -783,7 +785,8 @@ public class DatanodeDetails extends NodeImpl implements
      * Ports that are supported in DataNode.
      */
     public enum Name {
-      STANDALONE, RATIS, REST, REPLICATION, RATIS_ADMIN, RATIS_SERVER;
+      STANDALONE, RATIS, REST, REPLICATION, RATIS_ADMIN, RATIS_SERVER,
+      RATIS_DATASTREAM;
 
       public static final Set<Name> ALL_PORTS = ImmutableSet.copyOf(
           Name.values());
diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/ratis/RatisHelper.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/ratis/RatisHelper.java
index e310cc9..138eacd 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/ratis/RatisHelper.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/ratis/RatisHelper.java
@@ -43,6 +43,7 @@ import org.apache.ratis.client.RaftClient;
 import org.apache.ratis.client.RaftClientConfigKeys;
 import org.apache.ratis.conf.Parameters;
 import org.apache.ratis.conf.RaftProperties;
+import org.apache.ratis.datastream.SupportedDataStreamType;
 import org.apache.ratis.grpc.GrpcConfigKeys;
 import org.apache.ratis.grpc.GrpcTlsConfig;
 import org.apache.ratis.proto.RaftProtos;
@@ -118,7 +119,9 @@ public final class RatisHelper {
         .setId(toRaftPeerId(dn))
         .setAddress(toRaftPeerAddress(dn, Port.Name.RATIS_SERVER))
         .setAdminAddress(toRaftPeerAddress(dn, Port.Name.RATIS_ADMIN))
-        .setClientAddress(toRaftPeerAddress(dn, Port.Name.RATIS));
+        .setClientAddress(toRaftPeerAddress(dn, Port.Name.RATIS))
+        .setDataStreamAddress(
+            toRaftPeerAddress(dn, Port.Name.RATIS_DATASTREAM));
   }
 
   private static List<RaftPeer> toRaftPeers(Pipeline pipeline) {
@@ -172,6 +175,7 @@ public final class RatisHelper {
       ConfigurationSource ozoneConfiguration) throws IOException {
     return newRaftClient(rpcType,
         toRaftPeerId(pipeline.getLeaderNode()),
+        toRaftPeer(pipeline.getFirstNode()),
         newRaftGroup(RaftGroupId.valueOf(pipeline.getId().getId()),
             pipeline.getNodes()), retryPolicy, tlsConfig, ozoneConfiguration);
   }
@@ -191,7 +195,7 @@ public final class RatisHelper {
   public static RaftClient newRaftClient(RpcType rpcType, RaftPeer leader,
       RetryPolicy retryPolicy, GrpcTlsConfig tlsConfig,
       ConfigurationSource configuration) {
-    return newRaftClient(rpcType, leader.getId(),
+    return newRaftClient(rpcType, leader.getId(), leader,
         newRaftGroup(Collections.singletonList(leader)), retryPolicy,
         tlsConfig, configuration);
   }
@@ -199,14 +203,14 @@ public final class RatisHelper {
   public static RaftClient newRaftClient(RpcType rpcType, RaftPeer leader,
       RetryPolicy retryPolicy,
       ConfigurationSource ozoneConfiguration) {
-    return newRaftClient(rpcType, leader.getId(),
+    return newRaftClient(rpcType, leader.getId(), leader,
         newRaftGroup(Collections.singletonList(leader)), retryPolicy, null,
         ozoneConfiguration);
   }
 
   @SuppressWarnings("checkstyle:ParameterNumber")
   private static RaftClient newRaftClient(RpcType rpcType, RaftPeerId leader,
-      RaftGroup group, RetryPolicy retryPolicy,
+      RaftPeer primary, RaftGroup group, RetryPolicy retryPolicy,
       GrpcTlsConfig tlsConfig, ConfigurationSource ozoneConfiguration) {
     if (LOG.isTraceEnabled()) {
       LOG.trace("newRaftClient: {}, leader={}, group={}",
@@ -214,6 +218,9 @@ public final class RatisHelper {
     }
     final RaftProperties properties = new RaftProperties();
 
+    RaftConfigKeys.DataStream.setType(properties,
+        SupportedDataStreamType.NETTY);
+
     RaftConfigKeys.Rpc.setType(properties, rpcType);
 
