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https://issues.apache.org/jira/browse/HBASE-22236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821918#comment-16821918
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Duo Zhang commented on HBASE-22236:
-----------------------------------
https://builds.apache.org/job/HBase-Flaky-Tests/job/master/3028/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestAsyncTableGetMultiThreaded-output.txt/*view*/
{noformat}
2019-04-18 16:56:25,084 INFO [Time-limited test]
client.TestAsyncTableGetMultiThreaded(211): ====== Read test finished, shutdown
thread pool ======
2019-04-18 16:56:25,085 INFO [Time-limited test]
client.TestAsyncTableGetMultiThreaded(215): ====== Waiting for 20 threads to
finish, remaining 20 ======
2019-04-18 16:56:25,788 INFO [Time-limited test]
client.TestAsyncTableGetMultiThreaded(215): ====== Waiting for 20 threads to
finish, remaining 19 ======
{noformat}
Then there is no progress. So the problem is that the read thread does not
return.
Let me dig more.
> TestAsyncTableGetMultiThreaded sometimes timed out
> --------------------------------------------------
>
> Key: HBASE-22236
> URL: https://issues.apache.org/jira/browse/HBASE-22236
> Project: HBase
> Issue Type: Bug
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Attachments: HBASE-22236.patch
>
>
> https://builds.apache.org/job/HBase-Flaky-Tests/job/master/2992/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestAsyncTableGetMultiThreaded-output.txt/*view*/
> After this line
> {noformat}
> 2019-04-14 04:44:41,736 INFO [PEWorker-12]
> procedure2.ProcedureExecutor(1410): Finished pid=117, state=SUCCESS,
> hasLock=false; TransitRegionStateProcedure table=hbase:meta,
> region=1588230740, REOPEN/MOVE in 2.0690sec
> {noformat}
> Seems we just do nothing until the test is timed out.
> And there is no main thread in the output hanging thread, which is a bit
> strange, although all the get threads are hanging there.
> Let me add some logs for better debugging first.
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