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Posted to issues@ozone.apache.org by "Sammi Chen (Jira)" <ji...@apache.org> on 2020/07/03 07:06:00 UTC

[jira] [Created] (HDDS-3918) ConcurrentModificationException in ContainerReportHandler.onMessage

Sammi Chen created HDDS-3918:
--------------------------------

             Summary: ConcurrentModificationException in ContainerReportHandler.onMessage
                 Key: HDDS-3918
                 URL: https://issues.apache.org/jira/browse/HDDS-3918
             Project: Hadoop Distributed Data Store
          Issue Type: Bug
            Reporter: Sammi Chen


2020-07-03 14:51:45,489 [EventQueue-ContainerReportForContainerReportHandler] ERROR org.apache.hadoop.hdds.server.events.SingleThreadExecutor: Error on execution message org.apache.hadoop.hdds.scm.server.SCMDatanodeHeartbeatDispatcher$ContainerReportFromDatanode@8f6e7cb
java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
        at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
        at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1044)
        at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
        at java.util.HashSet.<init>(HashSet.java:120)
        at org.apache.hadoop.hdds.scm.container.ContainerReportHandler.onMessage(ContainerReportHandler.java:127)
        at org.apache.hadoop.hdds.scm.container.ContainerReportHandler.onMessage(ContainerReportHandler.java:50)
        at org.apache.hadoop.hdds.server.events.SingleThreadExecutor.lambda$onMessage$1(SingleThreadExecutor.java:81)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
2020-07-03 14:51:45,648 [EventQueue-ContainerReportForContainerReportHandler] ERROR org.apache.hadoop.hdds.server.events.SingleThreadExecutor: Error on execution message org.apache.hadoop.hdds.scm.server.SCMDatanodeHeartbeatDispatcher$ContainerReportFromDatanode@49d2b84b
java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
        at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
        at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1044)
        at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
        at java.util.HashSet.<init>(HashSet.java:120)
        at org.apache.hadoop.hdds.scm.container.ContainerReportHandler.onMessage(ContainerReportHandler.java:127)
        at org.apache.hadoop.hdds.scm.container.ContainerReportHandler.onMessage(ContainerReportHandler.java:50)
        at org.apache.hadoop.hdds.server.events.SingleThreadExecutor.lambda$onMessage$1(SingleThreadExecutor.java:81)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)



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