     // Set the ratis client headers which are matching with regex.
@@ -223,6 +230,7 @@ public final class RatisHelper {
         .setRaftGroup(group)
         .setLeaderId(leader)
         .setProperties(properties)
+        .setPrimaryDataStreamServer(primary)
         .setRetryPolicy(retryPolicy);
 
     // TODO: GRPC TLS only for now, netty/hadoop RPC TLS support later.
diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java
index 3c97d05..15efc43 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java
@@ -57,6 +57,12 @@ public final class OzoneConfigKeys {
   public static final boolean DFS_CONTAINER_IPC_RANDOM_PORT_DEFAULT =
       false;
 
+  public static final String DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT =
+      "dfs.container.ratis.datastream.random.port";
+  public static final boolean
+      DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT_DEFAULT =
+      false;
+
   public static final String DFS_CONTAINER_CHUNK_WRITE_SYNC_KEY =
       "dfs.container.chunk.write.sync";
   public static final boolean DFS_CONTAINER_CHUNK_WRITE_SYNC_DEFAULT = false;
@@ -80,6 +86,18 @@ public final class OzoneConfigKeys {
   public static final int DFS_CONTAINER_RATIS_SERVER_PORT_DEFAULT = 9856;
 
   /**
+   * Ratis Port where containers listen to datastream requests.
+   */
+  public static final String DFS_CONTAINER_RATIS_DATASTREAM_ENABLE
+      = "dfs.container.ratis.datastream.enable";
+  public static final boolean DFS_CONTAINER_RATIS_DATASTREAM_ENABLE_DEFAULT
+      = true;
+  public static final String DFS_CONTAINER_RATIS_DATASTREAM_PORT
+      = "dfs.container.ratis.datastream.port";
+  public static final int DFS_CONTAINER_RATIS_DATASTREAM_PORT_DEFAULT
+      = 9855;
+
+  /**
    * When set to true, allocate a random free port for ozone container, so that
    * a mini cluster is able to launch multiple containers on a node.
    */
diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/audit/DNAction.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/audit/DNAction.java
index 1c87f2b..73aff9a 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/audit/DNAction.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/audit/DNAction.java
@@ -38,7 +38,8 @@ public enum DNAction implements AuditAction {
   PUT_SMALL_FILE,
   GET_SMALL_FILE,
   CLOSE_CONTAINER,
-  GET_COMMITTED_BLOCK_LENGTH;
+  GET_COMMITTED_BLOCK_LENGTH,
+  STREAM_INIT;
 
