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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19803) False positive for the HBASE-Find-Flaky-Tests job
Date Wed, 17 Jan 2018 12:55:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16328707#comment-16328707
] 

Duo Zhang commented on HBASE-19803:
-----------------------------------

I've registered a SecurityManager in HConstants. Need some hack to let the surefire framework
can still call System.exit.

First is that surefire will use System.exit to exit even for a successful test.
Second is that ForkedBooter.kill will use System.exit, I believe it is used to kill timeout
test.

I've already hack for these two cases and started the third try.

> False positive for the HBASE-Find-Flaky-Tests job
> -------------------------------------------------
>
>                 Key: HBASE-19803
>                 URL: https://issues.apache.org/jira/browse/HBASE-19803
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Duo Zhang
>            Priority: Major
>
> It reports two hangs for TestAsyncTableGetMultiThreaded, but I checked the surefire output
> https://builds.apache.org/job/HBASE-Flaky-Tests/24830/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestAsyncTableGetMultiThreaded-output.txt
> This one was likely to be killed in the middle of the run within 20 seconds.
> https://builds.apache.org/job/HBASE-Flaky-Tests/24852/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestAsyncTableGetMultiThreaded-output.txt
> This one was also killed within about 1 minutes.
> The test is declared as LargeTests so the time limit should be 10 minutes. It seems that
the jvm may crash during the mvn test run and then we will kill all the running tests and
then we may mark some of them as hang which leads to the false positive.



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