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Posted to issues@hbase.apache.org by "Jonathan Gray (JIRA)" <ji...@apache.org> on 2010/11/29 21:27:13 UTC
[jira] Commented: (HBASE-3278) AssertionError in LoadBalancer
[ https://issues.apache.org/jira/browse/HBASE-3278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12964925#action_12964925 ]
Jonathan Gray commented on HBASE-3278:
--------------------------------------
+1. You have some HBASE-3243 left in the patch but both good for commit :)
I looked at this and couldn't figure how it happened. Good on you for debug, stack.
> AssertionError in LoadBalancer
> ------------------------------
>
> Key: HBASE-3278
> URL: https://issues.apache.org/jira/browse/HBASE-3278
> Project: HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Fix For: 0.90.0
>
> Attachments: lb.txt
>
>
> While running PE with low splitting configuration, I got this:
> {noformat}
> 2010-11-24 23:23:24,508 INFO org.apache.hadoop.hbase.master.ServerManager: Received REGION_SPLIT: TestTable,0002485653,...
> 2010-11-24 23:23:26,129 INFO org.apache.hadoop.hbase.master.ServerManager: Received REGION_SPLIT: TestTable,0004309306,...
> 2010-11-24 23:23:26,132 INFO org.apache.hadoop.hbase.master.ServerManager: Received REGION_SPLIT: TestTable,0001281491...
> 2010-11-24 23:23:26,162 FATAL org.apache.hadoop.hbase.master.HMaster$1: sv2borg180:61000-BalancerChoreerror
> java.lang.AssertionError
> at org.apache.hadoop.hbase.master.LoadBalancer.balanceCluster(LoadBalancer.java:296)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:679)
> at org.apache.hadoop.hbase.master.HMaster$1.chore(HMaster.java:578)
> at org.apache.hadoop.hbase.Chore.run(Chore.java:66)
> 2010-11-24 23:23:26,163 INFO org.apache.hadoop.hbase.master.HMaster$1: sv2borg180:61000-BalancerChore exiting
> 2010-11-24 23:23:26,236 INFO org.apache.hadoop.hbase.master.ServerManager: Received REGION_SPLIT: TestTable,0000921369,...
> {noformat}
> The thread dies but the master survives. There's nothing specific before that in the log, just regions splitting.
> The line in LoadBalancer is:
> {code}
> assert(regionidx == regionsToMove.size());
> {code}
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