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Posted to common-commits@hadoop.apache.org by su...@apache.org on 2018/09/12 10:24:12 UTC
[05/90] [abbrv] [partial] hadoop git commit: HADOOP-14671. Upgrade
Apache Yetus to 0.8.0
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.0/CHANGELOG.2.10.0.md
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+<!---
+# 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.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.10.0 - Unreleased (as of 2018-09-02)
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-12883](https://issues.apache.org/jira/browse/HDFS-12883) | RBF: Document Router and State Store metrics | Major | documentation | Yiqun Lin | Yiqun Lin |
+| [HDFS-12895](https://issues.apache.org/jira/browse/HDFS-12895) | RBF: Add ACL support for mount table | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-13099](https://issues.apache.org/jira/browse/HDFS-13099) | RBF: Use the ZooKeeper as the default State Store | Minor | documentation | Yiqun Lin | Yiqun Lin |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-13083](https://issues.apache.org/jira/browse/HDFS-13083) | RBF: Fix doc error setting up client | Major | federation | tartarus | tartarus |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-13283](https://issues.apache.org/jira/browse/HDFS-13283) | Percentage based Reserved Space Calculation for DataNode | Major | datanode, hdfs | Lukas Majercak | Lukas Majercak |
+| [HDFS-13553](https://issues.apache.org/jira/browse/HDFS-13553) | RBF: Support global quota | Major | . | Íñigo Goiri | Yiqun Lin |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-14987](https://issues.apache.org/jira/browse/HADOOP-14987) | Improve KMSClientProvider log around delegation token checking | Major | . | Xiaoyu Yao | Xiaoyu Yao |
+| [HADOOP-14872](https://issues.apache.org/jira/browse/HADOOP-14872) | CryptoInputStream should implement unbuffer | Major | fs, security | John Zhuge | John Zhuge |
+| [HADOOP-14960](https://issues.apache.org/jira/browse/HADOOP-14960) | Add GC time percentage monitor/alerter | Major | . | Misha Dmitriev | Misha Dmitriev |
+| [HADOOP-15023](https://issues.apache.org/jira/browse/HADOOP-15023) | ValueQueue should also validate (lowWatermark \* numValues) \> 0 on construction | Minor | . | Xiao Chen | Xiao Chen |
+| [YARN-6851](https://issues.apache.org/jira/browse/YARN-6851) | Capacity Scheduler: document configs for controlling # containers allowed to be allocated per node heartbeat | Minor | . | Wei Yan | Wei Yan |
+| [YARN-7495](https://issues.apache.org/jira/browse/YARN-7495) | Improve robustness of the AggregatedLogDeletionService | Major | log-aggregation | Jonathan Eagles | Jonathan Eagles |
+| [HADOOP-15056](https://issues.apache.org/jira/browse/HADOOP-15056) | Fix TestUnbuffer#testUnbufferException failure | Minor | test | Jack Bearden | Jack Bearden |
+| [HADOOP-15012](https://issues.apache.org/jira/browse/HADOOP-15012) | Add readahead, dropbehind, and unbuffer to StreamCapabilities | Major | fs | John Zhuge | John Zhuge |
+| [HADOOP-15104](https://issues.apache.org/jira/browse/HADOOP-15104) | AliyunOSS: change the default value of max error retry | Major | fs/oss | wujinhu | wujinhu |
+| [YARN-7642](https://issues.apache.org/jira/browse/YARN-7642) | Add test case to verify context update after container promotion or demotion with or without auto update | Minor | nodemanager | Weiwei Yang | Weiwei Yang |
+| [HADOOP-15111](https://issues.apache.org/jira/browse/HADOOP-15111) | AliyunOSS: backport HADOOP-14993 to branch-2 | Major | fs/oss | Genmao Yu | Genmao Yu |
+| [HDFS-12818](https://issues.apache.org/jira/browse/HDFS-12818) | Support multiple storages in DataNodeCluster / SimulatedFSDataset | Minor | datanode, test | Erik Krogen | Erik Krogen |
+| [HDFS-9023](https://issues.apache.org/jira/browse/HDFS-9023) | When NN is not able to identify DN for replication, reason behind it can be logged | Critical | hdfs-client, namenode | Surendra Singh Lilhore | Xiao Chen |
+| [YARN-7678](https://issues.apache.org/jira/browse/YARN-7678) | Ability to enable logging of container memory stats | Major | nodemanager | Jim Brennan | Jim Brennan |
+| [HDFS-12945](https://issues.apache.org/jira/browse/HDFS-12945) | Switch to ClientProtocol instead of NamenodeProtocols in NamenodeWebHdfsMethods | Minor | . | Wei Yan | Wei Yan |
+| [YARN-7622](https://issues.apache.org/jira/browse/YARN-7622) | Allow fair-scheduler configuration on HDFS | Minor | fairscheduler, resourcemanager | Greg Phillips | Greg Phillips |
+| [YARN-7590](https://issues.apache.org/jira/browse/YARN-7590) | Improve container-executor validation check | Major | security, yarn | Eric Yang | Eric Yang |
+| [MAPREDUCE-7029](https://issues.apache.org/jira/browse/MAPREDUCE-7029) | FileOutputCommitter is slow on filesystems lacking recursive delete | Minor | . | Karthik Palaniappan | Karthik Palaniappan |
+| [MAPREDUCE-6984](https://issues.apache.org/jira/browse/MAPREDUCE-6984) | MR AM to clean up temporary files from previous attempt in case of no recovery | Major | applicationmaster | Gergo Repas | Gergo Repas |
+| [HADOOP-15189](https://issues.apache.org/jira/browse/HADOOP-15189) | backport HADOOP-15039 to branch-2 and branch-3 | Blocker | . | Genmao Yu | Genmao Yu |
+| [HADOOP-15212](https://issues.apache.org/jira/browse/HADOOP-15212) | Add independent secret manager method for logging expired tokens | Major | security | Daryn Sharp | Daryn Sharp |
+| [YARN-7728](https://issues.apache.org/jira/browse/YARN-7728) | Expose container preemptions related information in Capacity Scheduler queue metrics | Major | . | Eric Payne | Eric Payne |
+| [MAPREDUCE-7048](https://issues.apache.org/jira/browse/MAPREDUCE-7048) | Uber AM can crash due to unknown task in statusUpdate | Major | mr-am | Peter Bacsko | Peter Bacsko |
+| [HADOOP-13972](https://issues.apache.org/jira/browse/HADOOP-13972) | ADLS to support per-store configuration | Major | fs/adl | John Zhuge | Sharad Sonker |
+| [YARN-7813](https://issues.apache.org/jira/browse/YARN-7813) | Capacity Scheduler Intra-queue Preemption should be configurable for each queue | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne |
+| [HADOOP-15235](https://issues.apache.org/jira/browse/HADOOP-15235) | Authentication Tokens should use HMAC instead of MAC | Major | security | Robert Kanter | Robert Kanter |
+| [HDFS-11187](https://issues.apache.org/jira/browse/HDFS-11187) | Optimize disk access for last partial chunk checksum of Finalized replica | Major | datanode | Wei-Chiu Chuang | Gabor Bota |
+| [HADOOP-15266](https://issues.apache.org/jira/browse/HADOOP-15266) | [branch-2] Upper/Lower case conversion support for group names in LdapGroupsMapping | Major | . | Nanda kumar | Nanda kumar |
+| [HADOOP-15279](https://issues.apache.org/jira/browse/HADOOP-15279) | increase maven heap size recommendations | Minor | build, documentation, test | Allen Wittenauer | Allen Wittenauer |
+| [HDFS-12884](https://issues.apache.org/jira/browse/HDFS-12884) | BlockUnderConstructionFeature.truncateBlock should be of type BlockInfo | Major | namenode | Konstantin Shvachko | chencan |
+| [HADOOP-15334](https://issues.apache.org/jira/browse/HADOOP-15334) | Upgrade Maven surefire plugin | Major | build | Arpit Agarwal | Arpit Agarwal |
+| [HADOOP-15312](https://issues.apache.org/jira/browse/HADOOP-15312) | Undocumented KeyProvider configuration keys | Major | . | Wei-Chiu Chuang | LiXin Ge |
+| [YARN-7623](https://issues.apache.org/jira/browse/YARN-7623) | Fix the CapacityScheduler Queue configuration documentation | Major | . | Arun Suresh | Jonathan Hung |
+| [HDFS-13314](https://issues.apache.org/jira/browse/HDFS-13314) | NameNode should optionally exit if it detects FsImage corruption | Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-13418](https://issues.apache.org/jira/browse/HDFS-13418) | NetworkTopology should be configurable when enable DFSNetworkTopology | Major | . | Tao Jie | Tao Jie |
+| [HADOOP-15394](https://issues.apache.org/jira/browse/HADOOP-15394) | Backport PowerShell NodeFencer HADOOP-14309 to branch-2 | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13462](https://issues.apache.org/jira/browse/HDFS-13462) | Add BIND\_HOST configuration for JournalNode's HTTP and RPC Servers | Major | hdfs, journal-node | Lukas Majercak | Lukas Majercak |
+| [HDFS-13492](https://issues.apache.org/jira/browse/HDFS-13492) | Limit httpfs binds to certain IP addresses in branch-2 | Major | httpfs | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [HDFS-12981](https://issues.apache.org/jira/browse/HDFS-12981) | renameSnapshot a Non-Existent snapshot to itself should throw error | Minor | hdfs | Sailesh Patel | Kitti Nanasi |
+| [HADOOP-15441](https://issues.apache.org/jira/browse/HADOOP-15441) | Log kms url and token service at debug level. | Minor | . | Wei-Chiu Chuang | Gabor Bota |
+| [YARN-8249](https://issues.apache.org/jira/browse/YARN-8249) | Few REST api's in RMWebServices are missing static user check | Critical | webapp, yarn | Sunil Govindan | Sunil Govindan |
+| [HADOOP-15486](https://issues.apache.org/jira/browse/HADOOP-15486) | Make NetworkTopology#netLock fair | Major | net | Nanda kumar | Nanda kumar |
+| [HADOOP-15449](https://issues.apache.org/jira/browse/HADOOP-15449) | Increase default timeout of ZK session to avoid frequent NameNode failover | Critical | common | Karthik Palanisamy | Karthik Palanisamy |
+| [HDFS-13602](https://issues.apache.org/jira/browse/HDFS-13602) | Add checkOperation(WRITE) checks in FSNamesystem | Major | ha, namenode | Erik Krogen | Chao Sun |
+| [HDFS-13644](https://issues.apache.org/jira/browse/HDFS-13644) | Backport HDFS-10376 to branch-2 | Major | . | Yiqun Lin | Zsolt Venczel |
+| [HDFS-13653](https://issues.apache.org/jira/browse/HDFS-13653) | Make dfs.client.failover.random.order a per nameservice configuration | Major | federation | Ekanth Sethuramalingam | Ekanth Sethuramalingam |
