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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2021/09/27 08:31:38 UTC
[GitHub] [ozone] ChenSammi opened a new pull request #2679: HDDS-5785. containerCreationLock is a severe bottleneck when there are many containers to create
ChenSammi opened a new pull request #2679:
URL: https://github.com/apache/ozone/pull/2679
https://issues.apache.org/jira/browse/HDDS-578
With this striped lock, the contension is dropped to a low state. The average create container time is dropped from 60s to 1s in the same test.
`---ts=2021-09-26 11:48:12;thread_name=ChunkWriter-101-0;id=ec;is_daemon=true;priority=5;TCCL=sun.misc.Launcher$AppClassLoader@6659c656
`---[1401.227154ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler:handleCreateContainer()
+---[0.001033ms] org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos$ContainerCommandRequestProto:hasCreateContainer() #252
+---[7.8E-4ms] com.google.common.base.Preconditions:checkArgument() #261
+---[0.001397ms] org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos$ContainerCommandRequestProto:getContainerID() #263
+---[0.003679ms] org.apache.hadoop.ozone.container.common.impl.ChunkLayOutVersion:getConfiguredVersion() #266
+---[0.001038ms] org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos$ContainerCommandRequestProto:getPipelineID() #268
+---[9.06E-4ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler:getDatanodeId() #269
+---[0.00287ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueContainerData:<init>() #269
+---[0.002747ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer:<init>() #272
+---[0.0041ms] com.google.common.util.concurrent.Striped:get() #277
+---[0.001554ms] org.apache.hadoop.ozone.container.common.impl.ContainerSet:getContainer() #280
+---[1401.138626ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer:create() #281
+---[0.008657ms] org.apache.hadoop.ozone.container.common.impl.ContainerSet:addContainer() #282
+---[0.024103ms] org.apache.hadoop.ozone.container.keyvalue.KeyValueHandler:sendICR() #297
`---[0.002756ms] org.apache.hadoop.hdds.scm.protocolPB.ContainerCommandResponseBuilders:getSuccessResponse() #302
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[GitHub] [ozone] bshashikant edited a comment on pull request #2679: HDDS-5785. containerCreationLock is a severe bottleneck when there are many containers to create
Posted by GitBox <gi...@apache.org>.
bshashikant edited a comment on pull request #2679:
URL: https://github.com/apache/ozone/pull/2679#issuecomment-939676072
Thanks @ChenSammi for the contribution and @bharatviswa504 for the review..
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[GitHub] [ozone] bshashikant merged pull request #2679: HDDS-5785. containerCreationLock is a severe bottleneck when there are many containers to create
Posted by GitBox <gi...@apache.org>.
bshashikant merged pull request #2679:
URL: https://github.com/apache/ozone/pull/2679
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[GitHub] [ozone] bshashikant commented on pull request #2679: HDDS-5785. containerCreationLock is a severe bottleneck when there are many containers to create
Posted by GitBox <gi...@apache.org>.
bshashikant commented on pull request #2679:
URL: https://github.com/apache/ozone/pull/2679#issuecomment-939676072
Thanks @ChenSammi for the review.
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