[
https://issues.apache.org/jira/browse/TEZ-2421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529679#comment-14529679
]
Bikas Saha commented on TEZ-2421:
---------------------------------
"App Shared Pool - #1" #102 daemon prio=5 os_prio=0 tid=0x0000000002426000
nid=0x8bd waiting on condition [0x00007fa2a841d000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006f58b09c0> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
at
java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(ReentrantReadWriteLock.java:943)
at
org.apache.tez.dag.app.dag.impl.VertexImpl.scheduleTasks(VertexImpl.java:1389)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerPluginContextImpl.scheduleVertexTasks(VertexManager.java:206)
- locked <0x00000006f58d2c08> (a
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerPluginContextImpl)
at
org.apache.tez.dag.library.vertexmanager.InputReadyVertexManager.handleSourceTaskFinished(InputReadyVertexManager.java:277)
at
org.apache.tez.dag.library.vertexmanager.InputReadyVertexManager.onSourceTaskCompleted(InputReadyVertexManager.java:198)
- locked <0x00000006f58d2d90> (a
org.apache.tez.dag.library.vertexmanager.InputReadyVertexManager)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerEventSourceTaskCompleted.invoke(VertexManager.java:601)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerEvent$1.run(VertexManager.java:656)
- locked <0x00000006f58d2d30> (a
org.apache.tez.dag.app.dag.impl.VertexManager)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerEvent$1.run(VertexManager.java:651)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerEvent.call(VertexManager.java:651)
at
org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerEvent.call(VertexManager.java:640)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
"TaskSchedulerAppCaller #0" #92 daemon prio=5 os_prio=0 tid=0x0000000001884800
nid=0x8af waiting on condition [0x00007fa2a9127000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000007aa165038> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl.getState(TaskAttemptImpl.java:547)
at
org.apache.tez.dag.app.dag.impl.TaskImpl.selectBestAttempt(TaskImpl.java:715)
at
org.apache.tez.dag.app.dag.impl.TaskImpl.getProgress(TaskImpl.java:473)
at
org.apache.tez.dag.app.dag.impl.VertexImpl.computeProgress(VertexImpl.java:1179)
at
org.apache.tez.dag.app.dag.impl.VertexImpl.getProgress(VertexImpl.java:1117)
at org.apache.tez.dag.app.dag.impl.DAGImpl.getProgress(DAGImpl.java:767)
at
org.apache.tez.dag.app.DAGAppMaster.getProgress(DAGAppMaster.java:1134)
at
org.apache.tez.dag.app.rm.TaskSchedulerEventHandler.getProgress(TaskSchedulerEventHandler.java:556)
at
org.apache.tez.dag.app.rm.TaskSchedulerAppCallbackWrapper$GetProgressCallable.call(TaskSchedulerAppCallbackWrapper.java:291)
at
org.apache.tez.dag.app.rm.TaskSchedulerAppCallbackWrapper$GetProgressCallable.call(TaskSchedulerAppCallbackWrapper.java:282)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
"IPC Server handler 0 on 59316" #52 daemon prio=5 os_prio=0
tid=0x00007fa2d967b000 nid=0x887 waiting on condition [0x00007fa2abb4a000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006f58b09c0> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
at
org.apache.tez.dag.app.dag.impl.VertexImpl.getVertexProgress(VertexImpl.java:1126)
at
org.apache.tez.dag.app.dag.impl.DAGImpl.getDAGStatus(DAGImpl.java:806)
at
org.apache.tez.dag.app.dag.impl.DAGImpl.getDAGStatus(DAGImpl.java:867)
at
org.apache.tez.dag.api.client.DAGClientHandler.getDAGStatus(DAGClientHandler.java:67)
at
org.apache.tez.dag.api.client.rpc.DAGClientAMProtocolBlockingPBServerImpl.getDAGStatus(DAGClientAMProtocolBlockingPBServerImpl.java:99)
at
org.apache.tez.dag.api.client.rpc.DAGClientAMProtocolRPC$DAGClientAMProtocol$2.callBlockingMethod(DAGClientAMProtocolRPC.java:7465)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
"Dispatcher thread: Central" #36 prio=5 os_prio=0 tid=0x00007fa2bc653800
nid=0x878 waiting on condition [0x00007fa2ac353000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006f58b09c0> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
at
org.apache.tez.dag.app.dag.impl.VertexImpl.getTaskLocationHint(VertexImpl.java:1162)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl.getTaskLocationHint(TaskAttemptImpl.java:940)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl$ScheduleTaskattemptTransition.transition(TaskAttemptImpl.java:1033)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl$ScheduleTaskattemptTransition.transition(TaskAttemptImpl.java:1003)
at
org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
at
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
at
org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
at
org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
- locked <0x00000007aa1651b8> (a
org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:676)
at
org.apache.tez.dag.app.dag.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:113)
at
org.apache.tez.dag.app.DAGAppMaster$TaskAttemptEventDispatcher.handle(DAGAppMaster.java:1920)
at
org.apache.tez.dag.app.DAGAppMaster$TaskAttemptEventDispatcher.handle(DAGAppMaster.java:1905)
at
org.apache.tez.common.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
at org.apache.tez.common.AsyncDispatcher$1.run(AsyncDispatcher.java:114)
at java.lang.Thread.run(Thread.java:745)
> Deadlock in AM because attempt and vertex locking each other out
> ----------------------------------------------------------------
>
> Key: TEZ-2421
> URL: https://issues.apache.org/jira/browse/TEZ-2421
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Bikas Saha
> Assignee: Bikas Saha
>
> Ideally locks should be taken one way - either going down or up. Preferably
> not going up because most such data can be passed in during object
> construction.
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