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https://issues.apache.org/jira/browse/HBASE-19803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16329593#comment-16329593
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Appy commented on HBASE-19803:
------------------------------

I was thinking of going the way where we would replace all System.exit(X) calls 
with a util function which would additionally dump stack trace at LOG.debug 
(testing level) before calling System.exit itself.

Adding SecurityManager globally for everything seems like a strong and major 
change to jvm environment (even if just for tests).

 

> 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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