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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1110) deadlock found in major compaction
Date Tue, 26 Feb 2013 15:56:12 GMT
Eric Newton created ACCUMULO-1110:
-------------------------------------

             Summary: deadlock found in major compaction
                 Key: ACCUMULO-1110
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1110
             Project: Accumulo
          Issue Type: Bug
          Components: tserver
         Environment: ten-node test cluster running random walk test
            Reporter: Eric Newton
            Assignee: Eric Newton
            Priority: Critical
             Fix For: 1.5.0


{noformat}
Found one Java-level deadlock:
=============================
"ClientPool 131":
  waiting to lock monitor 0x000000005e264210 (object 0x0000000765399a38, a org.apache.accumulo.server.tabletserver.Tablet),
  which is held by "ClientPool 76"
"ClientPool 76":
  waiting to lock monitor 0x0000000061ed94d0 (object 0x000000075a3a0478, a org.apache.accumulo.server.tabletserver.CompactionQueue),
  which is held by "major compactor 3"
"major compactor 3":
  waiting to lock monitor 0x00002aaac470b690 (object 0x0000000764d0d688, a org.apache.accumulo.server.tabletserver.Tablet),
  which is held by "ClientPool 36"
"ClientPool 36":
  waiting to lock monitor 0x0000000061ed94d0 (object 0x000000075a3a0478, a org.apache.accumulo.server.tabletserver.CompactionQueue),
  which is held by "major compactor 3"

Java stack information for the threads listed above:
===================================================
"ClientPool 131":
	at org.apache.accumulo.server.tabletserver.Tablet.importMapFiles(Tablet.java:3666)
	- waiting to lock <0x0000000765399a38> (a org.apache.accumulo.server.tabletserver.Tablet)
	at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.bulkImport(TabletServer.java:898)
	at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
	at $Proxy2.bulkImport(Unknown Source)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$bulkImport.getResult(TabletClientService.java:2153)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$bulkImport.getResult(TabletClientService.java:2137)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
	at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:156)
	at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
	at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:208)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
	at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
	at java.lang.Thread.run(Thread.java:662)
"ClientPool 76":
	at org.apache.accumulo.server.tabletserver.CompactionQueue.offer(CompactionQueue.java:54)
	- waiting to lock <0x000000075a3a0478> (a org.apache.accumulo.server.tabletserver.CompactionQueue)
	at org.apache.accumulo.server.tabletserver.CompactionQueue.offer(CompactionQueue.java:28)
	at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:653)
	at org.apache.accumulo.trace.instrument.TraceExecutorService.execute(TraceExecutorService.java:39)
	at org.apache.accumulo.server.tabletserver.TabletServerResourceManager.executeMajorCompaction(TabletServerResourceManager.java:717)
	at org.apache.accumulo.server.tabletserver.TabletServerResourceManager$TabletResourceManager.executeMajorCompaction(TabletServerResourceManager.java:694)
	at org.apache.accumulo.server.tabletserver.Tablet.initiateMajorCompaction(Tablet.java:2924)
	- locked <0x0000000765399a38> (a org.apache.accumulo.server.tabletserver.Tablet)
	at org.apache.accumulo.server.tabletserver.Tablet.importMapFiles(Tablet.java:3689)
	at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.bulkImport(TabletServer.java:898)
	at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
	at $Proxy2.bulkImport(Unknown Source)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$bulkImport.getResult(TabletClientService.java:2153)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$bulkImport.getResult(TabletClientService.java:2137)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
	at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:156)
	at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
	at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:208)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
	at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
	at java.lang.Thread.run(Thread.java:662)
"major compactor 3":
	at org.apache.accumulo.server.tabletserver.Tablet$CompactionRunner.getNumFiles(Tablet.java:2895)
	- waiting to lock <0x0000000764d0d688> (a org.apache.accumulo.server.tabletserver.Tablet)
	at org.apache.accumulo.server.tabletserver.Tablet$CompactionRunner.compareTo(Tablet.java:2912)
	at org.apache.accumulo.server.tabletserver.Tablet$CompactionRunner.compareTo(Tablet.java:2848)
	at org.apache.accumulo.trace.instrument.TraceRunnable.compareTo(TraceRunnable.java:54)
	at org.apache.accumulo.trace.instrument.TraceRunnable.compareTo(TraceRunnable.java:23)
	at java.util.Collections.min(Collections.java:574)
	at org.apache.accumulo.server.tabletserver.CompactionQueue.poll(CompactionQueue.java:38)
	- locked <0x000000075a3a0478> (a org.apache.accumulo.server.tabletserver.CompactionQueue)
	at org.apache.accumulo.server.tabletserver.CompactionQueue.take(CompactionQueue.java:78)
	- locked <0x000000075a3a0478> (a org.apache.accumulo.server.tabletserver.CompactionQueue)
	at org.apache.accumulo.server.tabletserver.CompactionQueue.take(CompactionQueue.java:28)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
	at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
	at java.lang.Thread.run(Thread.java:662)
"ClientPool 36":
	at org.apache.accumulo.server.tabletserver.CompactionQueue.offer(CompactionQueue.java:54)
	- waiting to lock <0x000000075a3a0478> (a org.apache.accumulo.server.tabletserver.CompactionQueue)
	at org.apache.accumulo.server.tabletserver.CompactionQueue.offer(CompactionQueue.java:28)
	at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:653)
	at org.apache.accumulo.trace.instrument.TraceExecutorService.execute(TraceExecutorService.java:39)
	at org.apache.accumulo.server.tabletserver.TabletServerResourceManager.executeMajorCompaction(TabletServerResourceManager.java:717)
	at org.apache.accumulo.server.tabletserver.TabletServerResourceManager$TabletResourceManager.executeMajorCompaction(TabletServerResourceManager.java:694)
	at org.apache.accumulo.server.tabletserver.Tablet.initiateMajorCompaction(Tablet.java:2924)
	- locked <0x0000000764d0d688> (a org.apache.accumulo.server.tabletserver.Tablet)
	at org.apache.accumulo.server.tabletserver.Tablet.compactAll(Tablet.java:3871)
	- locked <0x0000000764d0d688> (a org.apache.accumulo.server.tabletserver.Tablet)
	at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.compact(TabletServer.java:2048)
	at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
	at $Proxy2.compact(Unknown Source)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$compact.getResult(TabletClientService.java:2296)
	at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$compact.getResult(TabletClientService.java:2282)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
	at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:156)
	at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
	at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:208)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
	at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
	at java.lang.Thread.run(Thread.java:662)

Found 1 deadlock.

{noformat}


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