+| [HDFS-13714](https://issues.apache.org/jira/browse/HDFS-13714) | Fix TestNameNodePrunesMissingStorages test failures on Windows | Major | hdfs, namenode, test | Lukas Majercak | Lukas Majercak |
+| [HDFS-13719](https://issues.apache.org/jira/browse/HDFS-13719) | Docs around dfs.image.transfer.timeout are misleading | Major | . | Kitti Nanasi | Kitti Nanasi |
+| [HDFS-11060](https://issues.apache.org/jira/browse/HDFS-11060) | make DEFAULT\_MAX\_CORRUPT\_FILEBLOCKS\_RETURNED configurable | Minor | hdfs | Lantao Jin | Lantao Jin |
+| [YARN-8155](https://issues.apache.org/jira/browse/YARN-8155) | Improve ATSv2 client logging in RM and NM publisher | Major | . | Rohith Sharma K S | Abhishek Modi |
+| [HDFS-13814](https://issues.apache.org/jira/browse/HDFS-13814) | Remove super user privilege requirement for NameNode.getServiceStatus | Minor | namenode | Chao Sun | Chao Sun |
+| [YARN-8559](https://issues.apache.org/jira/browse/YARN-8559) | Expose mutable-conf scheduler's configuration in RM /scheduler-conf endpoint | Major | resourcemanager | Anna Savarin | Weiwei Yang |
+| [HDFS-13813](https://issues.apache.org/jira/browse/HDFS-13813) | Exit NameNode if dangling child inode is detected when saving FsImage | Major | hdfs, namenode | Siyao Meng | Siyao Meng |
+| [HDFS-13821](https://issues.apache.org/jira/browse/HDFS-13821) | RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache | Major | hdfs | Fei Hui | Fei Hui |
+| [HADOOP-15689](https://issues.apache.org/jira/browse/HADOOP-15689) | Add "\*.patch" into .gitignore file of branch-2 | Major | . | Rui Gao | Rui Gao |
+| [HDFS-13831](https://issues.apache.org/jira/browse/HDFS-13831) | Make block increment deletion number configurable | Major | . | Yiqun Lin | Ryan Wu |
+| [YARN-8051](https://issues.apache.org/jira/browse/YARN-8051) | TestRMEmbeddedElector#testCallbackSynchronization is flakey | Major | test | Robert Kanter | Robert Kanter |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-12052](https://issues.apache.org/jira/browse/HDFS-12052) | Set SWEBHDFS delegation token kind when ssl is enabled in HttpFS | Major | httpfs, webhdfs | Zoran Dimitrijevic | Zoran Dimitrijevic |
+| [HDFS-12318](https://issues.apache.org/jira/browse/HDFS-12318) | Fix IOException condition for openInfo in DFSInputStream | Major | . | legend | legend |
+| [HDFS-12614](https://issues.apache.org/jira/browse/HDFS-12614) | FSPermissionChecker#getINodeAttrs() throws NPE when INodeAttributesProvider configured | Major | . | Manoj Govindassamy | Manoj Govindassamy |
+| [YARN-7370](https://issues.apache.org/jira/browse/YARN-7370) | Preemption properties should be refreshable | Major | capacity scheduler, scheduler preemption | Eric Payne | Gergely Novák |
+| [YARN-7428](https://issues.apache.org/jira/browse/YARN-7428) | Add containerId to Localizer failed logs | Minor | nodemanager | Prabhu Joseph | Prabhu Joseph |
+| [HDFS-12783](https://issues.apache.org/jira/browse/HDFS-12783) | [branch-2] "dfsrouter" should use hdfsScript | Major | . | Brahma Reddy Battula | Brahma Reddy Battula |
+| [HDFS-12788](https://issues.apache.org/jira/browse/HDFS-12788) | Reset the upload button when file upload fails | Critical | ui, webhdfs | Brahma Reddy Battula | Brahma Reddy Battula |
+| [YARN-7469](https://issues.apache.org/jira/browse/YARN-7469) | Capacity Scheduler Intra-queue preemption: User can starve if newest app is exactly at user limit | Major | capacity scheduler, yarn | Eric Payne | Eric Payne |
+| [HADOOP-14982](https://issues.apache.org/jira/browse/HADOOP-14982) | Clients using FailoverOnNetworkExceptionRetry can go into a loop if they're used without authenticating with kerberos in HA env | Major | common | Peter Bacsko | Peter Bacsko |
+| [YARN-7489](https://issues.apache.org/jira/browse/YARN-7489) | ConcurrentModificationException in RMAppImpl#getRMAppMetrics | Major | capacityscheduler | Tao Yang | Tao Yang |
+| [YARN-7525](https://issues.apache.org/jira/browse/YARN-7525) | Incorrect query parameters in cluster nodes REST API document | Minor | documentation | Tao Yang | Tao Yang |
+| [HDFS-12813](https://issues.apache.org/jira/browse/HDFS-12813) | RequestHedgingProxyProvider can hide Exception thrown from the Namenode for proxy size of 1 | Major | ha | Mukul Kumar Singh | Mukul Kumar Singh |
+| [HADOOP-15045](https://issues.apache.org/jira/browse/HADOOP-15045) | ISA-L build options are documented in branch-2 | Major | build, documentation | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-15067](https://issues.apache.org/jira/browse/HADOOP-15067) | GC time percentage reported in JvmMetrics should be a gauge, not counter | Major | . | Misha Dmitriev | Misha Dmitriev |
+| [YARN-7363](https://issues.apache.org/jira/browse/YARN-7363) | ContainerLocalizer doesn't have a valid log4j config when using LinuxContainerExecutor | Major | nodemanager | Yufei Gu | Yufei Gu |
+| [HDFS-12754](https://issues.apache.org/jira/browse/HDFS-12754) | Lease renewal can hit a deadlock | Major | . | Kuhu Shukla | Kuhu Shukla |
+| [HDFS-12832](https://issues.apache.org/jira/browse/HDFS-12832) | INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit | Critical | namenode | DENG FEI | Konstantin Shvachko |
+| [HDFS-11754](https://issues.apache.org/jira/browse/HDFS-11754) | Make FsServerDefaults cache configurable. | Minor | . | Rushabh S Shah | Mikhail Erofeev |
+| [HADOOP-15042](https://issues.apache.org/jira/browse/HADOOP-15042) | Azure PageBlobInputStream.skip() can return negative value when numberOfPagesRemaining is 0 | Minor | fs/azure | Rajesh Balamohan | Rajesh Balamohan |
+| [HDFS-12638](https://issues.apache.org/jira/browse/HDFS-12638) | Delete copy-on-truncate block along with the original block, when deleting a file being truncated | Blocker | hdfs | Jiandan Yang | Konstantin Shvachko |
+| [YARN-4813](https://issues.apache.org/jira/browse/YARN-4813) | TestRMWebServicesDelegationTokenAuthentication.testDoAs fails intermittently | Major | resourcemanager | Daniel Templeton | Gergo Repas |
+| [MAPREDUCE-5124](https://issues.apache.org/jira/browse/MAPREDUCE-5124) | AM lacks flow control for task events | Major | mr-am | Jason Lowe | Peter Bacsko |
+| [YARN-7455](https://issues.apache.org/jira/browse/YARN-7455) | quote\_and\_append\_arg can overflow buffer | Major | nodemanager | Jason Lowe | Jim Brennan |
+| [YARN-5594](https://issues.apache.org/jira/browse/YARN-5594) | Handle old RMDelegationToken format when recovering RM | Major | resourcemanager | Tatyana But | Robert Kanter |
+| [HADOOP-14985](https://issues.apache.org/jira/browse/HADOOP-14985) | Remove subversion related code from VersionInfoMojo.java | Minor | build | Akira Ajisaka | Ajay Kumar |
+| [HDFS-11751](https://issues.apache.org/jira/browse/HDFS-11751) | DFSZKFailoverController daemon exits with wrong status code | Major | auto-failover | Doris Gu | Bharat Viswanadham |
+| [HDFS-12889](https://issues.apache.org/jira/browse/HDFS-12889) | Router UI is missing robots.txt file | Major | . | Bharat Viswanadham | Bharat Viswanadham |
+| [YARN-7607](https://issues.apache.org/jira/browse/YARN-7607) | Remove the trailing duplicated timestamp in container diagnostics message | Minor | nodemanager | Weiwei Yang | Weiwei Yang |
+| [HADOOP-15080](https://issues.apache.org/jira/browse/HADOOP-15080) | Aliyun OSS: update oss sdk from 2.8.1 to 2.8.3 to remove its dependency on Cat-x "json-lib" | Blocker | fs/oss | Chris Douglas | Sammi Chen |
+| [YARN-7608](https://issues.apache.org/jira/browse/YARN-7608) | Incorrect sTarget column causing DataTable warning on RM application and scheduler web page | Major | resourcemanager, webapp | Weiwei Yang | Gergely Novák |
+| [HDFS-12833](https://issues.apache.org/jira/browse/HDFS-12833) | Distcp : Update the usage of delete option for dependency with update and overwrite option | Minor | distcp, hdfs | Harshakiran Reddy | usharani |
+| [YARN-7647](https://issues.apache.org/jira/browse/YARN-7647) | NM print inappropriate error log when node-labels is enabled | Minor | . | Yang Wang | Yang Wang |
+| [HDFS-12907](https://issues.apache.org/jira/browse/HDFS-12907) | Allow read-only access to reserved raw for non-superusers | Major | namenode | Daryn Sharp | Rushabh S Shah |
+| [HDFS-12881](https://issues.apache.org/jira/browse/HDFS-12881) | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Ajay Kumar |
+| [YARN-7595](https://issues.apache.org/jira/browse/YARN-7595) | Container launching code suppresses close exceptions after writes | Major | nodemanager | Jason Lowe | Jim Brennan |
+| [HADOOP-15085](https://issues.apache.org/jira/browse/HADOOP-15085) | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Jim Brennan |
+| [HADOOP-15123](https://issues.apache.org/jira/browse/HADOOP-15123) | KDiag tries to load krb5.conf from KRB5CCNAME instead of KRB5\_CONFIG | Minor | security | Vipin Rathor | Vipin Rathor |
+| [YARN-7661](https://issues.apache.org/jira/browse/YARN-7661) | NodeManager metrics return wrong value after update node resource | Major | . | Yang Wang | Yang Wang |
+| [HDFS-12347](https://issues.apache.org/jira/browse/HDFS-12347) | TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently | Critical | test | Xiao Chen | Bharat Viswanadham |
+| [YARN-7662](https://issues.apache.org/jira/browse/YARN-7662) | [Atsv2] Define new set of configurations for reader and collectors to bind. | Major | . | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-7674](https://issues.apache.org/jira/browse/YARN-7674) | Update Timeline Reader web app address in UI2 | Major | . | Rohith Sharma K S | Sunil Govindan |
+| [YARN-7542](https://issues.apache.org/jira/browse/YARN-7542) | Fix issue that causes some Running Opportunistic Containers to be recovered as PAUSED | Major | . | Arun Suresh | Sampada Dehankar |
+| [HADOOP-15143](https://issues.apache.org/jira/browse/HADOOP-15143) | NPE due to Invalid KerberosTicket in UGI | Major | . | Jitendra Nath Pandey | Mukul Kumar Singh |
+| [YARN-7692](https://issues.apache.org/jira/browse/YARN-7692) | Skip validating priority acls while recovering applications | Blocker | resourcemanager | Charan Hebri | Sunil Govindan |
+| [MAPREDUCE-7028](https://issues.apache.org/jira/browse/MAPREDUCE-7028) | Concurrent task progress updates causing NPE in Application Master | Blocker | mr-am | Gergo Repas | Gergo Repas |
+| [YARN-7619](https://issues.apache.org/jira/browse/YARN-7619) | Max AM Resource value in Capacity Scheduler UI has to be refreshed for every user | Major | capacity scheduler, yarn | Eric Payne | Eric Payne |
+| [YARN-7699](https://issues.apache.org/jira/browse/YARN-7699) | queueUsagePercentage is coming as INF for getApp REST api call | Major | webapp | Sunil Govindan | Sunil Govindan |
+| [HDFS-12985](https://issues.apache.org/jira/browse/HDFS-12985) | NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy |
+| [YARN-4227](https://issues.apache.org/jira/browse/YARN-4227) | Ignore expired containers from removed nodes in FairScheduler | Critical | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
+| [YARN-7508](https://issues.apache.org/jira/browse/YARN-7508) | NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode | Major | capacityscheduler | Tao Yang | Tao Yang |
+| [YARN-7663](https://issues.apache.org/jira/browse/YARN-7663) | RMAppImpl:Invalid event: START at KILLED | Major | resourcemanager | lujie | lujie |
+| [YARN-6948](https://issues.apache.org/jira/browse/YARN-6948) | Invalid event: ATTEMPT\_ADDED at FINAL\_SAVING | Major | yarn | lujie | lujie |
+| [HADOOP-15060](https://issues.apache.org/jira/browse/HADOOP-15060) | TestShellBasedUnixGroupsMapping.testFiniteGroupResolutionTime flaky | Major | . | Miklos Szegedi | Miklos Szegedi |
+| [YARN-7735](https://issues.apache.org/jira/browse/YARN-7735) | Fix typo in YARN documentation | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma |
+| [YARN-7727](https://issues.apache.org/jira/browse/YARN-7727) | Incorrect log levels in few logs with QueuePriorityContainerCandidateSelector | Minor | yarn | Prabhu Joseph | Prabhu Joseph |
+| [HDFS-11915](https://issues.apache.org/jira/browse/HDFS-11915) | Sync rbw dir on the first hsync() to avoid file lost on power failure | Critical | . | Kanaka Kumar Avvaru | Vinayakumar B |
+| [YARN-7705](https://issues.apache.org/jira/browse/YARN-7705) | Create the container log directory with correct sticky bit in C code | Major | nodemanager | Yufei Gu | Yufei Gu |
+| [HDFS-9049](https://issues.apache.org/jira/browse/HDFS-9049) | Make Datanode Netty reverse proxy port to be configurable | Major | datanode | Vinayakumar B | Vinayakumar B |
+| [YARN-7758](https://issues.apache.org/jira/browse/YARN-7758) | Add an additional check to the validity of container and application ids passed to container-executor | Major | nodemanager | Miklos Szegedi | Yufei Gu |
+| [HADOOP-15150](https://issues.apache.org/jira/browse/HADOOP-15150) | in FsShell, UGI params should be overidden through env vars(-D arg) | Major | . | Brahma Reddy Battula | Brahma Reddy Battula |
+| [HADOOP-15181](https://issues.apache.org/jira/browse/HADOOP-15181) | Typo in SecureMode.md | Trivial | documentation | Masahiro Tanaka | Masahiro Tanaka |
+| [YARN-7806](https://issues.apache.org/jira/browse/YARN-7806) | Distributed Shell should use timeline async api's | Major | distributed-shell | Sumana Sathish | Rohith Sharma K S |
+| [HADOOP-15121](https://issues.apache.org/jira/browse/HADOOP-15121) | Encounter NullPointerException when using DecayRpcScheduler | Major | . | Tao Jie | Tao Jie |
+| [MAPREDUCE-7015](https://issues.apache.org/jira/browse/MAPREDUCE-7015) | Possible race condition in JHS if the job is not loaded | Major | jobhistoryserver | Peter Bacsko | Peter Bacsko |
+| [YARN-7737](https://issues.apache.org/jira/browse/YARN-7737) | prelaunch.err file not found exception on container failure | Major | . | Jonathan Hung | Keqiu Hu |
+| [HDFS-13063](https://issues.apache.org/jira/browse/HDFS-13063) | Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md | Trivial | documentation | Jianfei Jiang | Jianfei Jiang |
+| [YARN-7102](https://issues.apache.org/jira/browse/YARN-7102) | NM heartbeat stuck when responseId overflows MAX\_INT | Critical | . | Botong Huang | Botong Huang |
+| [MAPREDUCE-7041](https://issues.apache.org/jira/browse/MAPREDUCE-7041) | MR should not try to clean up at first job attempt | Major | . | Takanobu Asanuma | Gergo Repas |
+| [MAPREDUCE-7020](https://issues.apache.org/jira/browse/MAPREDUCE-7020) | Task timeout in uber mode can crash AM | Major | mr-am | Akira Ajisaka | Peter Bacsko |
+| [YARN-7765](https://issues.apache.org/jira/browse/YARN-7765) | [Atsv2] GSSException: No valid credentials provided - Failed to find any Kerberos tgt thrown by Timelinev2Client & HBaseClient in NM | Blocker | . | Sumana Sathish | Rohith Sharma K S |
+| [HDFS-12974](https://issues.apache.org/jira/browse/HDFS-12974) | Exception message is not printed when creating an encryption zone fails with AuthorizationException | Minor | encryption | fang zhenyi | fang zhenyi |
+| [YARN-7698](https://issues.apache.org/jira/browse/YARN-7698) | A misleading variable's name in ApplicationAttemptEventDispatcher | Minor | resourcemanager | Jinjiang Ling | Jinjiang Ling |
+| [HDFS-12528](https://issues.apache.org/jira/browse/HDFS-12528) | Add an option to not disable short-circuit reads on failures | Major | hdfs-client, performance | Andre Araujo | Xiao Chen |
+| [HDFS-13100](https://issues.apache.org/jira/browse/HDFS-13100) | Handle IllegalArgumentException when GETSERVERDEFAULTS is not implemented in webhdfs. | Critical | hdfs, webhdfs | Yongjun Zhang | Yongjun Zhang |
+| [YARN-7849](https://issues.apache.org/jira/browse/YARN-7849) | TestMiniYarnClusterNodeUtilization#testUpdateNodeUtilization fails due to heartbeat sync error | Major | test | Jason Lowe | Botong Huang |
+| [YARN-7801](https://issues.apache.org/jira/browse/YARN-7801) | AmFilterInitializer should addFilter after fill all parameters | Critical | . | Sumana Sathish | Wangda Tan |
+| [YARN-7890](https://issues.apache.org/jira/browse/YARN-7890) | NPE during container relaunch | Major | . | Billie Rinaldi | Jason Lowe |
+| [HDFS-13115](https://issues.apache.org/jira/browse/HDFS-13115) | In getNumUnderConstructionBlocks(), ignore the inodeIds for which the inodes have been deleted | Major | . | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-12935](https://issues.apache.org/jira/browse/HDFS-12935) | Get ambiguous result for DFSAdmin command in HA mode when only one namenode is up | Major | tools | Jianfei Jiang | Jianfei Jiang |
+| [HDFS-13120](https://issues.apache.org/jira/browse/HDFS-13120) | Snapshot diff could be corrupted after concat | Major | namenode, snapshots | Xiaoyu Yao | Xiaoyu Yao |
+| [HDFS-10453](https://issues.apache.org/jira/browse/HDFS-10453) | ReplicationMonitor thread could stuck for long time due to the race between replication and delete of same file in a large cluster. | Major | namenode | He Xiaoqiao | He Xiaoqiao |
+| [HDFS-8693](https://issues.apache.org/jira/browse/HDFS-8693) | refreshNamenodes does not support adding a new standby to a running DN | Critical | datanode, ha | Jian Fang | Ajith S |
+| [MAPREDUCE-7052](https://issues.apache.org/jira/browse/MAPREDUCE-7052) | TestFixedLengthInputFormat#testFormatCompressedIn is flaky | Major | client, test | Peter Bacsko | Peter Bacsko |
+| [HDFS-13112](https://issues.apache.org/jira/browse/HDFS-13112) | Token expiration edits may cause log corruption or deadlock | Critical | namenode | Daryn Sharp | Daryn Sharp |
+| [MAPREDUCE-7053](https://issues.apache.org/jira/browse/MAPREDUCE-7053) | Timed out tasks can fail to produce thread dump | Major | . | Jason Lowe | Jason Lowe |
+| [HADOOP-15206](https://issues.apache.org/jira/browse/HADOOP-15206) | BZip2 drops and duplicates records when input split size is small | Major | . | Aki Tanaka | Aki Tanaka |
+| [YARN-7937](https://issues.apache.org/jira/browse/YARN-7937) | Fix http method name in Cluster Application Timeout Update API example request | Minor | docs, documentation | Charan Hebri | Charan Hebri |
+| [YARN-7947](https://issues.apache.org/jira/browse/YARN-7947) | Capacity Scheduler intra-queue preemption can NPE for non-schedulable apps | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne |
+| [YARN-7945](https://issues.apache.org/jira/browse/YARN-7945) | Java Doc error in UnmanagedAMPoolManager for branch-2 | Major | . | Rohith Sharma K S | Botong Huang |
+| [HADOOP-14903](https://issues.apache.org/jira/browse/HADOOP-14903) | Add json-smart explicitly to pom.xml | Major | common | Ray Chiang | Ray Chiang |
+| [HADOOP-15236](https://issues.apache.org/jira/browse/HADOOP-15236) | Fix typo in RequestHedgingProxyProvider and RequestHedgingRMFailoverProxyProvider | Trivial | documentation | Akira Ajisaka | Gabor Bota |
+| [MAPREDUCE-7027](https://issues.apache.org/jira/browse/MAPREDUCE-7027) | HadoopArchiveLogs shouldn't delete the original logs if the HAR creation fails | Critical | mrv2 | Gergely Novák | Gergely Novák |
+| [HDFS-12781](https://issues.apache.org/jira/browse/HDFS-12781) | After Datanode down, In Namenode UI Datanode tab is throwing warning message. | Major | datanode | Harshakiran Reddy | Brahma Reddy Battula |
+| [HDFS-12070](https://issues.apache.org/jira/browse/HDFS-12070) | Failed block recovery leaves files open indefinitely and at risk for data loss | Major | . | Daryn Sharp | Kihwal Lee |
+| [HADOOP-15251](https://issues.apache.org/jira/browse/HADOOP-15251) | Backport HADOOP-13514 (surefire upgrade) to branch-2 | Major | test | Chris Douglas | Chris Douglas |
+| [HDFS-13194](https://issues.apache.org/jira/browse/HDFS-13194) | CachePool permissions incorrectly checked | Major | . | Yiqun Lin | Jianfei Jiang |
+| [HADOOP-15276](https://issues.apache.org/jira/browse/HADOOP-15276) | branch-2 site not building after ADL troubleshooting doc added | Major | documentation | Steve Loughran | Steve Loughran |
