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From "Stanislav Lukyanov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-11968) FailureProcessor reports tcp-comm-worker as blocked when resolving communication errors in ZK
Date Tue, 09 Jul 2019 08:08:00 GMT
Stanislav Lukyanov created IGNITE-11968:
-------------------------------------------

             Summary: FailureProcessor reports tcp-comm-worker as blocked when resolving communication
errors in ZK
                 Key: IGNITE-11968
                 URL: https://issues.apache.org/jira/browse/IGNITE-11968
             Project: Ignite
          Issue Type: Improvement
    Affects Versions: 2.7
            Reporter: Stanislav Lukyanov


When multiple clients fail (stopped) at the same time and ZK discovery is used FailureProcessor
treats tcp-comm-worker as blocked with the following trace:
{code}
Thread [name="tcp-comm-worker-#1", id=122, state=WAITING, blockCnt=1465, waitCnt=4557]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:304)
        at o.a.i.i.util.future.GridFutureAdapter.get0(GridFutureAdapter.java:178)
        at o.a.i.i.util.future.GridFutureAdapter.get(GridFutureAdapter.java:141)
        at o.a.i.spi.discovery.zk.internal.ZookeeperDiscoveryImpl.resolveCommunicationError(ZookeeperDiscoveryImpl.java:359)
        at o.a.i.spi.discovery.zk.ZookeeperDiscoverySpi.resolveCommunicationFailure(ZookeeperDiscoverySpi.java:259)
        at o.a.i.i.managers.discovery.GridDiscoveryManager.resolveCommunicationError(GridDiscoveryManager.java:2549)
        at o.a.i.i.managers.GridManagerAdapter$1.resolveCommunicationFailure(GridManagerAdapter.java:626)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi.processClientCreationError(TcpCommunicationSpi.java:3530)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:3483)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:2987)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2870)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi.access$6000(TcpCommunicationSpi.java:271)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi$CommunicationWorker.processDisconnect(TcpCommunicationSpi.java:4489)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi$CommunicationWorker.body(TcpCommunicationSpi.java:4294)
        at o.a.i.i.util.worker.GridWorker.run(GridWorker.java:120)
        at o.a.i.spi.communication.tcp.TcpCommunicationSpi$5.body(TcpCommunicationSpi.java:2237)
        at o.a.i.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)
{code}



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