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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8585) AssignmentManager should handle RejectedExecutionException
Date Tue, 21 May 2013 17:03:20 GMT
Ted Yu created HBASE-8585:
-----------------------------

             Summary: AssignmentManager should handle RejectedExecutionException
                 Key: HBASE-8585
                 URL: https://issues.apache.org/jira/browse/HBASE-8585
             Project: HBase
          Issue Type: Bug
            Reporter: Ted Yu


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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