+| [YARN-7835](https://issues.apache.org/jira/browse/YARN-7835) | [Atsv2] Race condition in NM while publishing events if second attempt is launched on the same node | Critical | . | Rohith Sharma K S | Rohith Sharma K S |
+| [HADOOP-15275](https://issues.apache.org/jira/browse/HADOOP-15275) | Incorrect javadoc for return type of RetryPolicy#shouldRetry | Minor | documentation | Nanda kumar | Nanda kumar |
+| [YARN-7511](https://issues.apache.org/jira/browse/YARN-7511) | NPE in ContainerLocalizer when localization failed for running container | Major | nodemanager | Tao Yang | Tao Yang |
+| [MAPREDUCE-7023](https://issues.apache.org/jira/browse/MAPREDUCE-7023) | TestHadoopArchiveLogs.testCheckFilesAndSeedApps fails on rerun | Minor | test | Gergely Novák | Gergely Novák |
+| [HADOOP-15283](https://issues.apache.org/jira/browse/HADOOP-15283) | Upgrade from findbugs 3.0.1 to spotbugs 3.1.2 in branch-2 to fix docker image build | Major | . | Xiao Chen | Akira Ajisaka |
+| [HADOOP-15286](https://issues.apache.org/jira/browse/HADOOP-15286) | Remove unused imports from TestKMSWithZK.java | Minor | test | Akira Ajisaka | Ajay Kumar |
+| [HDFS-13040](https://issues.apache.org/jira/browse/HDFS-13040) | Kerberized inotify client fails despite kinit properly | Major | namenode | Wei-Chiu Chuang | Xiao Chen |
+| [YARN-7736](https://issues.apache.org/jira/browse/YARN-7736) | Fix itemization in YARN federation document | Minor | documentation | Akira Ajisaka | Sen Zhao |
+| [HDFS-13164](https://issues.apache.org/jira/browse/HDFS-13164) | File not closed if streamer fail with DSQuotaExceededException | Major | hdfs-client | Xiao Chen | Xiao Chen |
+| [HDFS-13109](https://issues.apache.org/jira/browse/HDFS-13109) | Support fully qualified hdfs path in EZ commands | Major | hdfs | Hanisha Koneru | Hanisha Koneru |
+| [MAPREDUCE-6930](https://issues.apache.org/jira/browse/MAPREDUCE-6930) | mapreduce.map.cpu.vcores and mapreduce.reduce.cpu.vcores are both present twice in mapred-default.xml | Major | mrv2 | Daniel Templeton | Sen Zhao |
+| [HDFS-10618](https://issues.apache.org/jira/browse/HDFS-10618) | TestPendingReconstruction#testPendingAndInvalidate is flaky due to race condition | Major | . | Eric Badger | Eric Badger |
+| [HDFS-10803](https://issues.apache.org/jira/browse/HDFS-10803) | TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails intermittently due to no free space available | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-12156](https://issues.apache.org/jira/browse/HDFS-12156) | TestFSImage fails without -Pnative | Major | test | Akira Ajisaka | Akira Ajisaka |
+| [HDFS-13261](https://issues.apache.org/jira/browse/HDFS-13261) | Fix incorrect null value check | Minor | hdfs | Jianfei Jiang | Jianfei Jiang |
+| [HDFS-12886](https://issues.apache.org/jira/browse/HDFS-12886) | Ignore minReplication for block recovery | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak |
+| [YARN-8039](https://issues.apache.org/jira/browse/YARN-8039) | Clean up log dir configuration in TestLinuxContainerExecutorWithMocks.testStartLocalizer | Minor | . | Miklos Szegedi | Miklos Szegedi |
+| [HDFS-13296](https://issues.apache.org/jira/browse/HDFS-13296) | GenericTestUtils generates paths with drive letter in Windows and fail webhdfs related test cases | Major | . | Xiao Liang | Xiao Liang |
+| [HDFS-13268](https://issues.apache.org/jira/browse/HDFS-13268) | TestWebHdfsFileContextMainOperations fails on Windows | Major | . | Íñigo Goiri | Xiao Liang |
+| [YARN-8054](https://issues.apache.org/jira/browse/YARN-8054) | Improve robustness of the LocalDirsHandlerService MonitoringTimerTask thread | Major | . | Jonathan Eagles | Jonathan Eagles |
+| [YARN-7873](https://issues.apache.org/jira/browse/YARN-7873) | Revert YARN-6078 | Blocker | . | Billie Rinaldi | Billie Rinaldi |
+| [HDFS-13195](https://issues.apache.org/jira/browse/HDFS-13195) | DataNode conf page cannot display the current value after reconfig | Minor | datanode | maobaolong | maobaolong |
+| [YARN-8063](https://issues.apache.org/jira/browse/YARN-8063) | DistributedShellTimelinePlugin wrongly check for entityId instead of entityType | Major | . | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-8068](https://issues.apache.org/jira/browse/YARN-8068) | Application Priority field causes NPE in app timeline publish when Hadoop 2.7 based clients to 2.8+ | Blocker | yarn | Sunil Govindan | Sunil Govindan |
+| [HADOOP-12862](https://issues.apache.org/jira/browse/HADOOP-12862) | LDAP Group Mapping over SSL can not specify trust store | Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [HADOOP-15317](https://issues.apache.org/jira/browse/HADOOP-15317) | Improve NetworkTopology chooseRandom's loop | Major | . | Xiao Chen | Xiao Chen |
+| [HADOOP-15355](https://issues.apache.org/jira/browse/HADOOP-15355) | TestCommonConfigurationFields is broken by HADOOP-15312 | Major | test | Konstantin Shvachko | LiXin Ge |
+| [HDFS-13176](https://issues.apache.org/jira/browse/HDFS-13176) | WebHdfs file path gets truncated when having semicolon (;) inside | Major | webhdfs | Zsolt Venczel | Zsolt Venczel |
+| [HADOOP-15375](https://issues.apache.org/jira/browse/HADOOP-15375) | Branch-2 pre-commit failed to build docker image | Major | . | Xiao Chen | Xiao Chen |
+| [HADOOP-15357](https://issues.apache.org/jira/browse/HADOOP-15357) | Configuration.getPropsWithPrefix no longer does variable substitution | Major | . | Jim Brennan | Jim Brennan |
+| [MAPREDUCE-7062](https://issues.apache.org/jira/browse/MAPREDUCE-7062) | Update mapreduce.job.tags description for making use for ATSv2 purpose. | Major | . | Charan Hebri | Charan Hebri |
+| [YARN-8073](https://issues.apache.org/jira/browse/YARN-8073) | TimelineClientImpl doesn't honor yarn.timeline-service.versions configuration | Major | . | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-6629](https://issues.apache.org/jira/browse/YARN-6629) | NPE occurred when container allocation proposal is applied but its resource requests are removed before | Critical | . | Tao Yang | Tao Yang |
+| [HDFS-13427](https://issues.apache.org/jira/browse/HDFS-13427) | Fix the section titles of transparent encryption document | Minor | documentation | Akira Ajisaka | Akira Ajisaka |
+| [YARN-7527](https://issues.apache.org/jira/browse/YARN-7527) | Over-allocate node resource in async-scheduling mode of CapacityScheduler | Major | capacityscheduler | Tao Yang | Tao Yang |
+| [HDFS-7101](https://issues.apache.org/jira/browse/HDFS-7101) | Potential null dereference in DFSck#doWork() | Minor | . | Ted Yu | skrho |
+| [YARN-8120](https://issues.apache.org/jira/browse/YARN-8120) | JVM can crash with SIGSEGV when exiting due to custom leveldb logger | Major | nodemanager, resourcemanager | Jason Lowe | Jason Lowe |
+| [YARN-8147](https://issues.apache.org/jira/browse/YARN-8147) | TestClientRMService#testGetApplications sporadically fails | Major | test | Jason Lowe | Jason Lowe |
+| [HADOOP-14970](https://issues.apache.org/jira/browse/HADOOP-14970) | MiniHadoopClusterManager doesn't respect lack of format option | Minor | . | Erik Krogen | Erik Krogen |
+| [YARN-8156](https://issues.apache.org/jira/browse/YARN-8156) | Increase the default value of yarn.timeline-service.app-collector.linger-period.ms | Major | . | Rohith Sharma K S | Charan Hebri |
+| [YARN-8165](https://issues.apache.org/jira/browse/YARN-8165) | Incorrect queue name logging in AbstractContainerAllocator | Trivial | capacityscheduler | Weiwei Yang | Weiwei Yang |
+| [YARN-8164](https://issues.apache.org/jira/browse/YARN-8164) | Fix a potential NPE in AbstractSchedulerPlanFollower | Major | . | lujie | lujie |
+| [HDFS-12828](https://issues.apache.org/jira/browse/HDFS-12828) | OIV ReverseXML Processor fails with escaped characters | Critical | hdfs | Erik Krogen | Erik Krogen |
+| [HADOOP-15180](https://issues.apache.org/jira/browse/HADOOP-15180) | branch-2 : daemon processes' sysout overwrites 'ulimit -a' in daemon's out file | Minor | scripts | Ranith Sardar | Ranith Sardar |
+| [HADOOP-15396](https://issues.apache.org/jira/browse/HADOOP-15396) | Some java source files are executable | Minor | . | Akira Ajisaka | Shashikant Banerjee |
+| [YARN-6827](https://issues.apache.org/jira/browse/YARN-6827) | [ATS1/1.5] NPE exception while publishing recovering applications into ATS during RM restart. | Major | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-7786](https://issues.apache.org/jira/browse/YARN-7786) | NullPointerException while launching ApplicationMaster | Major | . | lujie | lujie |
+| [HDFS-13408](https://issues.apache.org/jira/browse/HDFS-13408) | MiniDFSCluster to support being built on randomized base directory | Major | test | Xiao Liang | Xiao Liang |
+| [HADOOP-15390](https://issues.apache.org/jira/browse/HADOOP-15390) | Yarn RM logs flooded by DelegationTokenRenewer trying to renew KMS tokens | Critical | . | Xiao Chen | Xiao Chen |
+| [HDFS-13336](https://issues.apache.org/jira/browse/HDFS-13336) | Test cases of TestWriteToReplica failed in windows | Major | . | Xiao Liang | Xiao Liang |
+| [YARN-7598](https://issues.apache.org/jira/browse/YARN-7598) | Document how to use classpath isolation for aux-services in YARN | Major | . | Xuan Gong | Xuan Gong |
+| [HADOOP-15385](https://issues.apache.org/jira/browse/HADOOP-15385) | Many tests are failing in hadoop-distcp project in branch-2 | Critical | tools/distcp | Rushabh S Shah | Jason Lowe |
+| [MAPREDUCE-7042](https://issues.apache.org/jira/browse/MAPREDUCE-7042) | Killed MR job data does not move to mapreduce.jobhistory.done-dir when ATS v2 is enabled | Major | . | Yesha Vora | Xuan Gong |
+| [YARN-8205](https://issues.apache.org/jira/browse/YARN-8205) | Application State is not updated to ATS if AM launching is delayed. | Critical | . | Sumana Sathish | Rohith Sharma K S |
+| [MAPREDUCE-7072](https://issues.apache.org/jira/browse/MAPREDUCE-7072) | mapred job -history prints duplicate counter in human output | Major | client | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