   @Override
   public String getAction() {
diff --git a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerCommandRequestPBHelper.java b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerCommandRequestPBHelper.java
index 7773828..b2f4674 100644
--- a/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerCommandRequestPBHelper.java
+++ b/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerCommandRequestPBHelper.java
@@ -187,6 +187,7 @@ public final class ContainerCommandRequestPBHelper {
     case GetSmallFile     : return DNAction.GET_SMALL_FILE;
     case CloseContainer   : return DNAction.CLOSE_CONTAINER;
     case GetCommittedBlockLength : return DNAction.GET_COMMITTED_BLOCK_LENGTH;
+    case StreamInit       : return DNAction.STREAM_INIT;
     default :
       LOG.debug("Invalid command type - {}", cmdType);
       return null;
diff --git a/hadoop-hdds/common/src/main/resources/ozone-default.xml b/hadoop-hdds/common/src/main/resources/ozone-default.xml
index 0755b94..59cf64c 100644
--- a/hadoop-hdds/common/src/main/resources/ozone-default.xml
+++ b/hadoop-hdds/common/src/main/resources/ozone-default.xml
@@ -54,6 +54,26 @@
     <description>The ipc port number of container.</description>
   </property>
   <property>
+    <name>dfs.container.ratis.datastream.enable</name>
+    <value>true</value>
+    <tag>OZONE, CONTAINER, RATIS, DATASTREAM</tag>
+    <description>If enable datastream ipc of container.</description>
+  </property>
+  <property>
+    <name>dfs.container.ratis.datastream.port</name>
+    <value>9855</value>
+    <tag>OZONE, CONTAINER, RATIS, DATASTREAM</tag>
+    <description>The datastream port number of container.</description>
+  </property>
+  <property>
+    <name>dfs.container.ratis.datastream.random.port</name>
+    <value>false</value>
+    <tag>OZONE, CONTAINER, RATIS, DATASTREAM</tag>
+    <description>Allocates a random free port for ozone container datastream.
+      This is used only while running unit tests.
+    </description>
+  </property>
+  <property>
     <name>dfs.container.ipc.random.port</name>
     <value>false</value>
     <tag>OZONE, DEBUG, CONTAINER</tag>
diff --git a/hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigTag.java b/hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigTag.java
index 8cf584d..3728a0b 100644
--- a/hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigTag.java
+++ b/hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigTag.java
@@ -46,5 +46,6 @@ public enum ConfigTag {
   DELETION,
   HA,
   BALANCER,
-  UPGRADE
+  UPGRADE,
+  DATASTREAM
 }
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/HddsDispatcher.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/HddsDispatcher.java
index 5d03d60..72a8107 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/HddsDispatcher.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/HddsDispatcher.java
@@ -199,7 +199,8 @@ public class HddsDispatcher implements ContainerDispatcher, Auditor {
     boolean isWriteStage =
         (cmdType == Type.WriteChunk && dispatcherContext != null
             && dispatcherContext.getStage()
-            == DispatcherContext.WriteChunkStage.WRITE_DATA);
+            == DispatcherContext.WriteChunkStage.WRITE_DATA)
+            || (cmdType == Type.StreamInit);
     boolean isWriteCommitStage =
         (cmdType == Type.WriteChunk && dispatcherContext != null
             && dispatcherContext.getStage()
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/XceiverServerRatis.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/XceiverServerRatis.java
index 97d712e..060ce3c 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/XceiverServerRatis.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/XceiverServerRatis.java
@@ -77,6 +77,7 @@ import io.opentracing.util.GlobalTracer;
 import org.apache.ratis.RaftConfigKeys;
 import org.apache.ratis.conf.Parameters;
 import org.apache.ratis.conf.RaftProperties;
+import org.apache.ratis.datastream.SupportedDataStreamType;
 import org.apache.ratis.grpc.GrpcConfigKeys;
 import org.apache.ratis.grpc.GrpcTlsConfig;
 import org.apache.ratis.netty.NettyConfigKeys;
@@ -96,6 +97,7 @@ import org.apache.ratis.protocol.RaftGroupMemberId;
 import org.apache.ratis.protocol.RaftPeerId;
 import org.apache.ratis.rpc.RpcType;
 import org.apache.ratis.rpc.SupportedRpcType;
+import org.apache.ratis.server.DataStreamServerRpc;
 import org.apache.ratis.server.RaftServer;
 import org.apache.ratis.server.RaftServerConfigKeys;
 import org.apache.ratis.server.RaftServerRpc;
@@ -127,6 +129,7 @@ public final class XceiverServerRatis implements XceiverServerSpi {
   private int serverPort;
   private int adminPort;
   private int clientPort;
+  private int dataStreamPort;
   private final RaftServer server;
   private final List<ThreadPoolExecutor> chunkExecutors;
   private final ContainerDispatcher dispatcher;
@@ -146,6 +149,7 @@ public final class XceiverServerRatis implements XceiverServerSpi {
   // Timeout used while calling submitRequest directly.
   private long requestTimeout;
   private boolean shouldDeleteRatisLogDirectory;
+  private boolean streamEnable;
 
   private XceiverServerRatis(DatanodeDetails dd,
       ContainerDispatcher dispatcher, ContainerController containerController,
@@ -155,6 +159,9 @@ public final class XceiverServerRatis implements XceiverServerSpi {
     Objects.requireNonNull(dd, "id == null");
     datanodeDetails = dd;
     assignPorts();
+    this.streamEnable = conf.getBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_ENABLE,
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_ENABLE_DEFAULT);
     RaftProperties serverProperties = newRaftProperties();
     this.context = context;
     this.dispatcher = dispatcher;
@@ -210,6 +217,34 @@ public final class XceiverServerRatis implements XceiverServerSpi {
         chunkExecutors, this, conf);
   }
 
