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https://issues.apache.org/jira/browse/HBASE-3267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12934925#action_12934925
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Jonathan Gray commented on HBASE-3267:
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The master doesn't expect a region to be properly closed out on an RS w/o being
the one to tell it to do so.
Let me dig in to the code and see what the easiest solution would be.
@Todd... I had plans to start working on new features for 0.92, stop finding
bugs! ;)
> close_region shell command breaks region
> ----------------------------------------
>
> Key: HBASE-3267
> URL: https://issues.apache.org/jira/browse/HBASE-3267
> Project: HBase
> Issue Type: Bug
> Components: master, regionserver, shell
> Affects Versions: 0.90.0
> Reporter: Todd Lipcon
> Priority: Critical
>
> It used to be that you could use the close_region command from the shell to
> close a region on one server and have the master reassign it elsewhere. Now
> if you close a region, you get the following errors in the master log:
> 2010-11-23 00:46:34,090 WARN
> org.apache.hadoop.hbase.master.AssignmentManager: Received CLOSING for region
> ffaa7999e909dbd6544688cc8ab303bd from server
> haus01.sf.cloudera.com,12020,1290501789693 but region was in the state null
> and not in expected PENDI
> 2010-11-23 00:46:34,530 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher:
> master:60000-0x12c537d84e10062 Received ZooKeeper Event,
> type=NodeDataChanged, state=SyncConnected,
> path=/hbase/unassigned/ffaa7999e909dbd6544688cc8ab303bd
> 2010-11-23 00:46:34,531 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
> master:60000-0x12c537d84e10062 Retrieved 128 byte(s) of data from znode
> /hbase/unassigned/ffaa7999e909dbd6544688cc8ab303bd and set watcher;
> region=usertable,user1951957302,1290501969
> 2010-11-23 00:46:34,531 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Handling
> transition=RS_ZK_REGION_CLOSED,
> server=haus01.sf.cloudera.com,12020,1290501789693,
> region=ffaa7999e909dbd6544688cc8ab303bd
> 2010-11-23 00:46:34,531 WARN
> org.apache.hadoop.hbase.master.AssignmentManager: Received CLOSED for region
> ffaa7999e909dbd6544688cc8ab303bd from server
> haus01.sf.cloudera.com,12020,1290501789693 but region was in the state null
> and not in expected PENDIN
> and the region just gets stuck closed
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