+| [YARN-8221](https://issues.apache.org/jira/browse/YARN-8221) | RMWebServices also need to honor yarn.resourcemanager.display.per-user-apps | Major | webapp | Sunil Govindan | Sunil Govindan |
+| [HDFS-13509](https://issues.apache.org/jira/browse/HDFS-13509) | Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows | Major | . | Xiao Liang | Xiao Liang |
+| [MAPREDUCE-7073](https://issues.apache.org/jira/browse/MAPREDUCE-7073) | Optimize TokenCache#obtainTokensForNamenodesInternal | Major | . | Bibin A Chundatt | Bibin A Chundatt |
+| [YARN-8232](https://issues.apache.org/jira/browse/YARN-8232) | RMContainer lost queue name when RM HA happens | Major | resourcemanager | Hu Ziqian | Hu Ziqian |
+| [HDFS-13537](https://issues.apache.org/jira/browse/HDFS-13537) | TestHdfsHelper does not generate jceks path properly for relative path in Windows | Major | . | Xiao Liang | Xiao Liang |
+| [HADOOP-15446](https://issues.apache.org/jira/browse/HADOOP-15446) | WASB: PageBlobInputStream.skip breaks HBASE replication | Major | fs/azure | Thomas Marquardt | Thomas Marquardt |
+| [YARN-8244](https://issues.apache.org/jira/browse/YARN-8244) | TestContainerSchedulerQueuing.testStartMultipleContainers failed | Major | . | Miklos Szegedi | Jim Brennan |
+| [HDFS-13586](https://issues.apache.org/jira/browse/HDFS-13586) | Fsync fails on directories on Windows | Critical | datanode, hdfs | Lukas Majercak | Lukas Majercak |
+| [HDFS-13590](https://issues.apache.org/jira/browse/HDFS-13590) | Backport HDFS-12378 to branch-2 | Major | datanode, hdfs, test | Lukas Majercak | Lukas Majercak |
+| [HADOOP-15478](https://issues.apache.org/jira/browse/HADOOP-15478) | WASB: hflush() and hsync() regression | Major | fs/azure | Thomas Marquardt | Thomas Marquardt |
+| [HADOOP-15450](https://issues.apache.org/jira/browse/HADOOP-15450) | Avoid fsync storm triggered by DiskChecker and handle disk full situation | Blocker | . | Kihwal Lee | Arpit Agarwal |
+| [HDFS-13601](https://issues.apache.org/jira/browse/HDFS-13601) | Optimize ByteString conversions in PBHelper | Major | . | Andrew Wang | Andrew Wang |
+| [HDFS-13588](https://issues.apache.org/jira/browse/HDFS-13588) | Fix TestFsDatasetImpl test failures on Windows | Major | . | Xiao Liang | Xiao Liang |
+| [YARN-8310](https://issues.apache.org/jira/browse/YARN-8310) | Handle old NMTokenIdentifier, AMRMTokenIdentifier, and ContainerTokenIdentifier formats | Major | . | Robert Kanter | Robert Kanter |
+| [YARN-8344](https://issues.apache.org/jira/browse/YARN-8344) | Missing nm.stop() in TestNodeManagerResync to fix testKillContainersOnResync | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [YARN-8327](https://issues.apache.org/jira/browse/YARN-8327) | Fix TestAggregatedLogFormat#testReadAcontainerLogs1 on Windows | Major | log-aggregation | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [YARN-8346](https://issues.apache.org/jira/browse/YARN-8346) | Upgrading to 3.1 kills running containers with error "Opportunistic container queue is full" | Blocker | . | Rohith Sharma K S | Jason Lowe |
+| [HDFS-13611](https://issues.apache.org/jira/browse/HDFS-13611) | Unsafe use of Text as a ConcurrentHashMap key in PBHelperClient | Major | . | Andrew Wang | Andrew Wang |
+| [HDFS-13618](https://issues.apache.org/jira/browse/HDFS-13618) | Fix TestDataNodeFaultInjector test failures on Windows | Major | test | Xiao Liang | Xiao Liang |
+| [HADOOP-15473](https://issues.apache.org/jira/browse/HADOOP-15473) | Configure serialFilter in KeyProvider to avoid UnrecoverableKeyException caused by JDK-8189997 | Critical | kms | Gabor Bota | Gabor Bota |
+| [HDFS-13626](https://issues.apache.org/jira/browse/HDFS-13626) | Fix incorrect username when deny the setOwner operation | Minor | namenode | luhuachao | Zsolt Venczel |
+| [MAPREDUCE-7103](https://issues.apache.org/jira/browse/MAPREDUCE-7103) | Fix TestHistoryViewerPrinter on windows due to a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [YARN-8359](https://issues.apache.org/jira/browse/YARN-8359) | Exclude containermanager.linux test classes on Windows | Major | . | Giovanni Matteo Fumarola | Jason Lowe |
+| [HDFS-13664](https://issues.apache.org/jira/browse/HDFS-13664) | Refactor ConfiguredFailoverProxyProvider to make inheritance easier | Minor | hdfs-client | Chao Sun | Chao Sun |
+| [YARN-8405](https://issues.apache.org/jira/browse/YARN-8405) | RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773 | Major | . | Rohith Sharma K S | Íñigo Goiri |
+| [MAPREDUCE-7108](https://issues.apache.org/jira/browse/MAPREDUCE-7108) | TestFileOutputCommitter fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
+| [MAPREDUCE-7101](https://issues.apache.org/jira/browse/MAPREDUCE-7101) | Add config parameter to allow JHS to alway scan user dir irrespective of modTime | Critical | . | Wangda Tan | Thomas Marquardt |
+| [YARN-8404](https://issues.apache.org/jira/browse/YARN-8404) | Timeline event publish need to be async to avoid Dispatcher thread leak in case ATS is down | Blocker | . | Rohith Sharma K S | Rohith Sharma K S |
+| [HDFS-13675](https://issues.apache.org/jira/browse/HDFS-13675) | Speed up TestDFSAdminWithHA | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak |
+| [HDFS-13673](https://issues.apache.org/jira/browse/HDFS-13673) | TestNameNodeMetrics fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
+| [HDFS-13676](https://issues.apache.org/jira/browse/HDFS-13676) | TestEditLogRace fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
+| [HADOOP-15523](https://issues.apache.org/jira/browse/HADOOP-15523) | Shell command timeout given is in seconds whereas it is taken as millisec while scheduling | Major | . | Bilwa S T | Bilwa S T |
+| [YARN-8444](https://issues.apache.org/jira/browse/YARN-8444) | NodeResourceMonitor crashes on bad swapFree value | Major | . | Jim Brennan | Jim Brennan |
+| [YARN-8457](https://issues.apache.org/jira/browse/YARN-8457) | Compilation is broken with -Pyarn-ui | Major | webapp | Sunil Govindan | Sunil Govindan |
+| [YARN-8401](https://issues.apache.org/jira/browse/YARN-8401) | [UI2] new ui is not accessible with out internet connection | Blocker | . | Bibin A Chundatt | Bibin A Chundatt |
+| [YARN-8451](https://issues.apache.org/jira/browse/YARN-8451) | Multiple NM heartbeat thread created when a slow NM resync with RM | Major | nodemanager | Botong Huang | Botong Huang |
+| [HADOOP-15548](https://issues.apache.org/jira/browse/HADOOP-15548) | Randomize local dirs | Minor | . | Jim Brennan | Jim Brennan |
+| [YARN-8473](https://issues.apache.org/jira/browse/YARN-8473) | Containers being launched as app tears down can leave containers in NEW state | Major | nodemanager | Jason Lowe | Jason Lowe |
+| [HDFS-13729](https://issues.apache.org/jira/browse/HDFS-13729) | Fix broken links to RBF documentation | Minor | documentation | jwhitter | Gabor Bota |
+| [YARN-8515](https://issues.apache.org/jira/browse/YARN-8515) | container-executor can crash with SIGPIPE after nodemanager restart | Major | . | Jim Brennan | Jim Brennan |
+| [YARN-8421](https://issues.apache.org/jira/browse/YARN-8421) | when moving app, activeUsers is increased, even though app does not have outstanding request | Major | . | kyungwan nam | |
+| [HADOOP-15614](https://issues.apache.org/jira/browse/HADOOP-15614) | TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails | Major | . | Kihwal Lee | Weiwei Yang |
+| [YARN-4606](https://issues.apache.org/jira/browse/YARN-4606) | CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps | Critical | capacity scheduler, capacityscheduler | Karam Singh | Manikandan R |
+| [HADOOP-15637](https://issues.apache.org/jira/browse/HADOOP-15637) | LocalFs#listLocatedStatus does not filter out hidden .crc files | Minor | fs | Erik Krogen | Erik Krogen |
+| [HADOOP-15644](https://issues.apache.org/jira/browse/HADOOP-15644) | Hadoop Docker Image Pip Install Fails on branch-2 | Critical | build | Haibo Chen | Haibo Chen |
+| [YARN-6966](https://issues.apache.org/jira/browse/YARN-6966) | NodeManager metrics may return wrong negative values when NM restart | Major | . | Yang Wang | Szilard Nemeth |
+| [YARN-8331](https://issues.apache.org/jira/browse/YARN-8331) | Race condition in NM container launched after done | Major | . | Yang Wang | Pradeep Ambati |
+| [HDFS-13758](https://issues.apache.org/jira/browse/HDFS-13758) | DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction | Major | namenode | Wei-Chiu Chuang | chencan |
+| [YARN-8612](https://issues.apache.org/jira/browse/YARN-8612) | Fix NM Collector Service Port issue in YarnConfiguration | Major | ATSv2 | Prabha Manepalli | Prabha Manepalli |
+| [HADOOP-15674](https://issues.apache.org/jira/browse/HADOOP-15674) | Test failure TestSSLHttpServer.testExcludedCiphers with TLS\_ECDHE\_RSA\_WITH\_AES\_128\_CBC\_SHA256 cipher suite | Major | common | Gabor Bota | Szilard Nemeth |
+| [YARN-8640](https://issues.apache.org/jira/browse/YARN-8640) | Restore previous state in container-executor after failure | Major | . | Jim Brennan | Jim Brennan |
+| [YARN-8679](https://issues.apache.org/jira/browse/YARN-8679) | [ATSv2] If HBase cluster is down for long time, high chances that NM ContainerManager dispatcher get blocked | Major | . | Rohith Sharma K S | Wangda Tan |
+| [HADOOP-14314](https://issues.apache.org/jira/browse/HADOOP-14314) | The OpenSolaris taxonomy link is dead in InterfaceClassification.md | Major | documentation | Daniel Templeton | Rui Gao |
+| [YARN-8649](https://issues.apache.org/jira/browse/YARN-8649) | NPE in localizer hearbeat processing if a container is killed while localizing | Major | . | lujie | lujie |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-13337](https://issues.apache.org/jira/browse/HDFS-13337) | Backport HDFS-4275 to branch-2.9 | Minor | . | Íñigo Goiri | Xiao Liang |
+| [HDFS-13503](https://issues.apache.org/jira/browse/HDFS-13503) | Fix TestFsck test failures on Windows | Major | hdfs | Xiao Liang | Xiao Liang |