+  private void setUpRatisStream(RaftProperties properties) {
+    // set the datastream config
+    if (conf.getBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT,
+        OzoneConfigKeys.
+            DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT_DEFAULT)) {
+      dataStreamPort = 0;
+    } else {
+      dataStreamPort = conf.getInt(
+          OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_PORT,
+          OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_PORT_DEFAULT);
+    }
+    NettyConfigKeys.DataStream.setPort(properties, dataStreamPort);
+    RaftConfigKeys.DataStream.setType(properties,
+        SupportedDataStreamType.NETTY);
+    int dataStreamAsyncRequestThreadPoolSize =
+        conf.getObject(DatanodeRatisServerConfig.class)
+            .getStreamRequestThreads();
+    RaftServerConfigKeys.DataStream.setAsyncRequestThreadPoolSize(properties,
+        dataStreamAsyncRequestThreadPoolSize);
+    int dataStreamWriteRequestThreadPoolSize =
+        conf.getObject(DatanodeRatisServerConfig.class)
+            .getStreamWriteThreads();
+    RaftServerConfigKeys.DataStream.setAsyncWriteThreadPoolSize(properties,
+        dataStreamWriteRequestThreadPoolSize);
+  }
+
+  @SuppressWarnings("checkstyle:methodlength")
   private RaftProperties newRaftProperties() {
     final RaftProperties properties = new RaftProperties();
 
@@ -228,6 +263,10 @@ public final class XceiverServerRatis implements XceiverServerSpi {
 
     // set the configs enable and set the stateMachineData sync timeout
     RaftServerConfigKeys.Log.StateMachineData.setSync(properties, true);
+    if (streamEnable) {
+      setUpRatisStream(properties);
+    }
+
     timeUnit = OzoneConfigKeys.
         DFS_CONTAINER_RATIS_STATEMACHINEDATA_SYNC_TIMEOUT_DEFAULT.getUnit();
     duration = conf.getTimeDuration(
@@ -491,7 +530,12 @@ public final class XceiverServerRatis implements XceiverServerSpi {
           Port.Name.RATIS_ADMIN);
       serverPort = getRealPort(serverRpc.getInetSocketAddress(),
           Port.Name.RATIS_SERVER);
-
+      if (streamEnable) {
+        DataStreamServerRpc dataStreamServerRpc =
+            server.getDataStreamServerRpc();
+        dataStreamPort = getRealPort(dataStreamServerRpc.getInetSocketAddress(),
+            Port.Name.RATIS_DATASTREAM);
+      }
       isStarted = true;
     }
   }
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
index 1d2c7c7..3cf290c 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
@@ -98,6 +98,7 @@ import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuil
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.getReadChunkResponse;
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.getReadContainerResponse;
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.getSuccessResponse;
+import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.getSuccessResponseBuilder;
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.malformedRequest;
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.putBlockResponseSuccess;
 import static org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders.unsupportedRequest;
@@ -212,6 +213,8 @@ public class KeyValueHandler extends Handler {
       return handler.handleDeleteChunk(request, kvContainer);
     case WriteChunk:
       return handler.handleWriteChunk(request, kvContainer, dispatcherContext);
+    case StreamInit:
+      return handler.handleStreamInit(request, kvContainer, dispatcherContext);
     case ListChunk:
       return handler.handleUnsupportedOp(request);
     case CompactChunk:
@@ -238,6 +241,36 @@ public class KeyValueHandler extends Handler {
     return this.blockManager;
   }
 
+  ContainerCommandResponseProto handleStreamInit(
+      ContainerCommandRequestProto request, KeyValueContainer kvContainer,
+      DispatcherContext dispatcherContext) {
+    if (!request.hasWriteChunk()) {
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("Malformed Write Chunk request. trace ID: {}",
+            request.getTraceID());
+      }
+      return malformedRequest(request);
+    }
+
+    String path = null;
+    try {
+      checkContainerOpen(kvContainer);
+
+      WriteChunkRequestProto writeChunk = request.getWriteChunk();
+      BlockID blockID = BlockID.getFromProtobuf(writeChunk.getBlockID());
+
+      path = chunkManager
+          .streamInit(kvContainer, blockID);
+
+    } catch (StorageContainerException ex) {
+      return ContainerUtils.logAndReturnError(LOG, ex, request);
+    }
+
+    return getSuccessResponseBuilder(request)
+        .setMessage(path)
+        .build();
+  }
+
   /**
    * Handles Create Container Request. If successful, adds the container to
    * ContainerSet and sends an ICR to the SCM.
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/ChunkManagerDispatcher.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/ChunkManagerDispatcher.java
index 27fe0d9..92d2606 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/ChunkManagerDispatcher.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/ChunkManagerDispatcher.java
@@ -74,6 +74,12 @@ public class ChunkManagerDispatcher implements ChunkManager {
         .writeChunk(container, blockID, info, data, dispatcherContext);
   }
 
+  public String streamInit(Container container, BlockID blockID)
+      throws StorageContainerException {
+    return selectHandler(container)
+        .streamInit(container, blockID);
+  }
+
   @Override
   public void finishWriteChunks(KeyValueContainer kvContainer,
       BlockData blockData) throws IOException {
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/FilePerBlockStrategy.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/FilePerBlockStrategy.java
index 5fd23b5..8b13c93 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/FilePerBlockStrategy.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/FilePerBlockStrategy.java
@@ -90,6 +90,14 @@ public class FilePerBlockStrategy implements ChunkManager {
   }
 
   @Override
+  public String streamInit(Container container, BlockID blockID)
+      throws StorageContainerException {
+    checkLayoutVersion(container);
+    File chunkFile = getChunkFile(container, blockID, null);
+    return chunkFile.getAbsolutePath();
+  }
+
+  @Override
   public void writeChunk(Container container, BlockID blockID, ChunkInfo info,
       ChunkBuffer data, DispatcherContext dispatcherContext)
       throws StorageContainerException {
diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/interfaces/ChunkManager.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/interfaces/ChunkManager.java
index 15ff9d6..ba06eeb 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/interfaces/ChunkManager.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/interfaces/ChunkManager.java
@@ -104,6 +104,11 @@ public interface ChunkManager {
     // no-op
   }
 
+  default String streamInit(Container container, BlockID blockID)
+      throws StorageContainerException {
+    return null;
+  }
+
   static long getBufferCapacityForChunkRead(ChunkInfo chunkInfo,
       long defaultReadBufferCapacity) {
     long bufferCapacity = 0;
diff --git a/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/TestDatanodeStateMachine.java b/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/TestDatanodeStateMachine.java
index 82c9e6e..00db161 100644
--- a/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/TestDatanodeStateMachine.java
+++ b/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/TestDatanodeStateMachine.java
@@ -81,6 +81,8 @@ public class TestDatanodeStateMachine {
         TimeUnit.MILLISECONDS);
     conf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_RANDOM_PORT, true);
     conf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_IPC_RANDOM_PORT, true);
+    conf.setBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT, true);
     serverAddresses = new ArrayList<>();
     scmServers = new ArrayList<>();
     mockServers = new ArrayList<>();
@@ -215,7 +217,6 @@ public class TestDatanodeStateMachine {
         OzoneConfigKeys.DFS_CONTAINER_IPC_PORT_DEFAULT);
     datanodeDetails.setPort(port);
     ContainerUtils.writeDatanodeDetailsTo(datanodeDetails, idPath);
-
     try (DatanodeStateMachine stateMachine =
              new DatanodeStateMachine(datanodeDetails, conf, null, null,
                  null)) {
@@ -429,6 +430,8 @@ public class TestDatanodeStateMachine {
         DatanodeDetails.Port.Name.RATIS, 0);
     DatanodeDetails.Port restPort = DatanodeDetails.newPort(
         DatanodeDetails.Port.Name.REST, 0);
+    DatanodeDetails.Port streamPort = DatanodeDetails.newPort(
+        DatanodeDetails.Port.Name.RATIS_DATASTREAM, 0);
     return DatanodeDetails.newBuilder()
         .setUuid(UUID.randomUUID())
         .setHostName("localhost")
@@ -436,6 +439,7 @@ public class TestDatanodeStateMachine {
         .addPort(containerPort)
         .addPort(ratisPort)
         .addPort(restPort)
+        .addPort(streamPort)
         .build();
   }
 }
diff --git a/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCreatePipelineCommandHandler.java b/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCreatePipelineCommandHandler.java
index d23f1c4..ce62640 100644
--- a/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCreatePipelineCommandHandler.java
+++ b/hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCreatePipelineCommandHandler.java
@@ -38,6 +38,7 @@ import org.apache.ratis.client.api.GroupManagementApi;
 import org.apache.ratis.conf.RaftProperties;
 import org.apache.ratis.protocol.ClientId;
 import org.apache.ratis.protocol.RaftGroup;
+import org.apache.ratis.protocol.RaftPeer;
 import org.apache.ratis.protocol.RaftPeerId;
 import org.apache.ratis.retry.RetryPolicy;
 import org.junit.Before;
@@ -98,6 +99,8 @@ public class TestCreatePipelineCommandHandler {
         .thenReturn(builder);
     Mockito.when(builder.setRetryPolicy(Mockito.any(RetryPolicy.class)))
         .thenReturn(builder);
+    Mockito.when(builder.setPrimaryDataStreamServer(
+        Mockito.any(RaftPeer.class))).thenReturn(builder);
     return builder;
   }
 
