[jira] [Created] (HBASE-8912) [0.94] AssignmentManager throws IllegalStateException from PENDING_OPEN to OFFLINE

["Enis Soztutar (JIRA)" <ji...@apache.org>]

Enis Soztutar created HBASE-8912:
------------------------------------

             Summary: [0.94] AssignmentManager throws IllegalStateException from PENDING_OPEN to OFFLINE
                 Key: HBASE-8912
                 URL: https://issues.apache.org/jira/browse/HBASE-8912
             Project: HBase
          Issue Type: Bug
            Reporter: Enis Soztutar
             Fix For: 0.94.10


AM throws this exception which subsequently causes the master to abort: 
{code}
java.lang.IllegalStateException: Unexpected state : testRetrying,jjj,1372891751115.9b828792311001062a5ff4b1038fe33b. state=PENDING_OPEN, ts=1372891751912, server=hemera.apache.org,39064,1372891746132 .. Cannot transit it to OFFLINE.
	at org.apache.hadoop.hbase.master.AssignmentManager.setOfflineInZooKeeper(AssignmentManager.java:1879)
	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1688)
	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1424)
	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1399)
	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1394)
	at org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:105)
	at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:175)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:662)
{code}

This exception trace is from the failing test TestMetaReaderEditor which is failing pretty frequently, but looking at the test code, I think this is not a test-only issue, but affects the main code path. 

https://builds.apache.org/job/HBase-0.94/1036/testReport/junit/org.apache.hadoop.hbase.catalog/TestMetaReaderEditor/testRetrying/


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