+| [HDFS-13542](https://issues.apache.org/jira/browse/HDFS-13542) | TestBlockManager#testNeededReplicationWhileAppending fails due to improper cluster shutdown in TestBlockManager#testBlockManagerMachinesArray on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13551](https://issues.apache.org/jira/browse/HDFS-13551) | TestMiniDFSCluster#testClusterSetStorageCapacity does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-11700](https://issues.apache.org/jira/browse/HDFS-11700) | TestHDFSServerPorts#testBackupNodePorts doesn't pass on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13548](https://issues.apache.org/jira/browse/HDFS-13548) | TestResolveHdfsSymlink#testFcResolveAfs fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13567](https://issues.apache.org/jira/browse/HDFS-13567) | TestNameNodeMetrics#testGenerateEDEKTime,TestNameNodeMetrics#testResourceCheck should use a different cluster basedir | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13557](https://issues.apache.org/jira/browse/HDFS-13557) | TestDFSAdmin#testListOpenFiles fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13550](https://issues.apache.org/jira/browse/HDFS-13550) | TestDebugAdmin#testComputeMetaCommand fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13559](https://issues.apache.org/jira/browse/HDFS-13559) | TestBlockScanner does not close TestContext properly | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13570](https://issues.apache.org/jira/browse/HDFS-13570) | TestQuotaByStorageType,TestQuota,TestDFSOutputStream fail on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13558](https://issues.apache.org/jira/browse/HDFS-13558) | TestDatanodeHttpXFrame does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13554](https://issues.apache.org/jira/browse/HDFS-13554) | TestDatanodeRegistration#testForcedRegistration does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13556](https://issues.apache.org/jira/browse/HDFS-13556) | TestNestedEncryptionZones does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13560](https://issues.apache.org/jira/browse/HDFS-13560) | Insufficient system resources exist to complete the requested service for some tests on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13592](https://issues.apache.org/jira/browse/HDFS-13592) | TestNameNodePrunesMissingStorages#testNameNodePrunesUnreportedStorages does not shut down cluster properly | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13593](https://issues.apache.org/jira/browse/HDFS-13593) | TestBlockReaderLocalLegacy#testBlockReaderLocalLegacyWithAppend fails on Windows | Minor | test | Anbang Hu | Anbang Hu |
+| [HDFS-13587](https://issues.apache.org/jira/browse/HDFS-13587) | TestQuorumJournalManager fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13620](https://issues.apache.org/jira/browse/HDFS-13620) | Randomize the test directory path for TestHDFSFileSystemContract | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13591](https://issues.apache.org/jira/browse/HDFS-13591) | TestDFSShell#testSetrepLow fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13632](https://issues.apache.org/jira/browse/HDFS-13632) | Randomize baseDir for MiniJournalCluster in MiniQJMHACluster for TestDFSAdminWithHA | Minor | . | Anbang Hu | Anbang Hu |
+| [MAPREDUCE-7102](https://issues.apache.org/jira/browse/MAPREDUCE-7102) | Fix TestJavaSerialization for Windows due a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [HDFS-13652](https://issues.apache.org/jira/browse/HDFS-13652) | Randomize baseDir for MiniDFSCluster in TestBlockScanner | Minor | . | Anbang Hu | Anbang Hu |
+| [YARN-8370](https://issues.apache.org/jira/browse/YARN-8370) | Some Node Manager tests fail on Windows due to improper path/file separator | Minor | . | Anbang Hu | Anbang Hu |
+| [YARN-8422](https://issues.apache.org/jira/browse/YARN-8422) | TestAMSimulator failing with NPE | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [HADOOP-15532](https://issues.apache.org/jira/browse/HADOOP-15532) | TestBasicDiskValidator fails with NoSuchFileException | Minor | . | Íñigo Goiri | Giovanni Matteo Fumarola |
+| [HDFS-13563](https://issues.apache.org/jira/browse/HDFS-13563) | TestDFSAdminWithHA times out on Windows | Minor | . | Anbang Hu | Lukas Majercak |
+| [HDFS-13681](https://issues.apache.org/jira/browse/HDFS-13681) | Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows | Major | test | Xiao Liang | Xiao Liang |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-14799](https://issues.apache.org/jira/browse/HADOOP-14799) | Update nimbus-jose-jwt to 4.41.1 | Major | . | Ray Chiang | Ray Chiang |
+| [HADOOP-14997](https://issues.apache.org/jira/browse/HADOOP-14997) | Add hadoop-aliyun as dependency of hadoop-cloud-storage | Minor | fs/oss | Genmao Yu | Genmao Yu |
+| [HDFS-12801](https://issues.apache.org/jira/browse/HDFS-12801) | RBF: Set MountTableResolver as default file resolver | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-7430](https://issues.apache.org/jira/browse/YARN-7430) | Enable user re-mapping for Docker containers by default | Blocker | security, yarn | Eric Yang | Eric Yang |
+| [HADOOP-15024](https://issues.apache.org/jira/browse/HADOOP-15024) | AliyunOSS: support user agent configuration and include that & Hadoop version information to oss server | Major | fs, fs/oss | Sammi Chen | Sammi Chen |
+| [HDFS-12858](https://issues.apache.org/jira/browse/HDFS-12858) | RBF: Add router admin commands usage in HDFS commands reference doc | Minor | documentation | Yiqun Lin | Yiqun Lin |
+| [HDFS-12835](https://issues.apache.org/jira/browse/HDFS-12835) | RBF: Fix Javadoc parameter errors | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-12396](https://issues.apache.org/jira/browse/HDFS-12396) | Webhdfs file system should get delegation token from kms provider. | Major | encryption, kms, webhdfs | Rushabh S Shah | Rushabh S Shah |
+| [YARN-6704](https://issues.apache.org/jira/browse/YARN-6704) | Add support for work preserving NM restart when FederationInterceptor is enabled in AMRMProxyService | Major | . | Botong Huang | Botong Huang |
+| [HDFS-12875](https://issues.apache.org/jira/browse/HDFS-12875) | RBF: Complete logic for -readonly option of dfsrouteradmin add command | Major | . | Yiqun Lin | Íñigo Goiri |
+| [YARN-7630](https://issues.apache.org/jira/browse/YARN-7630) | Fix AMRMToken rollover handling in AMRMProxy | Minor | . | Botong Huang | Botong Huang |
+| [HDFS-12937](https://issues.apache.org/jira/browse/HDFS-12937) | RBF: Add more unit tests for router admin commands | Major | test | Yiqun Lin | Yiqun Lin |
+| [YARN-7032](https://issues.apache.org/jira/browse/YARN-7032) | [ATSv2] NPE while starting hbase co-processor when HBase authorization is enabled. | Critical | . | Rohith Sharma K S | Rohith Sharma K S |
+| [HDFS-12988](https://issues.apache.org/jira/browse/HDFS-12988) | RBF: Mount table entries not properly updated in the local cache | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-12802](https://issues.apache.org/jira/browse/HDFS-12802) | RBF: Control MountTableResolver cache size | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-12934](https://issues.apache.org/jira/browse/HDFS-12934) | RBF: Federation supports global quota | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-12972](https://issues.apache.org/jira/browse/HDFS-12972) | RBF: Display mount table quota info in Web UI and admin command | Major | . | Yiqun Lin | Yiqun Lin |
+| [YARN-6736](https://issues.apache.org/jira/browse/YARN-6736) | Consider writing to both ats v1 & v2 from RM for smoother upgrades | Major | timelineserver | Vrushali C | Aaron Gresch |
+| [HADOOP-15027](https://issues.apache.org/jira/browse/HADOOP-15027) | AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance | Major | fs/oss | wujinhu | wujinhu |
+| [HDFS-12973](https://issues.apache.org/jira/browse/HDFS-12973) | RBF: Document global quota supporting in federation | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-13028](https://issues.apache.org/jira/browse/HDFS-13028) | RBF: Fix spurious TestRouterRpc#testProxyGetStats | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-12772](https://issues.apache.org/jira/browse/HDFS-12772) | RBF: Federation Router State State Store internal API | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13042](https://issues.apache.org/jira/browse/HDFS-13042) | RBF: Heartbeat Router State | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13049](https://issues.apache.org/jira/browse/HDFS-13049) | RBF: Inconsistent Router OPTS config in branch-2 and branch-3 | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-12574](https://issues.apache.org/jira/browse/HDFS-12574) | Add CryptoInputStream to WebHdfsFileSystem read call. | Major | encryption, kms, webhdfs | Rushabh S Shah | Rushabh S Shah |
+| [HDFS-13044](https://issues.apache.org/jira/browse/HDFS-13044) | RBF: Add a safe mode for the Router | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13043](https://issues.apache.org/jira/browse/HDFS-13043) | RBF: Expose the state of the Routers in the federation | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13068](https://issues.apache.org/jira/browse/HDFS-13068) | RBF: Add router admin option to manage safe mode | Major | . | Íñigo Goiri | Yiqun Lin |
+| [HDFS-13119](https://issues.apache.org/jira/browse/HDFS-13119) | RBF: Manage unavailable clusters | Major | . | Íñigo Goiri | Yiqun Lin |
+| [HDFS-13187](https://issues.apache.org/jira/browse/HDFS-13187) | RBF: Fix Routers information shown in the web UI | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-13184](https://issues.apache.org/jira/browse/HDFS-13184) | RBF: Improve the unit test TestRouterRPCClientRetries | Minor | test | Yiqun Lin | Yiqun Lin |
+| [HDFS-13199](https://issues.apache.org/jira/browse/HDFS-13199) | RBF: Fix the hdfs router page missing label icon issue | Major | federation, hdfs | maobaolong | maobaolong |
+| [HADOOP-15090](https://issues.apache.org/jira/browse/HADOOP-15090) | Add ADL troubleshooting doc | Major | documentation, fs/adl | Steve Loughran | Steve Loughran |
+| [YARN-7919](https://issues.apache.org/jira/browse/YARN-7919) | Refactor timelineservice-hbase module into submodules | Major | timelineservice | Haibo Chen | Haibo Chen |
+| [YARN-8003](https://issues.apache.org/jira/browse/YARN-8003) | Backport the code structure changes in YARN-7346 to branch-2 | Major | . | Haibo Chen | Haibo Chen |
+| [HDFS-13214](https://issues.apache.org/jira/browse/HDFS-13214) | RBF: Complete document of Router configuration | Major | . | Tao Jie | Yiqun Lin |
+| [HADOOP-15267](https://issues.apache.org/jira/browse/HADOOP-15267) | S3A multipart upload fails when SSE-C encryption is enabled | Critical | fs/s3 | Anis Elleuch | Anis Elleuch |
+| [HDFS-13230](https://issues.apache.org/jira/browse/HDFS-13230) | RBF: ConnectionManager's cleanup task will compare each pool's own active conns with its total conns | Minor | . | Wei Yan | Chao Sun |
+| [HDFS-13233](https://issues.apache.org/jira/browse/HDFS-13233) | RBF: MountTableResolver doesn't return the correct mount point of the given path | Major | hdfs | wangzhiyuan | wangzhiyuan |
+| [HDFS-13212](https://issues.apache.org/jira/browse/HDFS-13212) | RBF: Fix router location cache issue | Major | federation, hdfs | Weiwei Wu | Weiwei Wu |
+| [HDFS-13232](https://issues.apache.org/jira/browse/HDFS-13232) | RBF: ConnectionPool should return first usable connection | Minor | . | Wei Yan | Ekanth Sethuramalingam |
+| [HDFS-13240](https://issues.apache.org/jira/browse/HDFS-13240) | RBF: Update some inaccurate document descriptions | Minor | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-11399](https://issues.apache.org/jira/browse/HDFS-11399) | Many tests fails in Windows due to injecting disk failures | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-13241](https://issues.apache.org/jira/browse/HDFS-13241) | RBF: TestRouterSafemode failed if the port 8888 is in use | Major | hdfs, test | maobaolong | maobaolong |
+| [HDFS-13253](https://issues.apache.org/jira/browse/HDFS-13253) | RBF: Quota management incorrect parent-child relationship judgement | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-13226](https://issues.apache.org/jira/browse/HDFS-13226) | RBF: Throw the exception if mount table entry validated failed | Major | hdfs | maobaolong | maobaolong |
+| [HADOOP-15308](https://issues.apache.org/jira/browse/HADOOP-15308) | TestConfiguration fails on Windows because of paths | Major | test | Íñigo Goiri | Xiao Liang |
+| [HDFS-12773](https://issues.apache.org/jira/browse/HDFS-12773) | RBF: Improve State Store FS implementation | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13198](https://issues.apache.org/jira/browse/HDFS-13198) | RBF: RouterHeartbeatService throws out CachedStateStore related exceptions when starting router | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-13224](https://issues.apache.org/jira/browse/HDFS-13224) | RBF: Resolvers to support mount points across multiple subclusters | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HADOOP-15262](https://issues.apache.org/jira/browse/HADOOP-15262) | AliyunOSS: move files under a directory in parallel when rename a directory | Major | fs/oss | wujinhu | wujinhu |
+| [HDFS-13215](https://issues.apache.org/jira/browse/HDFS-13215) | RBF: Move Router to its own module | Major | . | Íñigo Goiri | Wei Yan |
+| [HDFS-13307](https://issues.apache.org/jira/browse/HDFS-13307) | RBF: Improve the use of setQuota command | Major | . | liuhongtong | liuhongtong |
+| [HDFS-13250](https://issues.apache.org/jira/browse/HDFS-13250) | RBF: Router to manage requests across multiple subclusters | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13318](https://issues.apache.org/jira/browse/HDFS-13318) | RBF: Fix FindBugs in hadoop-hdfs-rbf | Minor | . | Íñigo Goiri | Ekanth Sethuramalingam |
+| [HDFS-12792](https://issues.apache.org/jira/browse/HDFS-12792) | RBF: Test Router-based federation using HDFSContract | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-7581](https://issues.apache.org/jira/browse/YARN-7581) | HBase filters are not constructed correctly in ATSv2 | Major | ATSv2 | Haibo Chen | Haibo Chen |
+| [YARN-7986](https://issues.apache.org/jira/browse/YARN-7986) | ATSv2 REST API queries do not return results for uppercase application tags | Critical | . | Charan Hebri | Charan Hebri |
+| [HDFS-12512](https://issues.apache.org/jira/browse/HDFS-12512) | RBF: Add WebHDFS | Major | fs | Íñigo Goiri | Wei Yan |
+| [HDFS-13291](https://issues.apache.org/jira/browse/HDFS-13291) | RBF: Implement available space based OrderResolver | Major | . | Yiqun Lin | Yiqun Lin |
+| [HDFS-13204](https://issues.apache.org/jira/browse/HDFS-13204) | RBF: Optimize name service safe mode icon | Minor | . | liuhongtong | liuhongtong |
+| [HDFS-13352](https://issues.apache.org/jira/browse/HDFS-13352) | RBF: Add xsl stylesheet for hdfs-rbf-default.xml | Major | documentation | Takanobu Asanuma | Takanobu Asanuma |
+| [YARN-8010](https://issues.apache.org/jira/browse/YARN-8010) | Add config in FederationRMFailoverProxy to not bypass facade cache when failing over | Minor | . | Botong Huang | Botong Huang |
+| [HDFS-13347](https://issues.apache.org/jira/browse/HDFS-13347) | RBF: Cache datanode reports | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13289](https://issues.apache.org/jira/browse/HDFS-13289) | RBF: TestConnectionManager#testCleanup() test case need correction | Minor | . | Dibyendu Karmakar | Dibyendu Karmakar |
+| [HDFS-13364](https://issues.apache.org/jira/browse/HDFS-13364) | RBF: Support NamenodeProtocol in the Router | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-6936](https://issues.apache.org/jira/browse/YARN-6936) | [Atsv2] Retrospect storing entities into sub application table from client perspective | Major | . | Rohith Sharma K S | Rohith Sharma K S |
+| [HDFS-13353](https://issues.apache.org/jira/browse/HDFS-13353) | RBF: TestRouterWebHDFSContractCreate failed | Major | test | Takanobu Asanuma | Takanobu Asanuma |
+| [YARN-8107](https://issues.apache.org/jira/browse/YARN-8107) | Give an informative message when incorrect format is used in ATSv2 filter attributes | Major | ATSv2 | Charan Hebri | Rohith Sharma K S |
+| [YARN-8110](https://issues.apache.org/jira/browse/YARN-8110) | AMRMProxy recover should catch for all throwable to avoid premature exit | Major | . | Botong Huang | Botong Huang |
+| [HDFS-13402](https://issues.apache.org/jira/browse/HDFS-13402) | RBF: Fix java doc for StateStoreFileSystemImpl | Minor | hdfs | Yiran Wu | Yiran Wu |
+| [HDFS-13380](https://issues.apache.org/jira/browse/HDFS-13380) | RBF: mv/rm fail after the directory exceeded the quota limit | Major | . | Weiwei Wu | Yiqun Lin |
+| [HDFS-13410](https://issues.apache.org/jira/browse/HDFS-13410) | RBF: Support federation with no subclusters | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13384](https://issues.apache.org/jira/browse/HDFS-13384) | RBF: Improve timeout RPC call mechanism | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13045](https://issues.apache.org/jira/browse/HDFS-13045) | RBF: Improve error message returned from subcluster | Minor | . | Wei Yan | Íñigo Goiri |
+| [HDFS-13428](https://issues.apache.org/jira/browse/HDFS-13428) | RBF: Remove LinkedList From StateStoreFileImpl.java | Trivial | federation | BELUGA BEHR | BELUGA BEHR |
+| [HADOOP-14999](https://issues.apache.org/jira/browse/HADOOP-14999) | AliyunOSS: provide one asynchronous multi-part based uploading mechanism | Major | fs/oss | Genmao Yu | Genmao Yu |
+| [YARN-7810](https://issues.apache.org/jira/browse/YARN-7810) | TestDockerContainerRuntime test failures due to UID lookup of a non-existent user | Major | . | Shane Kumpf | Shane Kumpf |
+| [HDFS-13435](https://issues.apache.org/jira/browse/HDFS-13435) | RBF: Improve the error loggings for printing the stack trace | Major | . | Yiqun Lin | Yiqun Lin |
+| [YARN-7189](https://issues.apache.org/jira/browse/YARN-7189) | Container-executor doesn't remove Docker containers that error out early | Major | yarn | Eric Badger | Eric Badger |
+| [HDFS-13466](https://issues.apache.org/jira/browse/HDFS-13466) | RBF: Add more router-related information to the UI | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-13453](https://issues.apache.org/jira/browse/HDFS-13453) | RBF: getMountPointDates should fetch latest subdir time/date when parent dir is not present but /parent/child dirs are present in mount table | Major | . | Dibyendu Karmakar | Dibyendu Karmakar |
+| [HDFS-13478](https://issues.apache.org/jira/browse/HDFS-13478) | RBF: Disabled Nameservice store API | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13490](https://issues.apache.org/jira/browse/HDFS-13490) | RBF: Fix setSafeMode in the Router | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13484](https://issues.apache.org/jira/browse/HDFS-13484) | RBF: Disable Nameservices from the federation | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13326](https://issues.apache.org/jira/browse/HDFS-13326) | RBF: Improve the interfaces to modify and view mount tables | Minor | . | Wei Yan | Gang Li |
+| [HDFS-13499](https://issues.apache.org/jira/browse/HDFS-13499) | RBF: Show disabled name services in the UI | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-8215](https://issues.apache.org/jira/browse/YARN-8215) | ATS v2 returns invalid YARN\_CONTAINER\_ALLOCATED\_HOST\_HTTP\_ADDRESS from NM | Critical | ATSv2 | Yesha Vora | Rohith Sharma K S |
+| [HDFS-13508](https://issues.apache.org/jira/browse/HDFS-13508) | RBF: Normalize paths (automatically) when adding, updating, removing or listing mount table entries | Minor | . | Ekanth Sethuramalingam | Ekanth Sethuramalingam |
