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https://issues.apache.org/jira/browse/SOLR-5815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920318#comment-13920318
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Hoss Man commented on SOLR-5815:
--------------------------------
The failing assert comes from checking the "maxDoc" of an index after adding a
doc and doing a core reload.
since the failure only happens on the policeman jenkins instance, my best guess
is it's a timing problem resulting in a race condition between threads -- but
based on my understanding of the reload code, and the thread IDs referenced in
the existing log messages, i don't see how that's possible.
In any case: i'm going to commit some additional logging to the test to try and
track down exactly what core/searcher the assert is failing against just to
prove to myself that's not the problem
> Non-reproducible failures of TestNonNRTOpen.testReaderIsNotNRT
> --------------------------------------------------------------
>
> Key: SOLR-5815
> URL: https://issues.apache.org/jira/browse/SOLR-5815
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
>
> SOLR-4909 added TestNonNRTOpen on Sep 10, 2013 - since then the policeman
> jenkins server has reported {{TestNonNRTOpen.testReaderIsNotNRT}} failing 33
> times by my count -- but i've never been able to reproduce, nor have I seen
> any similar failures from apache jenkins.
> The failures are all virtually identical, and seem to happen just as likely
> on 4x/trunk, mac/linux/windows, 1.6/1.7/1.8
> Recent Example...
> {noformat}
> [junit4] 2> NOTE: reproduce with: ant test -Dtestcase=TestNonNRTOpen
> -Dtests.method=testReaderIsNotNRT -Dtests.seed=8BF5F44429C5ABCA
> -Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=nl
> -Dtests.timezone=America/Whitehorse -Dtests.file.encoding=ISO-8859-1
> [junit4] FAILURE 0.23s J0 | TestNonNRTOpen.testReaderIsNotNRT <<<
> [junit4] > Throwable #1: java.lang.AssertionError: expected:<3> but
> was:<2>
> [junit4] > at
> __randomizedtesting.SeedInfo.seed([8BF5F44429C5ABCA:3E7395C39604193E]:0)
> [junit4] > at
> org.apache.solr.core.TestNonNRTOpen.assertNotNRT(TestNonNRTOpen.java:133)
> [junit4] > at
> org.apache.solr.core.TestNonNRTOpen.testReaderIsNotNRT(TestNonNRTOpen.java:94)
> [junit4] > at java.lang.Thread.run(Thread.java:744)
> {noformat}
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