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https://issues.apache.org/jira/browse/HBASE-13988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14615944#comment-14615944
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stack commented on HBASE-13988:
-------------------------------
No other comments. Just a suggestion. I like the way the patch makes use of the
existing exception handling mechanism.
> Add exception handler for lease thread
> --------------------------------------
>
> Key: HBASE-13988
> URL: https://issues.apache.org/jira/browse/HBASE-13988
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
> Fix For: 2.0.0, 1.0.2, 1.1.2, 0.98.15
>
> Attachments: HBASE-13988-v001.diff
>
>
> In a prod cluster, a region server exited for some important
> threads were not alive. After excluding other threads from the log, we
> doubted the lease thread was the root.
> So we need to add an exception handler to the lease thread to debug why it
> exited in future.
>
> {quote}
> 2015-06-29,12:46:09,222 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: STOPPED: One or more
> threads are no longer alive -- stop
> 2015-06-29,12:46:09,223 INFO org.apache.hadoop.ipc.HBaseServer: Stopping
> server on 21600
> ...
> 2015-06-29,12:46:09,330 INFO org.apache.hadoop.hbase.regionserver.LogRoller:
> LogRoller exiting.
> 2015-06-29,12:46:09,330 INFO
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Thread-37 exiting
> 2015-06-29,12:46:09,330 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer$CompactionChecker:
> regionserver21600.compactionChecker exiting
> 2015-06-29,12:46:12,403 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer$PeriodicMemstoreFlusher:
> regionserver21600.periodicFlusher exiting
> {quote}
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