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https://issues.apache.org/jira/browse/HBASE-10726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13931441#comment-13931441
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Andrew Purtell commented on HBASE-10726:
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Patch lgtm, +1 for trunk and 0.98
> Fix java.lang.ArrayIndexOutOfBoundsException in
> StochasticLoadBalancer$LocalityBasedCandidateGenerator
> ------------------------------------------------------------------------------------------------------
>
> Key: HBASE-10726
> URL: https://issues.apache.org/jira/browse/HBASE-10726
> Project: HBase
> Issue Type: Bug
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 0.96.2, 0.98.1, 0.99.0, hbase-10070
>
> Attachments: hbase-10726_v1.patch
>
>
> Recent fix in HBASE-10632 to
> StochasticLoadBalancer$LocalityBasedCandidateGenerator revealed another
> issue:
> {code}
> java.lang.ArrayIndexOutOfBoundsException: -1
> at
> org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer$CandidateGenerator.pickRandomRegion(StochasticLoadBalancer.java:405)
> at
> org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer$LocalityBasedCandidateGenerator.generate(StochasticLoadBalancer.java:571)
> at
> org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:235)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1465)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1505)
> {code}
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