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https://issues.apache.org/jira/browse/HBASE-8585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated HBASE-8585:
--------------------------

    Attachment: 8585-v3.txt

Patch v3 addresses Ram's comment
                
> AssignmentManager should handle RejectedExecutionException
> ----------------------------------------------------------
>
>                 Key: HBASE-8585
>                 URL: https://issues.apache.org/jira/browse/HBASE-8585
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 8585-v1.txt, 8585-v3.txt
>
>
> In test output, I noticed the following:
> {code}
> 2013-05-21 03:39:37,015 DEBUG [Thread-1446-EventThread] 
> zookeeper.ZooKeeperWatcher(307): master:35255-0x13ec52b4ce30000 Received 
> ZooKeeper Event, type=NodeDataChanged, state=SyncConnected, 
> path=/hbase/region-in-transition/8b6ce00aafd483a6ed7a76425009ebf8
> 2013-05-21 03:39:37,015 ERROR [Thread-1446-EventThread] 
> zookeeper.ClientCnxn$EventThread(521): Error while calling watcher
> java.util.concurrent.RejectedExecutionException
>         at 
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1768)
>         at 
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:767)
>         at 
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:658)
>         at 
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:78)
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.zkEventWorkersSubmit(AssignmentManager.java:1136)
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.handleAssignmentEvent(AssignmentManager.java:1306)
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.nodeDataChanged(AssignmentManager.java:1095)
>         at 
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:338)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> {code}
> By default, ThreadPoolExecutor.AbortPolicy is used for zkEventWorkers, 
> leading to the above exception.
> We should examine the calls to zkEventWorkersSubmit() and devise proper 
> handling for RejectedExecutionException.

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