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From "Ayush Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13945) TestDataNodeVolumeFailure is Flaky
Date Tue, 02 Oct 2018 05:13:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635044#comment-16635044
] 

Ayush Saxena commented on HDFS-13945:
-------------------------------------

Thanx [~knanasi] for the comment.
 IIUC The heartbeat check function has much to do with the scenario of dead or decommissioning
datanodes and doesn't seems to be serving as such any good purpose in favor of our test even
before.As what we require is the reporting of disk error which would be done as part of the
write process and the count which we would get as part of the next heart beat and this much
will solve our purpose and to deal with the heartbeat interval we were here already very well
equipped with the supplier which would provide us the liberty to wait for the correct heartbeat.So
I don't think there was or is any need of the heartbeatCheck() function
 If there seems to be any other related purpose being handled by it which I might have missed.We
can for sure add it back. :)

> TestDataNodeVolumeFailure is Flaky
> ----------------------------------
>
>                 Key: HDFS-13945
>                 URL: https://issues.apache.org/jira/browse/HDFS-13945
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ayush Saxena
>            Assignee: Ayush Saxena
>            Priority: Major
>         Attachments: HDFS-13945-01.patch, HDFS-13945-02.patch, HDFS-13945-03.patch
>
>
> The test is failing in trunk since long.
> Reference -
> [https://builds.apache.org/job/PreCommit-HDFS-Build/25140/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailure/testUnderReplicationAfterVolFailure/]
>  
> [https://builds.apache.org/job/PreCommit-HDFS-Build/25135/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailure/testUnderReplicationAfterVolFailure/]
>  
> [https://builds.apache.org/job/PreCommit-HDFS-Build/25133/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailure/testUnderReplicationAfterVolFailure/]
>  
> [https://builds.apache.org/job/PreCommit-HDFS-Build/25104/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailure/testUnderReplicationAfterVolFailure/]
>  
>  
> Stack Trace -
>  
> Timed out waiting for condition. Thread diagnostics: Timestamp: 2018-09-26 03:32:07,162
"IPC Server handler 2 on 33471" daemon prio=5 tid=2931 timed_waiting java.lang.Thread.State:
TIMED_WAITING at sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "IPC Server handler 3 on 34285"
daemon prio=5 tid=2646 timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native
Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "org.apache.hadoop.util.JvmPauseMonitor$Monitor@1d2ee4cd"
daemon prio=5 tid=2633 timed_waiting java.lang.Thread.State: TIMED_WAITING at java.lang.Thread.sleep(Native
Method) at org.apache.hadoop.util.JvmPauseMonitor$Monitor.run(JvmPauseMonitor.java:192) at
java.lang.Thread.run(Thread.java:748) "IPC Server Responder" daemon prio=5 tid=2766 runnable
java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at org.apache.hadoop.ipc.Server$Responder.doRunLoop(Server.java:1334) at org.apache.hadoop.ipc.Server$Responder.run(Server.java:1317)
"org.eclipse.jetty.server.session.HashSessionManager@1287fc65Timer" daemon prio=5 tid=2492
timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
"qtp548667392-2533" daemon prio=5 tid=2533 timed_waiting java.lang.Thread.State: TIMED_WAITING
at sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392) at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:563)
at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:48) at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626) at java.lang.Thread.run(Thread.java:748)
"org.apache.hadoop.hdfs.server.namenode.FSNamesystem$NameNodeResourceMonitor@63818b03" daemon
prio=5 tid=2521 timed_waiting java.lang.Thread.State: TIMED_WAITING at java.lang.Thread.sleep(Native
Method) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem$NameNodeResourceMonitor.run(FSNamesystem.java:4045)
at java.lang.Thread.run(Thread.java:748) "BP-1973654218-172.17.0.2-1537975830395 heartbeating
to localhost/127.0.0.1:43522" daemon prio=5 tid=2640 timed_waiting java.lang.Thread.State:
TIMED_WAITING at java.lang.Object.wait(Native Method) at org.apache.hadoop.hdfs.server.datanode.IncrementalBlockReportManager.waitTillNextIBR(IncrementalBlockReportManager.java:158)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:717)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:844) at java.lang.Thread.run(Thread.java:748)
"AsyncAppender-Dispatcher-Thread-38" daemon prio=5 tid=70 in Object.wait() java.lang.Thread.State:
WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:502)
at org.apache.log4j.AsyncAppender$Dispatcher.run(AsyncAppender.java:548) at java.lang.Thread.run(Thread.java:748)
"IPC Server listener on 43522" daemon prio=5 tid=2499 runnable java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
at org.apache.hadoop.ipc.Server$Listener.run(Server.java:1159) "IPC Server handler 8 on 34285"
daemon prio=5 tid=2651 timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native
Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "nioEventLoopGroup-30-1" prio=10
tid=2824 runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native
Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:754) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:410)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
at java.lang.Thread.run(Thread.java:748) "IPC Server handler 7 on 43522" daemon prio=5 tid=2515
timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "qtp1255640117-2483" daemon
prio=5 tid=2483 runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native
Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101) at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:243)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:191)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:249)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.execute(ExecuteProduceConsume.java:100)
at org.eclipse.jetty.io.ManagedSelector.run(ManagedSelector.java:147) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) at java.lang.Thread.run(Thread.java:748)
"org.apache.hadoop.hdfs.server.datanode.DataXceiverServer@2b2f4b0a" daemon prio=5 tid=2815
runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.ServerSocketChannelImpl.accept0(Native
Method) at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422) at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250) at sun.nio.ch.ServerSocketAdaptor.accept(ServerSocketAdaptor.java:100)
at org.apache.hadoop.hdfs.net.TcpPeerServer.accept(TcpPeerServer.java:85) at org.apache.hadoop.hdfs.server.datanode.DataXceiverServer.run(DataXceiverServer.java:145)
at java.lang.Thread.run(Thread.java:748) "IPC Server handler 8 on 37367" daemon prio=5 tid=2779
timed_waiting
>  
> Timed out waiting for condition. Thread diagnostics: Timestamp: 2018-09-26 03:32:07,162
"IPC Server handler 2 on 33471" daemon prio=5 tid=2931 timed_waiting java.lang.Thread.State:
TIMED_WAITING at sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "IPC Server handler 3 on 34285"
daemon prio=5 tid=2646 timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native
Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "org.apache.hadoop.util.JvmPauseMonitor$Monitor@1d2ee4cd"
daemon prio=5 tid=2633 timed_waiting java.lang.Thread.State: TIMED_WAITING at java.lang.Thread.sleep(Native
Method) at org.apache.hadoop.util.JvmPauseMonitor$Monitor.run(JvmPauseMonitor.java:192) at
java.lang.Thread.run(Thread.java:748) "IPC Server Responder" daemon prio=5 tid=2766 runnable
java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at org.apache.hadoop.ipc.Server$Responder.doRunLoop(Server.java:1334) at org.apache.hadoop.ipc.Server$Responder.run(Server.java:1317)
"org.eclipse.jetty.server.session.HashSessionManager@1287fc65Timer" daemon prio=5 tid=2492
timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
"qtp548667392-2533" daemon prio=5 tid=2533 timed_waiting java.lang.Thread.State: TIMED_WAITING
at sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392) at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:563)
at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:48) at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626) at java.lang.Thread.run(Thread.java:748)
"org.apache.hadoop.hdfs.server.namenode.FSNamesystem$NameNodeResourceMonitor@63818b03" daemon
prio=5 tid=2521 timed_waiting java.lang.Thread.State: TIMED_WAITING at java.lang.Thread.sleep(Native
Method) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem$NameNodeResourceMonitor.run(FSNamesystem.java:4045)
at java.lang.Thread.run(Thread.java:748) "BP-1973654218-172.17.0.2-1537975830395 heartbeating
to localhost/127.0.0.1:43522" daemon prio=5 tid=2640 timed_waiting java.lang.Thread.State:
TIMED_WAITING at java.lang.Object.wait(Native Method) at org.apache.hadoop.hdfs.server.datanode.IncrementalBlockReportManager.waitTillNextIBR(IncrementalBlockReportManager.java:158)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:717)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:844) at java.lang.Thread.run(Thread.java:748)
"AsyncAppender-Dispatcher-Thread-38" daemon prio=5 tid=70 in Object.wait() java.lang.Thread.State:
WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:502)
at org.apache.log4j.AsyncAppender$Dispatcher.run(AsyncAppender.java:548) at java.lang.Thread.run(Thread.java:748)
"IPC Server listener on 43522" daemon prio=5 tid=2499 runnable java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
at org.apache.hadoop.ipc.Server$Listener.run(Server.java:1159) "IPC Server handler 8 on 34285"
daemon prio=5 tid=2651 timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native
Method) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "nioEventLoopGroup-30-1" prio=10
tid=2824 runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native
Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:754) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:410)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
at java.lang.Thread.run(Thread.java:748) "IPC Server handler 7 on 43522" daemon prio=5 tid=2515
timed_waiting java.lang.Thread.State: TIMED_WAITING at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467) at org.apache.hadoop.ipc.CallQueueManager.take(CallQueueManager.java:288)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2668) "qtp1255640117-2483" daemon
prio=5 tid=2483 runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native
Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101) at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:243)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:191)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:249)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.execute(ExecuteProduceConsume.java:100)
at org.eclipse.jetty.io.ManagedSelector.run(ManagedSelector.java:147) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) at java.lang.Thread.run(Thread.java:748)
"org.apache.hadoop.hdfs.server.datanode.DataXceiverServer@2b2f4b0a" daemon prio=5 tid=2815
runnable java.lang.Thread.State: RUNNABLE at sun.nio.ch.ServerSocketChannelImpl.accept0(Native
Method) at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422) at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250) at sun.nio.ch.ServerSocketAdaptor.accept(ServerSocketAdaptor.java:100)
at org.apache.hadoop.hdfs.net.TcpPeerServer.accept(TcpPeerServer.java:85) at org.apache.hadoop.hdfs.server.datanode.DataXceiverServer.run(DataXceiverServer.java:145)
at java.lang.Thread.run(Thread.java:748) "IPC Server handler 8 on 37367" daemon prio=5 tid=2779
timed_waiting



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