[HBASE-3267] close_region shell command breaks region

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.90.0
• Fix Version/s: 0.90.0
• Component/s: master, regionserver, shell
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Todd Lipcon
• Created: 23/Nov/10 08:49
• Updated: 20/Nov/15 12:43
• Resolved: 29/Nov/10 19:47

Description

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