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https://issues.apache.org/jira/browse/HDDS-3669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17136498#comment-17136498
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maobaolong commented on HDDS-3669:
----------------------------------
[~nanda] Yeah, i just did a small modified of Ozone source code to test TWO
replication support, so would you like to add the robust codes given by my
previous comment to avoid this unexpected inconsistent occur.
> SCM Infinite loop in BlockManagerImpl.allocateBlock
> ---------------------------------------------------
>
> Key: HDDS-3669
> URL: https://issues.apache.org/jira/browse/HDDS-3669
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: SCM
> Affects Versions: 0.6.0
> Reporter: maobaolong
> Assignee: maobaolong
> Priority: Major
> Labels: Triaged
>
> The following step can reproduce this issue
> - A new ozone cluster with only a factor three pipeline
> - put a big file(1G) into cluster, during the put process, we kill the
> leader datanode of this pipeline.
> The put command will hang, the following log will fill the scm log file.
> 2020-05-27 17:32:46,988 [IPC Server handler 23 on default port 9863] WARN
> org.apache.hadoop.hdds.scm.container.SCMContainerManager: Container
> allocation failed for pipeline=Pipeline[ Id:
> bf7dd356-2d97-4b2a-8a81-e2ddd25bc5a1, Nodes:
> e859cad9-c7f6-451a-a039-af06103aa978{ip: 127.0.0.1, host: localhost,
> networkLocation: /default-rack, certSerialId:
> null}1cd2bf20-a791-42a0-b4cd-b26d995cb8eb{ip: 127.0.0.1, host: localhost,
> networkLocation: /default-rack, certSerialId:
> null}0827f3bb-0d94-435a-a157-4db2c84cdedf{ip: 127.0.0.1, host: localhost,
> networkLocation: /default-rack, certSerialId: null}, Type:RATIS, Factor:3,
> State:OPEN, leaderId:0827f3bb-0d94-435a-a157-4db2c84cdedf,
> CreationTimestamp2020-05-27T08:05:36.590Z] requiredSize=268435456 {}
> org.apache.hadoop.hdds.scm.pipeline.PipelineNotFoundException:
> PipelineID=bf7dd356-2d97-4b2a-8a81-e2ddd25bc5a1 not found
> at
> org.apache.hadoop.hdds.scm.pipeline.PipelineStateMap.getContainers(PipelineStateMap.java:301)
> at
> org.apache.hadoop.hdds.scm.pipeline.PipelineStateManager.getContainers(PipelineStateManager.java:95)
> at
> org.apache.hadoop.hdds.scm.pipeline.SCMPipelineManager.getContainersInPipeline(SCMPipelineManager.java:360)
> at
> org.apache.hadoop.hdds.scm.container.SCMContainerManager.getContainersForOwner(SCMContainerManager.java:507)
> at
> org.apache.hadoop.hdds.scm.container.SCMContainerManager.getMatchingContainer(SCMContainerManager.java:428)
> at
> org.apache.hadoop.hdds.scm.block.BlockManagerImpl.allocateBlock(BlockManagerImpl.java:230)
> at
> org.apache.hadoop.hdds.scm.server.SCMBlockProtocolServer.allocateBlock(SCMBlockProtocolServer.java:190)
> at
> org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.allocateScmBlock(ScmBlockLocationProtocolServerSideTranslatorPB.java:167)
> at
> org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.processMessage(ScmBlockLocationProtocolServerSideTranslatorPB.java:119)
> at
> org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:74)
> at
> org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.send(ScmBlockLocationProtocolServerSideTranslatorPB.java:100)
> at
> org.apache.hadoop.hdds.protocol.proto.ScmBlockLocationProtocolProtos$ScmBlockLocationProtocolService$2.callBlockingMethod(ScmBlockLocationProtocolProtos.java:13303)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:999)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:927)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2915)
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