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https://issues.apache.org/jira/browse/LUCENE-2576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12917233#action_12917233
]
Robert Muir commented on LUCENE-2576:
-------------------------------------
I just hit a similar issue myself.. but i can't reproduce it easily.
{noformat}
[junit] Testsuite: org.apache.lucene.index.TestIndexWriter
[junit] Testcase:
testCommitThreadSafety(org.apache.lucene.index.TestIndexWriter): Caused an
ERROR
[junit] MockDirectoryWrapper: cannot close: there are still open files:
{_2g.tis=1}
[junit] java.lang.RuntimeException: MockDirectoryWrapper: cannot close:
there are still open files: {_2g.tis=1}
[junit] at
org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:343)
[junit] at
org.apache.lucene.index.TestIndexWriter.testCommitThreadSafety(TestIndexWriter.java:4701)
[junit] at
org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:795)
[junit] at
org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:768)
[junit] Caused by: java.lang.RuntimeException: unclosed IndexInput
[junit] at
org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:300)
[junit] at
org.apache.lucene.store.Directory.openInput(Directory.java:138)
[junit] at
org.apache.lucene.index.codecs.preflex.TermInfosReader.<init>(TermInfosReader.java:106)
[junit] at
org.apache.lucene.index.codecs.preflex.PreFlexFields.<init>(PreFlexFields.java:78)
[junit] at
org.apache.lucene.index.codecs.preflexrw.PreFlexRWCodec$1.<init>(PreFlexRWCodec.java:54)
[junit] at
org.apache.lucene.index.codecs.preflexrw.PreFlexRWCodec.fieldsProducer(PreFlexRWCodec.java:54)
[junit] at
org.apache.lucene.index.SegmentReader$CoreReaders.<init>(SegmentReader.java:136)
[junit] at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:536)
[junit] at
org.apache.lucene.index.SegmentReader.get(SegmentReader.java:509)
[junit] at
org.apache.lucene.index.DirectoryReader.<init>(DirectoryReader.java:245)
[junit] at
org.apache.lucene.index.DirectoryReader.doReopen(DirectoryReader.java:503)
[junit] at
org.apache.lucene.index.DirectoryReader.access$000(DirectoryReader.java:48)
[junit] at
org.apache.lucene.index.DirectoryReader$2.doBody(DirectoryReader.java:496)
[junit] at
org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:630)
[junit] at
org.apache.lucene.index.DirectoryReader.doReopenNoWriter(DirectoryReader.java:491)
[junit] at
org.apache.lucene.index.DirectoryReader.doReopen(DirectoryReader.java:449)
[junit] at
org.apache.lucene.index.DirectoryReader.reopen(DirectoryReader.java:409)
[junit] at
org.apache.lucene.index.TestIndexWriter$9.run(TestIndexWriter.java:4680)
[junit]
[junit]
[junit] Tests run: 116, Failures: 0, Errors: 1, Time elapsed: 28.646 sec
[junit]
[junit] ------------- Standard Output ---------------
[junit] NOTE: reproduce with: ant test -Dtestcase=TestIndexWriter
-Dtestmethod=testCommitThreadSafety
-Dtests.seed=-8057983090429434268:7680346069737615565
[junit] NOTE: test params are: codec=PreFlex, locale=mk_MK,
timezone=America/Fortaleza
{noformat}
> Intermittent failure in TestIndexWriter.testCommitThreadSafety
> --------------------------------------------------------------
>
> Key: LUCENE-2576
> URL: https://issues.apache.org/jira/browse/LUCENE-2576
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Michael McCandless
> Fix For: 4.0
>
> Attachments: LUCENE-2576.patch
>
>
> Mark's while(1) hudson box found this failure (and I can repro it too):
> {noformat}
> Error Message
> MockRAMDirectory: cannot close: there are still open files: {_1m.cfs=1,
> _1k.cfs=1, _14.cfs=1, _1g.cfs=1, _1h.cfs=1, _1f.cfs=1, _1n.cfs=1,
> _1i.cfs=1, _1j.cfs=1, _1l.cfs=1}
> Stacktrace
> java.lang.RuntimeException: MockRAMDirectory: cannot close: there are
> still open files: {_1m.cfs=1, _1k.cfs=1, _14.cfs=1, _1g.cfs=1,
> _1h.cfs=1, _1f.cfs=1, _1n.cfs=1, _1i.cfs=1, _1j.cfs=1, _1l.cfs=1}
> at
> org.apache.lucene.store.MockRAMDirectory.close(MockRAMDirectory.java:282)
> at
> org.apache.lucene.index.TestIndexWriter.testCommitThreadSafety(TestIndexWriter.java:4616)
> at
> org.apache.lucene.util.LuceneTestCase.runBare(LuceneTestCase.java:328)
> Standard Output
> NOTE: random codec of testcase 'testCommitThreadSafety' was: Sep
> Standard Error
> The following exceptions were thrown by threads:
> *** Thread: Thread-1784 ***
> java.lang.RuntimeException: junit.framework.AssertionFailedError: null
> at
> org.apache.lucene.index.TestIndexWriter$9.run(TestIndexWriter.java:4606)
> Caused by: junit.framework.AssertionFailedError: null
> at junit.framework.Assert.fail(Assert.java:47)
> at junit.framework.Assert.assertTrue(Assert.java:20)
> at junit.framework.Assert.assertTrue(Assert.java:27)
> at
> org.apache.lucene.index.TestIndexWriter$9.run(TestIndexWriter.java:4597)
> {noformat}
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