Stuck in regionsInTransition because rebalance came in at same time as a split
------------------------------------------------------------------------------
Key: HBASE-3039
URL: https://issues.apache.org/jira/browse/HBASE-3039
Project: HBase
Issue Type: Bug
Components: master
Reporter: stack
Fix For: 0.90.0
Saw this doing cluster tests:
{code}
2010-09-25 21:31:48,212 DEBUG org.apache.hadoop.hbase.master.HMaster: Not
running balancer because regions in transition:
{73781e505e452221c9cd0e03585eb5d1=usertable,user800184056,
128...
{code}
Here's the problem:
{code}
2010-09-25 08:16:48,186 INFO org.apache.hadoop.hbase.master.HMaster: balance
hri=usertable,user800184056,1285397376525.73781e505e452221c9cd0e03585eb5d1.,
src=su184,60020,
1285371621579, dest=sv2borg189,60020,1285371621577
2010-09-25 08:16:48,186 DEBUG org.apache.hadoop.hbase.master.AssignmentManager:
Starting unassignment of region usertable,user800184056,1285397376525.
73781e505e452221c9cd0e03585eb5d1. (offlining)
2010-09-25 08:16:52,656 INFO org.apache.hadoop.hbase.master.ServerManager:
Received REGION_SPLIT:
usertable,user800184056,1285397376525.73781e505e452221c9cd0e03585eb5d1.:
Daughters;
usertable,user800184056,1285402609029.c05825561e7ea3cc6507c70bfb21541a.,
usertable,user804024623,1285402609029.28f64903a7875bdafc1e7ee344b225b0.
2010-09-25 08:17:11,414 INFO org.apache.hadoop.hbase.master.AssignmentManager:
Regions in transition timed out: usertable,user800184056,1285397376525.
73781e505e452221c9cd0e03585eb5d1. state=PENDING_CLOSE, ts=1285402608186
{code}
....just as we were doing a balance, the region split.
Over on RS, I see the split starting up and then in comes the balance 'close'
message. By the time the close handler runs on regionserver the split is well
underway and close handler actually doesn't find an online region to split.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
