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https://issues.apache.org/jira/browse/HBASE-19986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16361531#comment-16361531
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Appy commented on HBASE-19986:
------------------------------

Let's use this instead - 
https://github.com/apache/hadoop/blob/d1c6accb6f87b08975175580e15f1ff1fe29ab04/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/test/TimedOutTestsListener.java
 ?
It also seems to be doing some deadlock detection...looks nice!
Let's extend it in our hbase-common instead of copying it :)

> If HBaseTestClassRule timesout a test, thread dump.
> ---------------------------------------------------
>
>                 Key: HBASE-19986
>                 URL: https://issues.apache.org/jira/browse/HBASE-19986
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>            Priority: Major
>         Attachments: HBASE-19986.branch-2.001.patch
>
>
> We set look for stuck thread in our timeout rule but it is super conservative 
> in what it prints.. it looks for a RUNNABLE thread and prints first found 
> ONLY. Pretty useless for us.  If a test timesout, often the printing has 
> stopped in the stderr/stdout.
> I'm trying to debug TestAsyncRegionAdminApi. It says test timed out after 10 
> minutes but we've stopped printing to the logs and here is what junit prints:
> -------------------------------------------------------------------------------
> Test set: org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi
> -------------------------------------------------------------------------------
> Tests run: 25, Failures: 0, Errors: 2, Skipped: 2, Time elapsed: 572.508 s 
> <<< FAILURE! - in org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi
> org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi  Time elapsed: 14.642 
> s  <<< ERROR!
> org.junit.runners.model.TestTimedOutException: test timed out after 600 
> seconds
>   at 
> org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi.testMergeRegions(TestAsyncRegionAdminApi.java:363)
> org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi  Time elapsed: 14.642 
> s  <<< ERROR!
> java.lang.Exception: Appears to be stuck in thread Socket Reader #1 for port 
> 35917



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