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https://issues.apache.org/jira/browse/LUCENE-4953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13641126#comment-13641126
]
Uwe Schindler commented on LUCENE-4953:
---------------------------------------
Another possibility to make the readerClosed notification working, would be to
have on PCR and PAR a 3rd mode (pkg-private ctor) where doClose() is a noop. In
that case, the PCR could call close() on all of its subReaders, but the
refCount or the childs are not closed unless otherwise specified in the ctor.
And we dont need to make the private notify method visible to other classes.
I will provide a patch tomorrow, this seems to be the cleanest solution for the
readerClosedListener bug (but not the test failures).
> readerClosedListener is not invoked for ParallelCompositeReader's leaves
> ------------------------------------------------------------------------
>
> Key: LUCENE-4953
> URL: https://issues.apache.org/jira/browse/LUCENE-4953
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Uwe Schindler
> Fix For: 5.0, 4.4
>
> Attachments: LUCENE-4953.patch, LUCENE-4953.patch, LUCENE-4953.patch
>
>
> There was a test failure last night:
> {noformat}
> 1 tests failed.
> REGRESSION:
> org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest.testBasic
> Error Message:
> testBasic(org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest):
> Insane FieldCache usage(s) found expected:<0> but was:<2>
> Stack Trace:
> java.lang.AssertionError:
> testBasic(org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest):
> Insane FieldCache usage(s) found expected:<0> but was:<2>
> at
> __randomizedtesting.SeedInfo.seed([1F9C2A2AD23A8E02:B466373F0DE6082C]:0)
> at org.junit.Assert.fail(Assert.java:93)
> at org.junit.Assert.failNotEquals(Assert.java:647)
> at org.junit.Assert.assertEquals(Assert.java:128)
> at org.junit.Assert.assertEquals(Assert.java:472)
> at
> org.apache.lucene.util.LuceneTestCase.assertSaneFieldCaches(LuceneTestCase.java:592)
> at
> org.apache.lucene.util.TestRuleFieldCacheSanity$1.evaluate(TestRuleFieldCacheSanity.java:55)
> at
> org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:46)
> at
> com.carrotsearch.randomizedtesting.rules.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:55)
> at
> org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:49)
> at
> org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:70)
> at
> org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:48)
> at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at
> com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:358)
> at
> com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:782)
> at
> com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:442)
> at
> com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:746)
> at
> com.carrotsearch.randomizedtesting.RandomizedRunner$3.evaluate(RandomizedRunner.java:648)
> at
> com.carrotsearch.randomizedtesting.RandomizedRunner$4.evaluate(RandomizedRunner.java:682)
> at
> com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:693)
> at
> org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:46)
> at
> org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:42)
> at
> com.carrotsearch.randomizedtesting.rules.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:55)
> at
> com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:39)
> at
> com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:39)
> at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at
> org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:43)
> at
> org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:48)
> at
> org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:70)
> at
> org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:55)
> at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at
> com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:358)
> at java.lang.Thread.run(Thread.java:722)
> Build Log:
> [...truncated 6904 lines...]
