Ayush Saxena created HDFS-13945:
-----------------------------------
Summary: 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
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/]
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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