diff --git a/hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/conf/DatanodeRatisServerConfig.java b/hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/conf/DatanodeRatisServerConfig.java
index 8392789..8ec37ac 100644
--- a/hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/conf/DatanodeRatisServerConfig.java
+++ b/hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/conf/DatanodeRatisServerConfig.java
@@ -23,6 +23,7 @@ import org.apache.ratis.server.RaftServerConfigKeys;
 import java.time.Duration;
 
 import static org.apache.hadoop.hdds.conf.ConfigTag.DATANODE;
+import static org.apache.hadoop.hdds.conf.ConfigTag.DATASTREAM;
 import static org.apache.hadoop.hdds.conf.ConfigTag.OZONE;
 import static org.apache.hadoop.hdds.conf.ConfigTag.PERFORMANCE;
 import static org.apache.hadoop.hdds.conf.ConfigTag.RATIS;
@@ -123,6 +124,40 @@ public class DatanodeRatisServerConfig {
     this.leaderNumPendingRequests = leaderNumPendingRequests;
   }
 
+  @Config(key = "datastream.request.threads",
+      defaultValue = "20",
+      type = ConfigType.INT,
+      tags = {OZONE, DATANODE, RATIS, DATASTREAM},
+      description = "Maximum number of threads in the thread pool for " +
+          "datastream request."
+  )
+  private int streamRequestThreads;
+
+  public int getStreamRequestThreads() {
+    return streamRequestThreads;
+  }
+
+  public void setStreamRequestThreads(int streamRequestThreads) {
+    this.streamRequestThreads = streamRequestThreads;
+  }
+
+  @Config(key = "datastream.write.threads",
+      defaultValue = "20",
+      type = ConfigType.INT,
+      tags = {OZONE, DATANODE, RATIS, DATASTREAM},
+      description = "Maximum number of threads in the thread pool for " +
+          "datastream write."
+  )
+  private int streamWriteThreads;
+
+  public int getStreamWriteThreads() {
+    return streamWriteThreads;
+  }
+
+  public void setStreamWriteThreads(int streamWriteThreads) {
+    this.streamWriteThreads = streamWriteThreads;
+  }
+
   @Config(key = "delete.ratis.log.directory",
           defaultValue = "true",
           type = ConfigType.BOOLEAN,
diff --git a/hadoop-hdds/interface-client/src/main/proto/DatanodeClientProtocol.proto b/hadoop-hdds/interface-client/src/main/proto/DatanodeClientProtocol.proto
index 9f57e14..90ecbfc 100644
--- a/hadoop-hdds/interface-client/src/main/proto/DatanodeClientProtocol.proto
+++ b/hadoop-hdds/interface-client/src/main/proto/DatanodeClientProtocol.proto
@@ -100,6 +100,8 @@ enum Type {
   GetSmallFile = 16;
   CloseContainer = 17;
   GetCommittedBlockLength = 18;
+
+  StreamInit = 19;
 }
 
 
@@ -392,7 +394,7 @@ enum ChecksumType {
 
 message  WriteChunkRequestProto  {
   required DatanodeBlockID blockID = 1;
-  required ChunkInfo chunkData = 2;
+  optional ChunkInfo chunkData = 2;
   optional bytes data = 3;
 }
 
