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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/10/07 09:06:27 UTC
[jira] [Resolved] (OAK-3235) Deadlock when closing a concurrently
used FileStore
[ https://issues.apache.org/jira/browse/OAK-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dürig resolved OAK-3235.
--------------------------------
Resolution: Fixed
Fixed at http://svn.apache.org/viewvc?rev=1707189&view=rev
> Deadlock when closing a concurrently used FileStore
> ---------------------------------------------------
>
> Key: OAK-3235
> URL: https://issues.apache.org/jira/browse/OAK-3235
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: segmentmk
> Affects Versions: 1.3.3
> Reporter: Francesco Mari
> Assignee: Michael Dürig
> Priority: Critical
> Labels: resilience
> Fix For: 1.3.8
>
> Attachments: OAK-3235-01.patch, OAK-3235-02.patch
>
>
> A deadlock was detected while stopping the {{SegmentCompactionIT}} using the exposed MBean.
> {noformat}
> Found one Java-level deadlock:
> =============================
> "pool-1-thread-23":
> waiting to lock monitor 0x00007fa8cf1f0488 (object 0x00000007a0081e48, a org.apache.jackrabbit.oak.plugins.segment.file.FileStore),
> which is held by "main"
> "main":
> waiting to lock monitor 0x00007fa8cc015ff8 (object 0x00000007a011f750, a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter),
> which is held by "pool-1-thread-23"
> Java stack information for the threads listed above:
> ===================================================
> "pool-1-thread-23":
> at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.writeSegment(FileStore.java:948)
> - waiting to lock <0x00000007a0081e48> (a org.apache.jackrabbit.oak.plugins.segment.file.FileStore)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.flush(SegmentWriter.java:228)
> - locked <0x00000007a011f750> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.prepare(SegmentWriter.java:329)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeListBucket(SegmentWriter.java:447)
> - locked <0x00000007a011f750> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeList(SegmentWriter.java:698)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1190)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1135)
> at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:400)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1126)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1154)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.getNodeState(SegmentNodeBuilder.java:100)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.updated(SegmentNodeBuilder.java:85)
> at org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder.updated(MemoryNodeBuilder.java:214)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.updated(SegmentNodeBuilder.java:81)
> at org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder.setChildNode(MemoryNodeBuilder.java:346)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeAdded(AbstractRebaseDiff.java:211)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:527)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:531)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord$2.childNodeChanged(MapRecord.java:404)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:488)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:394)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.spi.state.AbstractRebaseDiff.childNodeChanged(AbstractRebaseDiff.java:219)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:488)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compareBranch(MapRecord.java:565)
> at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:470)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.prepare(SegmentNodeStore.java:446)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.optimisticMerge(SegmentNodeStore.java:471)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.execute(SegmentNodeStore.java:527)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore.merge(SegmentNodeStore.java:205)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentCompactionIT$RandomWriter.call(SegmentCompactionIT.java:426)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentCompactionIT$RandomWriter.call(SegmentCompactionIT.java:399)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> 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)
> "main":
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.dropCache(SegmentWriter.java:850)
> - waiting to lock <0x00000007a011f750> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter)
> at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.close(FileStore.java:830)
> - locked <0x00000007a0081e48> (a org.apache.jackrabbit.oak.plugins.segment.file.FileStore)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentCompactionIT.tearDown(SegmentCompactionIT.java:266)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:36)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
> at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
> at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
> at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
> at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
> at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
> at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
> at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
> Found 1 deadlock.
> {noformat}
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