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https://issues.apache.org/jira/browse/HBASE-10761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815930#comment-16815930
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HBase QA commented on HBASE-10761:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 5s{color}
| {color:red} HBASE-10761 does not apply to master. Rebase required? Wrong
Branch? See
https://yetus.apache.org/documentation/in-progress/precommit-patchnames for
help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HBASE-10761 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12634893/HBASE_10761_v2.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/70/console |
| Powered by | Apache Yetus 0.9.0 http://yetus.apache.org |
This message was automatically generated.
> StochasticLoadBalancer still uses SimpleLoadBalancer's needBalance logic
> ------------------------------------------------------------------------
>
> Key: HBASE-10761
> URL: https://issues.apache.org/jira/browse/HBASE-10761
> Project: HBase
> Issue Type: Bug
> Components: Balancer
> Affects Versions: 0.98.0
> Reporter: Victor Xu
> Priority: Major
> Attachments: HBASE_10761.patch, HBASE_10761_v2.patch
>
>
> StochasticLoadBalancer has become the default balancer since 0.98.0. But its
> balanceCluster method still uses the BaseLoadBalancer.needBalance() which is
> originally designed for SimpleLoadBalancer. It's all based on the number of
> regions on the regionservers.
> This can cause such a problem: when the cluster has some Hot Spot Region, the
> balance process may not be triggered because the numbers of regions on the
> RegionServers are averaged.
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