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Nanda kumar updated HDDS-1752: ------------------------------ Target Version/s: 0.4.1 (was: 0.5.0) > ConcurrentModificationException while handling DeadNodeHandler event > -------------------------------------------------------------------- > > Key: HDDS-1752 > URL: https://issues.apache.org/jira/browse/HDDS-1752 > Project: Hadoop Distributed Data Store > Issue Type: Bug > Components: SCM > Affects Versions: 0.4.0 > Reporter: Mukul Kumar Singh > Assignee: Nanda kumar > Priority: Major > Labels: MiniOzoneChaosCluster > > ConcurrentModificationException while handling DeadNodeHandler event > {code} > 2019-07-02 19:29:25,190 ERROR events.SingleThreadExecutor > (SingleThreadExecutor.java:lambda$onMessage$1(88)) - Error on execution > message 56591ec5-c9e4-416c-9a36-db0507739fe5{ip: 192.168.0.2, host: 192.16 > 8.0.2, networkLocation: /default-rack, certSerialId: null} > java.util.ConcurrentModificationException > at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442) > at java.util.HashMap$KeyIterator.next(HashMap.java:1466) > at java.lang.Iterable.forEach(Iterable.java:74) > at > java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) > at > org.apache.hadoop.hdds.scm.node.DeadNodeHandler.lambda$destroyPipelines$1(DeadNodeHandler.java:99) > at java.util.Optional.ifPresent(Optional.java:159) > at > org.apache.hadoop.hdds.scm.node.DeadNodeHandler.destroyPipelines(DeadNodeHandler.java:98) > at > org.apache.hadoop.hdds.scm.node.DeadNodeHandler.onMessage(DeadNodeHandler.java:78) > at > org.apache.hadoop.hdds.scm.node.DeadNodeHandler.onMessage(DeadNodeHandler.java:44) > at > org.apache.hadoop.hdds.server.events.SingleThreadExecutor.lambda$onMessage$1(SingleThreadExecutor.java:85) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org