> [junit4:junit4] Suite:
> org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest
> [junit4:junit4] 2> *** BEGIN
> testBasic(org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest):
> Insane FieldCache usage(s) ***
> [junit4:junit4] 2> VALUEMISMATCH: Multiple distinct value objects for
> ParallelAtomicReader(_0(5.0):C3)+id
> [junit4:junit4] 2> 'ParallelAtomicReader(_0(5.0):C3)'=>'id',class
> org.apache.lucene.index.SortedDocValues,0.5=>org.apache.lucene.search.FieldCacheImpl$SortedDocValuesImpl#386041791
> (size =~ 232 bytes)
> [junit4:junit4] 2>
> 'ParallelAtomicReader(_0(5.0):C3)'=>'id',int,org.apache.lucene.search.FieldCache.DEFAULT_INT_PARSER=>org.apache.lucene.search.FieldCacheImpl$IntsFromArray#140912913
> (size =~ 48 bytes)
> [junit4:junit4] 2>
> 'ParallelAtomicReader(_0(5.0):C3)'=>'id',int,null=>org.apache.lucene.search.FieldCacheImpl$IntsFromArray#140912913
> (size =~ 48 bytes)
> [junit4:junit4] 2>
> [junit4:junit4] 2> VALUEMISMATCH: Multiple distinct value objects for
> ParallelAtomicReader(_1(5.0):C5)+id
> [junit4:junit4] 2>
> 'ParallelAtomicReader(_1(5.0):C5)'=>'id',int,null=>org.apache.lucene.search.FieldCacheImpl$IntsFromArray#1105632232
> (size =~ 56 bytes)
> [junit4:junit4] 2>
> 'ParallelAtomicReader(_1(5.0):C5)'=>'id',int,org.apache.lucene.search.FieldCache.DEFAULT_INT_PARSER=>org.apache.lucene.search.FieldCacheImpl$IntsFromArray#1105632232
> (size =~ 56 bytes)
> [junit4:junit4] 2> 'ParallelAtomicReader(_1(5.0):C5)'=>'id',class
> org.apache.lucene.index.SortedDocValues,0.5=>org.apache.lucene.search.FieldCacheImpl$SortedDocValuesImpl#27148040
> (size =~ 232 bytes)
> [junit4:junit4] 2>
> [junit4:junit4] 2> *** END
> testBasic(org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest):
> Insane FieldCache usage(s) ***
> [junit4:junit4] 2> NOTE: download the large Jenkins line-docs file by
> running 'ant get-jenkins-line-docs' in the lucene directory.
> [junit4:junit4] 2> NOTE: reproduce with: ant test
> -Dtestcase=AllGroupHeadsCollectorTest -Dtests.method=testBasic
> -Dtests.seed=1F9C2A2AD23A8E02 -Dtests.multiplier=2 -Dtests.nightly=true
> -Dtests.slow=true
> -Dtests.linedocsfile=/home/hudson/lucene-data/enwiki.random.lines.txt
> -Dtests.locale=be_BY -Dtests.timezone=Asia/Manila
> -Dtests.file.encoding=US-ASCII
> [junit4:junit4] FAILURE 0.75s J1 | AllGroupHeadsCollectorTest.testBasic <<<
> [junit4:junit4] > Throwable #1: java.lang.AssertionError:
> testBasic(org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest):
> Insane FieldCache usage(s) found expected:<0> but was:<2>
> [junit4:junit4] > at
> __randomizedtesting.SeedInfo.seed([1F9C2A2AD23A8E02:B466373F0DE6082C]:0)
> [junit4:junit4] > at
> org.apache.lucene.util.LuceneTestCase.assertSaneFieldCaches(LuceneTestCase.java:592)
> [junit4:junit4] > at java.lang.Thread.run(Thread.java:722)
> [junit4:junit4] 2> NOTE: test params are: codec=Lucene42:
> {sort3=MockFixedIntBlock(blockSize=733), id=Pulsing41(freqCutoff=3
> minBlockSize=50 maxBlockSize=177), content=MockFixedIntBlock(blockSize=733),
> author=Pulsing41(freqCutoff=3 minBlockSize=50 maxBlockSize=177),
> sort2=MockVariableIntBlock(baseBlockSize=71), sort1=Pulsing41(freqCutoff=3
> minBlockSize=50 maxBlockSize=177), group=Pulsing41(freqCutoff=3
> minBlockSize=50 maxBlockSize=177)},
> docValues:{author_dv=DocValuesFormat(name=Disk),
> group_dv=DocValuesFormat(name=Disk)},
> sim=RandomSimilarityProvider(queryNorm=false,coord=yes): {content=IB LL-L1,
> author=DFR GBZ(0.3)}, locale=be_BY, timezone=Asia/Manila
> [junit4:junit4] 2> NOTE: FreeBSD 9.0-RELEASE amd64/Oracle Corporation
> 1.7.0_17 (64-bit)/cpus=16,threads=1,free=157973280,total=249626624
> [junit4:junit4] 2> NOTE: All tests run in this JVM:
> [GroupFacetCollectorTest, AllGroupsCollectorTest, AllGroupHeadsCollectorTest]
> {noformat}
> It reproduces, and happens because ParallelCompositeReader isn't invoking the
> reader listeners on its .leaves() when everything is closed. I made a
> separate test case to show the issue ...
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