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Dawid Weiss commented on LUCENE-3855: ------------------------------------- Mike, would it help if we dumped a linear sequence of each thread's ops on indexwriter/ segmentinfos, whatever else? If you can tell me which classes and methods would be of interest then I can provide such dumps with relative ease (using an aspect or even hardcoded printlns). Alternatively, can you express certain assertions that should always hold wrt multi-threaded access? I mean something that I could try to weave into the code so that we can catch an abnormal interaction pattern while it's happening (as opposed just seing the result)? > 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: > hoss-r1298470-fixed-seed__TEST-org.apache.lucene.index.TestStressNRT.xml, > 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} -- This message is automatically generated by JIRA. 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