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https://issues.apache.org/jira/browse/LUCENE-3462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13114280#comment-13114280
]
Uwe Schindler commented on LUCENE-3462:
---------------------------------------
Also interesting: No other thread is running at the same time, so it simply
waits and waits for nothing else (the rest of stack trace is only internal JVM
cleanup threads and the Jenkins server itsself).
> Jenkins builds hang quite often in
> TestIndexWriterWithThreads.testCloseWithThreads
> ----------------------------------------------------------------------------------
>
> Key: LUCENE-3462
> URL: https://issues.apache.org/jira/browse/LUCENE-3462
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Uwe Schindler
>
> Last hung test run:
> [https://builds.apache.org/job/Lucene-Solr-tests-only-trunk/10638/console]
> {noformat}
> [junit] "main" prio=5 tid=0x0000000801ef3800 nid=0x1965c waiting on condition
> [0x00007fffffbfd000]
> [junit] java.lang.Thread.State: WAITING (parking)
> [junit] at sun.misc.Unsafe.park(Native Method)
> [junit] - parking to wait for <0x0000000825d853a8> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> [junit] at
> java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> [junit] at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:838)
> [junit] at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:871)
> [junit] at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1201)
> [junit] at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
> [junit] at
> java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
> [junit] at
> org.apache.lucene.index.DocumentsWriterFlushControl.markForFullFlush(DocumentsWriterFlushControl.java:403)
> [junit] at
> org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:557)
> [junit] - locked <0x0000000825d81998> (a
> org.apache.lucene.index.DocumentsWriter)
> [junit] at
> org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:2776)
> [junit] - locked <0x0000000825d7d840> (a java.lang.Object)
> [junit] at
> org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2904)
> [junit] - locked <0x0000000825d7d830> (a java.lang.Object)
> [junit] at
> org.apache.lucene.index.IndexWriter.closeInternal(IndexWriter.java:1156)
> [junit] at
> org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1099)
> [junit] at
> org.apache.lucene.index.TestIndexWriterWithThreads.testCloseWithThreads(TestIndexWriterWithThreads.java:200)
> [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [junit] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> [junit] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [junit] at java.lang.reflect.Method.invoke(Method.java:616)
> [junit] at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> [junit] at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> [junit] at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> [junit] at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> [junit] at org.junit.rules.TestWatchman$1.evaluate(TestWatchman.java:48)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
> [junit] at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> [junit] at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> [junit] at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:148)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:50)
> [junit] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> [junit] at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> [junit] at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> [junit] at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> [junit] at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> [junit] at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> [junit] at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> [junit] at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> [junit] at
> junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
> [junit] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
> [junit] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
> [junit] at
> org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:743)
> {noformat}
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