+| [HDFS-13434](https://issues.apache.org/jira/browse/HDFS-13434) | RBF: Fix dead links in RBF document | Major | documentation | Akira Ajisaka | Chetna Chaudhari |
+| [HDFS-13488](https://issues.apache.org/jira/browse/HDFS-13488) | RBF: Reject requests when a Router is overloaded | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13525](https://issues.apache.org/jira/browse/HDFS-13525) | RBF: Add unit test TestStateStoreDisabledNameservice | Major | . | Yiqun Lin | Yiqun Lin |
+| [YARN-8253](https://issues.apache.org/jira/browse/YARN-8253) | HTTPS Ats v2 api call fails with "bad HTTP parsed" | Critical | ATSv2 | Yesha Vora | Charan Hebri |
+| [HADOOP-15454](https://issues.apache.org/jira/browse/HADOOP-15454) | TestRollingFileSystemSinkWithLocal fails on Windows | Major | test | Xiao Liang | Xiao Liang |
+| [HDFS-13346](https://issues.apache.org/jira/browse/HDFS-13346) | RBF: Fix synchronization of router quota and nameservice quota | Major | . | liuhongtong | Yiqun Lin |
+| [YARN-8247](https://issues.apache.org/jira/browse/YARN-8247) | Incorrect HTTP status code returned by ATSv2 for non-whitelisted users | Critical | ATSv2 | Charan Hebri | Rohith Sharma K S |
+| [YARN-8130](https://issues.apache.org/jira/browse/YARN-8130) | Race condition when container events are published for KILLED applications | Major | ATSv2 | Charan Hebri | Rohith Sharma K S |
+| [YARN-7900](https://issues.apache.org/jira/browse/YARN-7900) | [AMRMProxy] AMRMClientRelayer for stateful FederationInterceptor | Major | . | Botong Huang | Botong Huang |
+| [HADOOP-15498](https://issues.apache.org/jira/browse/HADOOP-15498) | TestHadoopArchiveLogs (#testGenerateScript, #testPrepareWorkingDir) fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
+| [HDFS-13637](https://issues.apache.org/jira/browse/HDFS-13637) | RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN\_VALUE | Critical | federation | CR Hota | CR Hota |
+| [YARN-4781](https://issues.apache.org/jira/browse/YARN-4781) | Support intra-queue preemption for fairness ordering policy. | Major | scheduler | Wangda Tan | Eric Payne |
+| [HADOOP-15506](https://issues.apache.org/jira/browse/HADOOP-15506) | Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks | Minor | fs/azure | Esfandiar Manii | Esfandiar Manii |
+| [HADOOP-15529](https://issues.apache.org/jira/browse/HADOOP-15529) | ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [HADOOP-15533](https://issues.apache.org/jira/browse/HADOOP-15533) | Make WASB listStatus messages consistent | Trivial | fs/azure | Esfandiar Manii | Esfandiar Manii |
+| [HADOOP-15458](https://issues.apache.org/jira/browse/HADOOP-15458) | TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows | Minor | test | Xiao Liang | Xiao Liang |
+| [HDFS-13528](https://issues.apache.org/jira/browse/HDFS-13528) | RBF: If a directory exceeds quota limit then quota usage is not refreshed for other mount entries | Major | . | Dibyendu Karmakar | Dibyendu Karmakar |
+| [HDFS-13710](https://issues.apache.org/jira/browse/HDFS-13710) | RBF: setQuota and getQuotaUsage should check the dfs.federation.router.quota.enable | Major | federation, hdfs | yanghuafeng | yanghuafeng |
+| [HDFS-13726](https://issues.apache.org/jira/browse/HDFS-13726) | RBF: Fix RBF configuration links | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma |
+| [HDFS-13475](https://issues.apache.org/jira/browse/HDFS-13475) | RBF: Admin cannot enforce Router enter SafeMode | Major | . | Wei Yan | Chao Sun |
+| [HDFS-13733](https://issues.apache.org/jira/browse/HDFS-13733) | RBF: Add Web UI configurations and descriptions to RBF document | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma |
+| [HDFS-13743](https://issues.apache.org/jira/browse/HDFS-13743) | RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver | Major | . | Takanobu Asanuma | Takanobu Asanuma |
+| [HDFS-13583](https://issues.apache.org/jira/browse/HDFS-13583) | RBF: Router admin clrQuota is not synchronized with nameservice | Major | . | Dibyendu Karmakar | Dibyendu Karmakar |
+| [HDFS-13750](https://issues.apache.org/jira/browse/HDFS-13750) | RBF: Router ID in RouterRpcClient is always null | Major | . | Takanobu Asanuma | Takanobu Asanuma |
+| [YARN-8129](https://issues.apache.org/jira/browse/YARN-8129) | Improve error message for invalid value in fields attribute | Minor | ATSv2 | Charan Hebri | Abhishek Modi |
+| [HDFS-13848](https://issues.apache.org/jira/browse/HDFS-13848) | Refactor NameNode failover proxy providers | Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko |
+| [HDFS-13634](https://issues.apache.org/jira/browse/HDFS-13634) | RBF: Configurable value in xml for async connection request queue size. | Major | federation | CR Hota | CR Hota |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-15149](https://issues.apache.org/jira/browse/HADOOP-15149) | CryptoOutputStream should implement StreamCapabilities | Major | fs | Mike Drob | Xiao Chen |
+| [HADOOP-15177](https://issues.apache.org/jira/browse/HADOOP-15177) | Update the release year to 2018 | Blocker | build | Akira Ajisaka | Bharat Viswanadham |
+| [YARN-8412](https://issues.apache.org/jira/browse/YARN-8412) | Move ResourceRequest.clone logic everywhere into a proper API | Minor | . | Botong Huang | Botong Huang |
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b8c2b1c/hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.0/RELEASENOTES.2.10.0.md
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diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.0/RELEASENOTES.2.10.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.0/RELEASENOTES.2.10.0.md
new file mode 100644
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+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.0/RELEASENOTES.2.10.0.md
@@ -0,0 +1,115 @@
+
+<!---
+# 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.
+-->
+# Apache Hadoop 2.10.0 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [HDFS-12883](https://issues.apache.org/jira/browse/HDFS-12883) | *Major* | **RBF: Document Router and State Store metrics**
+
+This JIRA makes following change:
+Change Router metrics context from 'router' to 'dfs'.
+
+
+---
+
+* [HDFS-12895](https://issues.apache.org/jira/browse/HDFS-12895) | *Major* | **RBF: Add ACL support for mount table**
+
+Mount tables support ACL, The users won't be able to modify their own entries (we are assuming these old (no-permissions before) mount table with owner:superuser, group:supergroup, permission:755 as the default permissions). The fix way is login as superuser to modify these mount table entries.
+
+
+---
+
+* [HADOOP-15027](https://issues.apache.org/jira/browse/HADOOP-15027) | *Major* | **AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance**
+
+Support multi-thread pre-read in AliyunOSSInputStream to improve the sequential read performance from Hadoop to Aliyun OSS.
+
+
+---
+
+* [MAPREDUCE-7029](https://issues.apache.org/jira/browse/MAPREDUCE-7029) | *Minor* | **FileOutputCommitter is slow on filesystems lacking recursive delete**
+
+MapReduce jobs that output to filesystems without direct support for recursive delete can set mapreduce.fileoutputcommitter.task.cleanup.enabled=true to have each task delete their intermediate work directory rather than waiting for the ApplicationMaster to clean up at the end of the job. This can significantly speed up the cleanup phase for large jobs on such filesystems.
+
+
+---
+
+* [HDFS-12528](https://issues.apache.org/jira/browse/HDFS-12528) | *Major* | **Add an option to not disable short-circuit reads on failures**
+
+Added an option to not disables short-circuit reads on failures, by setting dfs.domain.socket.disable.interval.seconds to 0.
+
+
+---
+
+* [HDFS-13083](https://issues.apache.org/jira/browse/HDFS-13083) | *Major* | **RBF: Fix doc error setting up client**
+
+Fix the document error of setting up HFDS Router Federation
+
+
+---
+
+* [HDFS-13099](https://issues.apache.org/jira/browse/HDFS-13099) | *Minor* | **RBF: Use the ZooKeeper as the default State Store**
+
+Change default State Store from local file to ZooKeeper. This will require additional zk address to be configured.
+
+
+---
+
+* [YARN-7919](https://issues.apache.org/jira/browse/YARN-7919) | *Major* | **Refactor timelineservice-hbase module into submodules**
+
+HBase integration module was mixed up with for hbase-server and hbase-client dependencies. This JIRA split into sub modules such that hbase-client dependent modules and hbase-server dependent modules are separated. This allows to make conditional compilation with different version of Hbase.
+
+
+---
+
+* [HDFS-13492](https://issues.apache.org/jira/browse/HDFS-13492) | *Major* | **Limit httpfs binds to certain IP addresses in branch-2**
+
+Use environment variable HTTPFS\_HTTP\_HOSTNAME to limit the IP addresses httpfs server binds to. Default: httpfs server binds to all IP addresses on the host.
+
+
+---
+
+* [HADOOP-15446](https://issues.apache.org/jira/browse/HADOOP-15446) | *Major* | **WASB: PageBlobInputStream.skip breaks HBASE replication**
+
+WASB: Bug fix to support non-sequential page blob reads. Required for HBASE replication.
+
+
+---
+
+* [HADOOP-15478](https://issues.apache.org/jira/browse/HADOOP-15478) | *Major* | **WASB: hflush() and hsync() regression**
+
+WASB: Bug fix for recent regression in hflush() and hsync().
+
+
+---
+
+* [HADOOP-15506](https://issues.apache.org/jira/browse/HADOOP-15506) | *Minor* | **Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks**
+
+WASB: Fix Spark process hang at shutdown due to use of non-daemon threads by updating Azure Storage Java SDK to 7.0
+
+
+---
+
+* [HDFS-13553](https://issues.apache.org/jira/browse/HDFS-13553) | *Major* | **RBF: Support global quota**
+
+Federation supports and controls global quota at mount table level.
+
+In a federated environment, a folder can be spread across multiple subclusters. Router aggregates quota that queried from these subclusters and uses that for the quota-verification.
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