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Posted to issues@lucene.apache.org by "Gautam Worah (Jira)" <ji...@apache.org> on 2021/06/01 00:37:00 UTC
[jira] [Commented] (LUCENE-9949) Flaky test in
TestCachePurging.testBackgroundPurges
[ https://issues.apache.org/jira/browse/LUCENE-9949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17354721#comment-17354721 ]
Gautam Worah commented on LUCENE-9949:
--------------------------------------
Hmm beasting does not help either: {{./gradlew cleanTest test --tests TestCachePurging.testBackgroundPurges -Ptests.seed=4DDD0C97DB8E50CC:5D664A5C8BA9CD8C -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=shi-Tfng -Ptests.iters=200}} runs successfully for all iterations
> Flaky test in TestCachePurging.testBackgroundPurges
> ---------------------------------------------------
>
> Key: LUCENE-9949
> URL: https://issues.apache.org/jira/browse/LUCENE-9949
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/other
> Affects Versions: main (9.0)
> Environment: Ubuntu 18.04.5 LTS
> Java 11
> Reporter: Gautam Worah
> Priority: Minor
>
> While executing the `./gradlew check` command on an unrelated change, my tests crashed on this test case with the following error log:
> >>>>>
> org.apache.lucene.monitor.TestCachePurging > testBackgroundPurges FAILED
> java.lang.AssertionError: expected:<-1> but was:<21196529334563>
> at __randomizedtesting.SeedInfo.seed([4DDD0C97DB8E50CC:5D664A5C8BA9CD8C]:0)
> at org.junit.Assert.fail(Assert.java:89)
> at org.junit.Assert.failNotEquals(Assert.java:835)
> at org.junit.Assert.assertEquals(Assert.java:647)
> at org.junit.Assert.assertEquals(Assert.java:633)
> at org.apache.lucene.monitor.TestCachePurging.testBackgroundPurges(TestCachePurging.java:142)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
> at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
> at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
> at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
> at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
> at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
> at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
> at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
> at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
> at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
> at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
> at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
> at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
> at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
> at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
> at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
> at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
> at java.base/java.lang.Thread.run(Thread.java:830)
> org.apache.lucene.monitor.TestCachePurging > test suite's output saved to /home/ghw/study_ghw/lucene/lucene/monitor/build/test-results/test/outputs/OUTPUT-org.apache.lucene.monitor.TestCachePurging.txt, copied below:
> > java.lang.AssertionError: expected:<-1> but was:<21196529334563>
> > at __randomizedtesting.SeedInfo.seed([4DDD0C97DB8E50CC:5D664A5C8BA9CD8C]:0)
> > at org.junit.Assert.fail(Assert.java:89)
> > at org.junit.Assert.failNotEquals(Assert.java:835)
> > at org.junit.Assert.assertEquals(Assert.java:647)
> > at org.junit.Assert.assertEquals(Assert.java:633)
> > at org.apache.lucene.monitor.TestCachePurging.testBackgroundPurges(TestCachePurging.java:142)
> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> > at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
> > at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
> > at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> > at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
> > at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
> > at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
> > at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> > at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> > at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
> > at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
> > at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
> > at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
> > at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> > at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> > at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
> > at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
> > at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
> > at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> > at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> > at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
> > at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
> > at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
> > at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
> > at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
> > at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> > at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
> > at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
> > at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
> > at java.base/java.lang.Thread.run(Thread.java:830)
> 2> NOTE: reproduce with: gradlew test --tests TestCachePurging.testBackgroundPurges -Dtests.seed=4DDD0C97DB8E50CC -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=shi-Tfng -Dtests.timezone=Antarctica/McMurdo -Dtests.asserts=true -Dtests.file.encoding=UTF-8
> 2> NOTE: test params are: codec=Asserting(Lucene90): \{field=TestBloomFilteredLucenePostings(BloomFilteringPostingsFormat(Lucene90)), _query_id=PostingsFormat(name=Direct)}, docValues:\{_mq=DocValuesFormat(name=Lucene90), _cache_id=DocValuesFormat(name=Lucene90), _query_id=DocValuesFormat(name=Asserting)}, maxPointsInLeafNode=1939, maxMBSortInHeap=5.0141647546104515, sim=Asserting(RandomSimilarity(queryNorm=false): {}), locale=shi-Tfng, timezone=Antarctica/McMurdo
> 2> NOTE: Linux 4.15.0-142-generic amd64/Oracle Corporation 13 (64-bit)/cpus=4,threads=1,free=146228880,total=270532608
> 2> NOTE: All tests run in this JVM: [TestSuffixingNGramTokenizer, TestTermsEnumTokenFilter, TestMultipassPresearcher, TestSpanExtractors, TestMatchAllPresearcher, TestParallelMatcher, TestQueryTermComparators, TestExplainingMatcher, TestRegexpQueryHandler, TestSimilarities, TestPresearcherMatchCollector, TestTermPresearcher, TestCachePurging]
> :lucene:monitor:test (FAILURE): 171 test(s), 1 failure(s), 1 skipped
>
> >>>>>
>
> I tried replaying that test with the random seed with both `./gradlew check -Ptests.seed=4DDD0C97DB8E50CC:5D664A5C8BA9CD8C ` and `./gradlew test --tests TestCachePurging.testBackgroundPurges -Dtests.seed=4DDD0C97DB8E50CC -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=shi-Tfng`, but both commands passed successfully.
>
> This issue is to investigate why that flaky test failed.
>
>
>
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