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  1. HBase
  2. HBASE-11380

HRegion lock object is not being released properly, leading to snapshot failure

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.98.3
    • Fix Version/s: 0.99.0, 0.98.4
    • Component/s: regionserver
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Background:

      We are attempting to create ~ 750 table snapshots on a nightly basis for use in MR jobs. The jobs are run in batches, with a maximum of around 20 jobs running simultaneously.

      We have started to see the following in our region server logs (after < 1 day uptime):

      java.lang.Error: Maximum lock count exceeded
      	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.fullTryAcquireShared(ReentrantReadWriteLock.java:531)
      	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryAcquireShared(ReentrantReadWriteLock.java:491)
      	at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1326)
      	at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.tryLock(ReentrantReadWriteLock.java:873)
      	at org.apache.hadoop.hbase.regionserver.HRegion.lock(HRegion.java:5904)
      	at org.apache.hadoop.hbase.regionserver.HRegion.lock(HRegion.java:5891)
      	at org.apache.hadoop.hbase.regionserver.HRegion.startRegionOperation(HRegion.java:5798)
      	at org.apache.hadoop.hbase.regionserver.HRegion.startRegionOperation(HRegion.java:5761)
      	at org.apache.hadoop.hbase.regionserver.HRegion.processRowsWithLocks(HRegion.java:4891)
      	at org.apache.hadoop.hbase.regionserver.HRegion.mutateRowsWithLocks(HRegion.java:4856)
      	at org.apache.hadoop.hbase.regionserver.HRegion.mutateRowsWithLocks(HRegion.java:4838)
      	at org.apache.hadoop.hbase.regionserver.HRegion.mutateRow(HRegion.java:4829)
      	at org.apache.hadoop.hbase.regionserver.HRegionServer.mutateRows(HRegionServer.java:4390)
      	at org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3362)
      	at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29503)
      	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012)
      	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
      	at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:168)
      	at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:39)
      	at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:111)
      	at java.lang.Thread.run(Thread.java:744)
      

      Not sure of the cause, but the result is that snapshots cannot be created. We see this in our client logs:

      Exception in thread "main" org.apache.hadoop.hbase.snapshot.HBaseSnapshotException: org.apache.hadoop.hbase.snapshot.HBaseSnapshotException: Snapshot { ss=test-snapshot-20140619143753294 table=test type=FLUSH } had an error.  Procedure test-snapshot-20140619143753294 { waiting=[p3plpadata038.internal,60020,1403140682587, p3plpadata056.internal,60020,1403140865123, p3plpadata072.internal,60020,1403141022569] done=[p3plpadata023.internal,60020,1403140552227, p3plpadata009.internal,60020,1403140487826] }
      	at org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:342)
      	at org.apache.hadoop.hbase.master.HMaster.isSnapshotDone(HMaster.java:2907)
      	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:40494)
      	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012)
      	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
      	at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:73)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:744)
      Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via p3plpadata060.internal,60020,1403140935958:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: 
      	at org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher.rethrowException(ForeignExceptionDispatcher.java:83)
      	at org.apache.hadoop.hbase.master.snapshot.TakeSnapshotHandler.rethrowExceptionIfFailed(TakeSnapshotHandler.java:320)
      	at org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:332)
      	... 10 more
      Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: 
      	at org.apache.hadoop.hbase.procedure.Subprocedure.cancel(Subprocedure.java:270)
      	at org.apache.hadoop.hbase.procedure.ProcedureMember.submitSubprocedure(ProcedureMember.java:171)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.startNewSubprocedure(ZKProcedureMemberRpcs.java:214)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.waitForNewProcedures(ZKProcedureMemberRpcs.java:172)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.access$100(ZKProcedureMemberRpcs.java:55)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs$1.nodeChildrenChanged(ZKProcedureMemberRpcs.java:107)
      	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:348)
      	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
      	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
      
      	at sun.reflect.GeneratedConstructorAccessor17.newInstance(Unknown Source)
      	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
      	at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
      	at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
      	at org.apache.hadoop.hbase.client.RpcRetryingCaller.translateException(RpcRetryingCaller.java:207)
      	at org.apache.hadoop.hbase.client.RpcRetryingCaller.translateException(RpcRetryingCaller.java:221)
      	at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:121)
      	at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:90)
      	at org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:3327)
      	at org.apache.hadoop.hbase.client.HBaseAdmin.snapshot(HBaseAdmin.java:2722)
      	at org.apache.hadoop.hbase.client.HBaseAdmin.snapshot(HBaseAdmin.java:2655)
      	at org.apache.hadoop.hbase.client.HBaseAdmin.snapshot(HBaseAdmin.java:2596)
      	at
      [SNIP]
      Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.snapshot.HBaseSnapshotException): org.apache.hadoop.hbase.snapshot.HBaseSnapshotException: Snapshot { ss=test-snapshot-20140619143753294 table=test type=FLUSH } had an error.  Procedure test-snapshot-20140619143753294 { waiting=[p3plpadata038.internal,60020,1403140682587, p3plpadata056.internal,60020,1403140865123, p3plpadata072.internal,60020,1403141022569] done=[p3plpadata023.internal,60020,1403140552227, p3plpadata009.internal,60020,1403140487826] }
      	at org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:342)
      	at org.apache.hadoop.hbase.master.HMaster.isSnapshotDone(HMaster.java:2907)
      	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:40494)
      	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012)
      	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
      	at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:73)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:744)
      Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via p3plpadata060.internal,60020,1403140935958:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: 
      	at org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher.rethrowException(ForeignExceptionDispatcher.java:83)
      	at org.apache.hadoop.hbase.master.snapshot.TakeSnapshotHandler.rethrowExceptionIfFailed(TakeSnapshotHandler.java:320)
      	at org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:332)
      	... 10 more
      Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: 
      	at org.apache.hadoop.hbase.procedure.Subprocedure.cancel(Subprocedure.java:270)
      	at org.apache.hadoop.hbase.procedure.ProcedureMember.submitSubprocedure(ProcedureMember.java:171)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.startNewSubprocedure(ZKProcedureMemberRpcs.java:214)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.waitForNewProcedures(ZKProcedureMemberRpcs.java:172)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.access$100(ZKProcedureMemberRpcs.java:55)
      	at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs$1.nodeChildrenChanged(ZKProcedureMemberRpcs.java:107)
      	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:348)
      	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
      	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
      
      	at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1453)
      	at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1657)
      	at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1715)
      	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.isSnapshotDone(MasterProtos.java:42861)
      	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$5.isSnapshotDone(HConnectionManager.java:2048)
      	at org.apache.hadoop.hbase.client.HBaseAdmin$24.call(HBaseAdmin.java:2725)
      	at org.apache.hadoop.hbase.client.HBaseAdmin$24.call(HBaseAdmin.java:2722)
      	at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:114)
      	... 16 more
      

        Attachments

        1. HBASE-11380-v2-0.98.3.txt
          3 kB
          Craig Condit
        2. 11380-v3.txt
          2 kB
          Ted Yu
        3. 11380-v2.txt
          6 kB
          Ted Yu
        4. 11380-v1.txt
          0.8 kB
          Ted Yu

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            People

            • Assignee:
              yuzhihong@gmail.com Ted Yu
              Reporter:
              ccondit Craig Condit
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              Dates

              • Created:
                Updated:
                Resolved: