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https://issues.apache.org/jira/browse/HADOOP-13375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang updated HADOOP-13375:
---------------------------------
Attachment: HADOOP-13375.004.patch
Hello [~liuml07]
Thanks for the comments. Well I can't say that the case in your concern won't
happen, it may fail that way in slightly chance. So I modified the
{{delayIfNecessary}} method a little bit to let it be able to {{pause}} and
wait for notification (using a latch). In this way we will not need to sleep
anymore and just pause the thread, do verify, resume the thread, then verify
again.
Please help to review v4 patch, and let me know if it looks good or not. Thanks
a lot.
> o.a.h.security.TestGroupsCaching.testBackgroundRefreshCounters seems flaky
> --------------------------------------------------------------------------
>
> Key: HADOOP-13375
> URL: https://issues.apache.org/jira/browse/HADOOP-13375
> Project: Hadoop Common
> Issue Type: Bug
> Components: security, test
> Affects Versions: 2.8.0
> Reporter: Mingliang Liu
> Assignee: Weiwei Yang
> Attachments: HADOOP-13375.001.patch, HADOOP-13375.002.patch,
> HADOOP-13375.003.patch, HADOOP-13375.004.patch
>
>
> h5. Error Message
> bq. expected:<1> but was:<0>
> h5. Stacktrace
> {quote}
> java.lang.AssertionError: expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at
> org.apache.hadoop.security.TestGroupsCaching.testBackgroundRefreshCounters(TestGroupsCaching.java:638)
> {quote}
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