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From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SOLR-12733) SolrMetricReporterTest failure
Date Thu, 06 Sep 2018 01:52:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-12733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erick Erickson resolved SOLR-12733.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 7.5
                   master (8.0)

Fixed DateMathParserTest too.

no other tests failed, but we need to keep an eye out for them.

Thanks David!

> SolrMetricReporterTest failure
> ------------------------------
>
>                 Key: SOLR-12733
>                 URL: https://issues.apache.org/jira/browse/SOLR-12733
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: logging
>            Reporter: Erick Erickson
>            Assignee: Erick Erickson
>            Priority: Major
>             Fix For: master (8.0), 7.5
>
>         Attachments: SOLR-12733.patch
>
>
> Since the change to async logger, this test fails 100% of the time for me locally. [~steve_rowe]
confirmed that it fails for him too so it's not something weird in my environment.
> Why there are no reports from Jenkins of this failure is a mystery.
> The _test_ succeeds, but there is a thread leak and the stack trace points to "lmax.disruptor"
which is certainly a part of the async logging.
> And why, if this is something generic, it doesn't fail many many tests is another mystery
so I suspect it's something specific to the test, perhaps having to do with mocking the metric
reporter, but that's a wild shot in the dark.
> My working hypothesis is that "something isn't being closed/shutdown correctly", but
that's...a little vague.
> {code}
> Sep 04, 2018 9:38:00 AM com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks
> WARNING: Will linger awaiting termination of 1 leaked thread(s).
> Sep 04, 2018 9:38:20 AM com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks
> SEVERE: 1 thread leaked from SUITE scope at org.apache.solr.metrics.SolrMetricReporterTest:

>    1) Thread[id=14, name=Log4j2-TF-1-AsyncLoggerConfig--1, state=TIMED_WAITING, group=TGRP-SolrMetricReporterTest]
>         at sun.misc.Unsafe.park(Native Method)
>         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
>         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
>         at com.lmax.disruptor.TimeoutBlockingWaitStrategy.waitFor(TimeoutBlockingWaitStrategy.java:38)
>         at com.lmax.disruptor.ProcessingSequenceBarrier.waitFor(ProcessingSequenceBarrier.java:56)
>         at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:128)
>         at java.lang.Thread.run(Thread.java:748)
> {code}



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