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https://issues.apache.org/jira/browse/HDDS-3921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sammi Chen resolved HDDS-3921.
------------------------------
Resolution: Fixed
> IllegalArgumentException triggered in
> SCMContainerPlacementRackAware.chooseDatanodes
> ------------------------------------------------------------------------------------
>
> Key: HDDS-3921
> URL: https://issues.apache.org/jira/browse/HDDS-3921
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Reporter: Sammi Chen
> Assignee: Sammi Chen
> Priority: Major
> Labels: pull-request-available
>
> The root cause is existing replicas plus replicas in replicationInFlight meet
> the crossing rack requriement, for this case, we should check
> if misReplicated again.
> 2020-07-04 16:25:01,496 [ReplicationMonitor] INFO
> org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy: currentRackCount 1,
> replicas 3, requiredRacks 2, numRacks 4
> 2020-07-04 16:25:01,496 [ReplicationMonitor] INFO
> org.apache.hadoop.hdds.scm.container.ReplicationManager: misReplicated =
> true, replicas size = 1
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: Handling
> underreplicated container: 250499
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: replicas of
> container {}#250499
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: 9.179.142.198 CLOSED
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: deletionInFlight of
> container {}#250499
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: replicationInFlight
> of container {}#250499
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: 9.180.19.147
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: 100.76.61.31
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: source of container
> {}#250499
> 2020-07-04 16:25:01,496 [ReplicationMonitor] DEBUG
> org.apache.hadoop.hdds.scm.container.ReplicationManager: 9.179.142.198
> 2020-07-04 16:25:01,496 [ReplicationMonitor] INFO
> org.apache.hadoop.hdds.scm.container.ReplicationManager: Container #250499
> expected replica count 3, but found 3, delta 0.
> 2020-07-04 16:25:01,496 [ReplicationMonitor] INFO
> org.apache.hadoop.hdds.scm.SCMCommonPlacementPolicy: currentRackCount 2,
> replicas 3, requiredRacks 2, numRacks 4
> 2020-07-04 16:25:01,496 [ReplicationMonitor] WARN
> org.apache.hadoop.hdds.scm.container.ReplicationManager: Process container
> #250499 error:
> java.lang.IllegalArgumentException
> at
> com.google.common.base.Preconditions.checkArgument(Preconditions.java:128)
> at
> org.apache.hadoop.hdds.scm.container.placement.algorithms.SCMContainerPlacementRackAware.chooseDatanodes(SCMContainerPlacementRackAware.java:101)
> at
> org.apache.hadoop.hdds.scm.container.ReplicationManager.handleUnderReplicatedContainer(ReplicationManager.java:578)
> at
> org.apache.hadoop.hdds.scm.container.ReplicationManager.processContainer(ReplicationManager.java:331)
> at
> java.util.concurrent.ConcurrentHashMap$KeySetView.forEach(ConcurrentHashMap.java:4649)
> at
> java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1082)
> at
> org.apache.hadoop.hdds.scm.container.ReplicationManager.run(ReplicationManager.java:238)
> at java.lang.Thread.run(Thread.java:748)
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