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From "Aravindan Vijayan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDDS-1625) ConcurrentModificationException when SCM has containers of different owners
Date Fri, 31 May 2019 22:02:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-1625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aravindan Vijayan reassigned HDDS-1625:
---------------------------------------

    Assignee: Aravindan Vijayan

> ConcurrentModificationException when SCM has containers of different owners
> ---------------------------------------------------------------------------
>
>                 Key: HDDS-1625
>                 URL: https://issues.apache.org/jira/browse/HDDS-1625
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>             Fix For: 0.5.0
>
>
> {{SCMBlockProtocolServer#allocateBlock}} throws {{ConcurrentModificationException}} when
SCM has containers of different owners.
> {code}
> 2019-05-31 13:53:16,808 WARN org.apache.hadoop.hdds.scm.container.SCMContainerManager:
Container allocation failed for pipeline=Pipeline[ Id: 3e0eec4d-67d1-4582-a9e9-e68b0a340de6,
Nodes: abaea3d2-a8c1-47de-8cdb-7cc5ed8f23a6{ip: 10.17.219.50, host: v
> c1340.halxg.cloudera.com, certSerialId: null}, Type:RATIS, Factor:ONE, State:OPEN] requiredSize=268435456
{}
> java.util.ConcurrentModificationException
>         at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1211)
>         at java.util.TreeMap$KeyIterator.next(TreeMap.java:1265)
>         at org.apache.hadoop.hdds.scm.container.SCMContainerManager.getContainersForOwner(SCMContainerManager.java:473)
>         at org.apache.hadoop.hdds.scm.container.SCMContainerManager.getMatchingContainer(SCMContainerManager.java:394)
>         at org.apache.hadoop.hdds.scm.block.BlockManagerImpl.allocateBlock(BlockManagerImpl.java:203)
>         at org.apache.hadoop.hdds.scm.server.SCMBlockProtocolServer.allocateBlock(SCMBlockProtocolServer.java:172)
> {code}



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