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https://issues.apache.org/jira/browse/HBASE-15515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15211245#comment-15211245
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Hudson commented on HBASE-15515:
--------------------------------
FAILURE: Integrated in HBase-1.3 #623 (See
[https://builds.apache.org/job/HBase-1.3/623/])
HBASE-15515 Improve LocalityBasedCandidateGenerator in Balancer (tedyu: rev
fea8fd6ab78c2b64a8908ca912fafb5652af64f2)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/RegionLocationFinder.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
> Improve LocalityBasedCandidateGenerator in Balancer
> ---------------------------------------------------
>
> Key: HBASE-15515
> URL: https://issues.apache.org/jira/browse/HBASE-15515
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 1.3.0
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Minor
> Fix For: 2.0.0, 1.3.0, 1.4.0
>
> Attachments: HBASE-15515-v1.patch, HBASE-15515.patch
>
>
> There are some problems which need to fix.
> 1. LocalityBasedCandidateGenerator.getLowestLocalityRegionOnServer should
> skip empty region.
> 2. When use LocalityBasedCandidateGenerator to generate Cluster.Action, it
> should add random operation instead of pickLowestLocalityServer(cluster).
> Because the search function may stuck here if it always generate the same
> Cluster.Action.
> 3. getLeastLoadedTopServerForRegion should get least loaded server which have
> better locality than current server.
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