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https://issues.apache.org/jira/browse/LUCENE-3855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225229#comment-13225229
]
Michael McCandless commented on LUCENE-3855:
--------------------------------------------
Hmm... compounding problems here is that, somehow, an exception is occurring in
a CMS merge thread, yet is never reported by the test runner. I hit a fail,
and only got this:
{noformat}
[junit] ------------- Standard Error -----------------
[junit] NOTE: reproduce with: ant test -Dtestcase=TestStressNRT
-Dtestmethod=test
-Dtests.seed=69468941c1bbf693:19e66d58475da929:69e9d2f81769b6d0
-Dargs="-Dfile.encoding=UTF-8"
[junit] NOTE: test params are: codec=Lucene3x,
sim=RandomSimilarityProvider(queryNorm=true,coord=false): {}, locale=ro,
timezone=Australia/LHI
[junit] NOTE: all tests run in this JVM:
[junit] [TestStressNRT]
[junit] NOTE: Linux 2.6.33.6-147.fc13.x86_64 amd64/Sun Microsystems Inc.
1.6.0_21 (64-bit)/cpus=24,threads=1,free=257856112,total=285933568
[junit] ------------- ---------------- ---------------
[junit] Testcase: test(org.apache.lucene.index.TestStressNRT): FAILED
[junit] info=_fu(4.0):C11/1 isn't live
[junit] junit.framework.AssertionFailedError: info=_fu(4.0):C11/1 isn't live
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:164)
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:57)
[junit] at
org.apache.lucene.util.StoreClassNameRule$1.evaluate(StoreClassNameRule.java:21)
[junit] at
org.apache.lucene.util.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:22)
[junit] at
org.apache.lucene.index.IndexWriter$ReaderPool.infoIsLive(IndexWriter.java:663)
[junit] at
org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:717)
[junit] at
org.apache.lucene.index.IndexWriter.closeInternal(IndexWriter.java:1137)
[junit] at
org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1069)
[junit] at
org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1033)
[junit] at
org.apache.lucene.index.RandomIndexWriter.close(RandomIndexWriter.java:408)
[junit] at
org.apache.lucene.index.TestStressNRT.test(TestStressNRT.java:386)
[junit] at
org.apache.lucene.util.LuceneTestCase$SubclassSetupTeardownRule$1.evaluate(LuceneTestCase.java:743)
[junit] at
org.apache.lucene.util.LuceneTestCase$InternalSetupTeardownRule$1.evaluate(LuceneTestCase.java:639)
[junit] at
org.apache.lucene.util.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:22)
[junit] at
org.apache.lucene.util.LuceneTestCase$TestResultInterceptorRule$1.evaluate(LuceneTestCase.java:538)
[junit] at
org.apache.lucene.util.LuceneTestCase$RememberThreadRule$1.evaluate(LuceneTestCase.java:600)
[junit]
[junit]
{noformat}
I also separately added a SOP to ConcurrentMergeScheduler.handleMergeException
and we are calling that... yet something is not then reporting this exception.
However: I made a silly small test case that spawns a thread that throws an
exception from its run method, and when I run that indeed I see the "unhandled
exception from thread". So I'm not sure why exceptions in CMS threads in
particular are not being reported...
> TestStressNRT failures (reproducible)
> -------------------------------------
>
> Key: LUCENE-3855
> URL: https://issues.apache.org/jira/browse/LUCENE-3855
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Dawid Weiss
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 4.0
>
> Attachments: output1.log, output2.log, output3.log, output4.log
>
>
> Build server logs. Reproduces on at least two machines.
> {noformat}
> [junit] ------------- Standard Error -----------------
> [junit] NOTE: reproduce with: ant test -Dtestcase=TestStressNRT
> -Dtestmethod=test
> -Dtests.seed=69468941c1bbf693:19e66d58475da929:69e9d2f81769b6d0
> -Dargs="-Dfile.encoding=UTF-8"
> [junit] NOTE: test params are: codec=Lucene3x,
> sim=RandomSimilarityProvider(queryNorm=true,coord=false): {}, locale=ro,
> timezone=Etc/GMT+1
> [junit] NOTE: all tests run in this JVM:
> [junit] [TestStressNRT]
> [junit] NOTE: Linux 3.0.0-16-generic amd64/Sun Microsystems Inc. 1.6.0_27
> (64-bit)/cpus=2,threads=1,free=74960064,total=135987200
> [junit] ------------- ---------------- ---------------
> [junit] Testcase: test(org.apache.lucene.index.TestStressNRT): Caused
> an ERROR
> [junit] MockDirectoryWrapper: cannot close: there are still open files:
> {_ng.cfs=8}
> [junit] java.lang.RuntimeException: MockDirectoryWrapper: cannot close:
> there are still open files: {_ng.cfs=8}
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:555)
> [junit] at
> org.apache.lucene.index.TestStressNRT.test(TestStressNRT.java:385)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$SubclassSetupTeardownRule$1.evaluate(LuceneTestCase.java:743)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$InternalSetupTeardownRule$1.evaluate(LuceneTestCase.java:639)
> [junit] at
> org.apache.lucene.util.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:22)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$TestResultInterceptorRule$1.evaluate(LuceneTestCase.java:538)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$RememberThreadRule$1.evaluate(LuceneTestCase.java:600)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:164)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:57)
> [junit] at
> org.apache.lucene.util.StoreClassNameRule$1.evaluate(StoreClassNameRule.java:21)
> [junit] at
> org.apache.lucene.util.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:22)
> [junit] Caused by: java.lang.RuntimeException: unclosed IndexInput:
> _ng.cfs
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper.addFileHandle(MockDirectoryWrapper.java:479)
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper$1.openSlice(MockDirectoryWrapper.java:777)
> [junit] at
> org.apache.lucene.store.CompoundFileDirectory.openInput(CompoundFileDirectory.java:221)
> [junit] at
> org.apache.lucene.codecs.lucene3x.TermInfosReader.<init>(TermInfosReader.java:112)
> [junit] at
> org.apache.lucene.codecs.lucene3x.Lucene3xFields.<init>(Lucene3xFields.java:84)
> [junit] at
> org.apache.lucene.codecs.lucene3x.PreFlexRWPostingsFormat$1.<init>(PreFlexRWPostingsFormat.java:51)
> [junit] at
> org.apache.lucene.codecs.lucene3x.PreFlexRWPostingsFormat.fieldsProducer(PreFlexRWPostingsFormat.java:51)
> [junit] at
> org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:108)
> [junit] at
> org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:51)
> [junit] at
> org.apache.lucene.index.IndexWriter$ReadersAndLiveDocs.getMergeReader(IndexWriter.java:521)
> [junit] at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3587)
> [junit] at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3257)
> [junit] at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:382)
> [junit] at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:451)
> [junit]
> [junit]
> [junit] Test org.apache.lucene.index.TestStressNRT FAILED
> {noformat}
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