diff --git a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/common/TestEndPoint.java b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/common/TestEndPoint.java
index dc11ece..92fefc7 100644
--- a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/common/TestEndPoint.java
+++ b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/ozone/container/common/TestEndPoint.java
@@ -145,6 +145,8 @@ public class TestEndPoint {
     try (EndpointStateMachine rpcEndPoint = createEndpoint(conf,
         serverAddress, 1000)) {
       DatanodeDetails datanodeDetails = randomDatanodeDetails();
+      conf.setBoolean(
+          OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT, true);
       OzoneContainer ozoneContainer = new OzoneContainer(
           datanodeDetails, conf, getContext(datanodeDetails), null);
       rpcEndPoint.setState(EndpointStateMachine.EndPointStates.GETVERSION);
@@ -169,6 +171,8 @@ public class TestEndPoint {
         true);
     conf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_RANDOM_PORT,
         true);
+    conf.setBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT, true);
     conf.setFromObject(new ReplicationConfig().setPort(0));
     try (EndpointStateMachine rpcEndPoint = createEndpoint(conf,
         serverAddress, 1000)) {
diff --git a/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode2.xml b/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode2.xml
index 3d33020..040b515 100644
--- a/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode2.xml
+++ b/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode2.xml
@@ -18,7 +18,7 @@
   <configuration default="false" name="Datanode2" type="Application" factoryName="Application">
     <option name="MAIN_CLASS_NAME" value="org.apache.hadoop.ozone.HddsDatanodeService" />
     <module name="ozone-datanode" />
-    <option name="PROGRAM_PARAMETERS" value="-conf=hadoop-ozone/dev-support/intellij/ozone-site.xml --set ozone.metadata.dirs=/tmp/datanode2 --set hdds.datanode.dir=/tmp/datanode2/storage --set hdds.datanode.http-address=127.0.0.1:10021 --set dfs.container.ratis.ipc=10022 --set dfs.container.ipc=10023 --set dfs.container.ratis.server.port=10024 --set dfs.container.ratis.admin.port=10025 --set hdds.datanode.replication.port=10026" />
+    <option name="PROGRAM_PARAMETERS" value="-conf=hadoop-ozone/dev-support/intellij/ozone-site.xml --set ozone.metadata.dirs=/tmp/datanode2 --set hdds.datanode.dir=/tmp/datanode2/storage --set hdds.datanode.http-address=127.0.0.1:10021 --set dfs.container.ratis.ipc=10022 --set dfs.container.ipc=10023 --set dfs.container.ratis.server.port=10024 --set dfs.container.ratis.admin.port=10025 --set hdds.datanode.replication.port=10026 --set dfs.container.ratis.datastream.port=10027" />
     <option name="VM_PARAMETERS" value="-Dlog4j.configuration=file:hadoop-ozone/dev-support/intellij/log4j.properties" />
     <extension name="coverage">
       <pattern>
diff --git a/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode3.xml b/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode3.xml
index 10b6682..6a3116e 100644
--- a/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode3.xml
+++ b/hadoop-ozone/dev-support/intellij/runConfigurations/Datanode3.xml
@@ -18,7 +18,7 @@
   <configuration default="false" name="Datanode3" type="Application" factoryName="Application">
     <option name="MAIN_CLASS_NAME" value="org.apache.hadoop.ozone.HddsDatanodeService" />
     <module name="ozone-datanode" />
-    <option name="PROGRAM_PARAMETERS" value="-conf=hadoop-ozone/dev-support/intellij/ozone-site.xml --set ozone.metadata.dirs=/tmp/datanode3 --set hdds.datanode.dir=/tmp/datanode3/storage --set hdds.datanode.http-address=127.0.0.1:10031 --set dfs.container.ratis.ipc=10032 --set dfs.container.ipc=10033 --set dfs.container.ratis.server.port=10034 --set dfs.container.ratis.admin.port=10035 --set hdds.datanode.replication.port=10036" />
+    <option name="PROGRAM_PARAMETERS" value="-conf=hadoop-ozone/dev-support/intellij/ozone-site.xml --set ozone.metadata.dirs=/tmp/datanode3 --set hdds.datanode.dir=/tmp/datanode3/storage --set hdds.datanode.http-address=127.0.0.1:10031 --set dfs.container.ratis.ipc=10032 --set dfs.container.ipc=10033 --set dfs.container.ratis.server.port=10034 --set dfs.container.ratis.admin.port=10035 --set hdds.datanode.replication.port=10036 --set dfs.container.ratis.datastream.port=10037" />
     <option name="VM_PARAMETERS" value="-Dlog4j.configuration=file:hadoop-ozone/dev-support/intellij/log4j.properties" />
     <extension name="coverage">
       <pattern>
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneCluster.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneCluster.java
index 9057920..67f360f 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneCluster.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneCluster.java
@@ -315,6 +315,7 @@ public interface MiniOzoneCluster {
     protected Optional<String> omId = Optional.empty();
     
     protected Boolean randomContainerPort = true;
+    protected Boolean randomContainerStreamPort = true;
     protected Optional<Integer> chunkSize = Optional.empty();
     protected OptionalInt streamBufferSize = OptionalInt.empty();
     protected Optional<Long> streamBufferFlushSize = Optional.empty();
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java
index 4b2765b..a44de12 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java
@@ -86,6 +86,7 @@ import static org.apache.hadoop.hdds.scm.ScmConfig.ConfigStrings.HDDS_SCM_INIT_D
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_IPC_PORT;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_IPC_RANDOM_PORT;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_RATIS_ADMIN_PORT;
+import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_PORT;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_RANDOM_PORT;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.DFS_CONTAINER_RATIS_SERVER_PORT;
@@ -908,6 +909,8 @@ public class MiniOzoneClusterImpl implements MiniOzoneCluster {
           randomContainerPort);
       conf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_RANDOM_PORT,
           randomContainerPort);
+      conf.setBoolean(DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT,
+          randomContainerStreamPort);
 
       conf.setFromObject(new ReplicationConfig().setPort(0));
     }
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestMiniOzoneCluster.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestMiniOzoneCluster.java
index 8c51f9d..d0ab8b8 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestMiniOzoneCluster.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestMiniOzoneCluster.java
@@ -216,6 +216,8 @@ public class TestMiniOzoneCluster {
     ozoneConf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_IPC_RANDOM_PORT, true);
     ozoneConf.setBoolean(OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_RANDOM_PORT,
         true);
+    ozoneConf.setBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT, true);
     List<DatanodeStateMachine> stateMachines = new ArrayList<>();
     try {
 
diff --git a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/server/TestSecureContainerServer.java b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/server/TestSecureContainerServer.java
index f8f2d0a..1a5af25 100644
--- a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/server/TestSecureContainerServer.java
+++ b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/server/TestSecureContainerServer.java
@@ -216,6 +216,8 @@ public class TestSecureContainerServer {
       DatanodeDetails dn, OzoneConfiguration conf) throws IOException {
     conf.setInt(OzoneConfigKeys.DFS_CONTAINER_RATIS_IPC_PORT,
         dn.getPort(DatanodeDetails.Port.Name.RATIS).getValue());
+    conf.setBoolean(
+        OzoneConfigKeys.DFS_CONTAINER_RATIS_DATASTREAM_RANDOM_PORT, true);
     final String dir = TEST_DIR + dn.getUuid();
     conf.set(OzoneConfigKeys.DFS_CONTAINER_RATIS_DATANODE_STORAGE_DIR, dir);
     final ContainerDispatcher dispatcher = createDispatcher(dn,

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[ozone] 03/09: HDDS-5481. Fix stream() and link() method in ContainerStateMachine. (#2451)

Posted by sz...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

szetszwo pushed a commit to branch HDDS-4454
in repository https://gitbox.apache.org/repos/asf/ozone.git

commit 2cd909df1b0897a4d4151019a1cf5b741e8849ce
Author: Kaijie Chen <ch...@kaijie.org>
AuthorDate: Thu Jul 22 19:46:31 2021 +0800

    HDDS-5481. Fix stream() and link() method in ContainerStateMachine. (#2451)
---
 .../common/transport/server/ratis/ContainerStateMachine.java          | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
index ff6cbfc..41585a0 100644
--- a/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
+++ b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
@@ -506,8 +506,7 @@ public class ContainerStateMachine extends BaseStateMachine {
     return CompletableFuture.supplyAsync(() -> {
       try {
         ContainerCommandRequestProto requestProto =
-            getContainerCommandRequestProto(gid,
-                request.getMessage().getContent());
+            message2ContainerCommandRequestProto(request.getMessage());
         DispatcherContext context =
             new DispatcherContext.Builder()
                 .setStage(DispatcherContext.WriteChunkStage.WRITE_DATA)
@@ -524,6 +523,7 @@ public class ContainerStateMachine extends BaseStateMachine {
     }, executor);
   }
 
+  @Override
   public CompletableFuture<?> link(DataStream stream, LogEntryProto entry) {
     return CompletableFuture.supplyAsync(() -> {
       if (stream == null) {

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