Robert Muir created LUCENE-6098:
-----------------------------------
Summary: Indexwriter changecount assertion fail with g1gc
Key: LUCENE-6098
URL: https://issues.apache.org/jira/browse/LUCENE-6098
Project: Lucene - Core
Issue Type: Bug
Reporter: Robert Muir
This failed on 1.8.0u25 G1GC and I was able to reproduce at least once, but not
without G1.
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svn co -r 1643097 https://svn.eu.apache.org/repos/asf/lucene/dev/trunk
cd trunk/lucene/core
ant beast -Dtestcase=TestStressDeletes -Dtests.method=test
-Dtests.seed=C8F513C39231BFA2 -Dtests.slow=true -Dtests.locale=sk
-Dtests.timezone=Singapore -Dtests.asserts=true
-Dtests.file.encoding=ISO-8859-1 -Dbeast.iters=1000 -Dargs="-XX:+UseG1GC"
-Dtests.dups=8
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I am not sure this is possible to debug, but the exception is scary:
{noformat}
[junit4] Suite: org.apache.lucene.index.TestStressDeletes
[junit4] 2> NOTE: reproduce with: ant test -Dtestcase=TestStressDeletes
-Dtests.method=test -Dtests.seed=C8F513C39231BFA2 -Dtests.slow=true
-Dtests.locale=sk -Dtests.timezone=Singapore -Dtests.asserts=true
-Dtests.file.encoding=ISO-8859-1
[junit4] ERROR 0.62s J5 | TestStressDeletes.test <<<
[junit4] > Throwable #1:
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught
exception in thread: Thread[id=68, name=Thread-30, state=RUNNABLE,
group=TGRP-TestStressDeletes]
[junit4] > at
__randomizedtesting.SeedInfo.seed([C8F513C39231BFA2:40A12C193CCDD25A]:0)
[junit4] > Caused by: java.lang.AssertionError: lastCommitChangeCount=130
changeCount=128
[junit4] > at
__randomizedtesting.SeedInfo.seed([C8F513C39231BFA2]:0)
[junit4] > at
org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4256)
[junit4] > at
org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2778)
[junit4] > at
org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2881)
[junit4] > at
org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2848)
[junit4] > at
org.apache.lucene.index.TestStressDeletes$1.run(TestStressDeletes.java:75)
[junit4] 2> NOTE: test params are: codec=Asserting(Lucene50):
{id=PostingsFormat(name=Direct)}, docValues:{},
sim=RandomSimilarityProvider(queryNorm=false,coord=no): {id=DFR I(ne)B1},
locale=sk, timezone=Singapore
[junit4] 2> NOTE: Linux 3.13.0-35-generic amd64/Oracle Corporation
1.8.0_25 (64-bit)/cpus=8,threads=1,free=428019792,total=499646464
[junit4] 2> NOTE: All tests run in this JVM: [TestOmitNorms,
Test2BPositions, Nested2, Nested3, Nested1, Test2BPagedBytes, TestTermsEnum2,
TestDoc, TestTwoPhaseCommitTool, TestTimSorter, TestDocTermOrdsRangeFilter,
TestWorstCaseTestBehavior, TestBasics, TestToken, TestStressDeletes]
[junit4] Completed on J5 in 0.70s, 1 test, 1 error <<< FAILURES!
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