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Ted Yu edited comment on HBASE-4739 at 11/21/11 4:09 AM: --------------------------------------------------------- @J-D In 0.92 version, uses HBASE-4739_Trunk_V2 in timeout monitor for sending a CLOSING rpc.(I try to modify this patch) In trunk, uses patch "4739_trialV3". Hbase is used by thousands of people. If this problem occurred once, it may occur more. So I think we need to solve this issue. What do you say J-D? I will do some more detailed testing about these patches and give my test cases. was (Author: sunnygao): @J-D In 0.92 version, uses HBASE-4739_Trunk_V2 in timeout monitor for sending a CLOSING rpc.(I try to modify this patch) In trunk, uses patch "4739_trialV3". Hbase thousands of people in the use of, If we once, may appear more. So I think we need slove this isse. What do you say J-D? I will do some more detailed testing about these patches and give my test cases. > Master dying while going to close a region can leave it in transition forever > ----------------------------------------------------------------------------- > > Key: HBASE-4739 > URL: https://issues.apache.org/jira/browse/HBASE-4739 > Project: HBase > Issue Type: Bug > Affects Versions: 0.90.4 > Reporter: Jean-Daniel Cryans > Assignee: gaojinchao > Priority: Minor > Fix For: 0.92.0, 0.94.0, 0.90.5 > > Attachments: 4739_trial2.patch, 4739_trialV3.patch, > HBASE-4739_Trunk.patch, HBASE-4739_Trunk_V2.patch, HBASE-4739_trail5.patch, > HBASE-4739_trial.patch > > > I saw this in the aftermath of HBASE-4729 on a 0.92 refreshed yesterday, when > the master died it had just created the RIT znode for a region but didn't > tell the RS to close it yet. > When the master restarted it saw the znode and started printing this: > {quote} > 2011-11-03 00:02:49,130 INFO > org.apache.hadoop.hbase.master.AssignmentManager: Regions in transition timed > out: TestTable,0007560564,1320253568406.f76899564cabe7e9857c3aeb526ec9dc. > state=CLOSING, ts=1320253605285, server=sv4r11s38,62003,1320195046948 > 2011-11-03 00:02:49,130 INFO > org.apache.hadoop.hbase.master.AssignmentManager: Region has been CLOSING for > too long, this should eventually complete or the server will expire, doing > nothing > {quote} > It's never going to happen, and it's blocking balancing. > I'm marking this as minor since I believe this situation is pretty rare > unless you hit other bugs while trying out stuff to root bugs out. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira