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From "Michael McCandless (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3855) TestStressNRT failures (reproducible)
Date Thu, 08 Mar 2012 14:45:57 GMT

    [ 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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