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https://issues.apache.org/jira/browse/HBASE-26327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17434374#comment-17434374
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Hudson commented on HBASE-26327:
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Results for branch master
[build #423 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/423/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/423/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/423/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(x) {color:red}-1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/423/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> Replicas cohosted on a rack shouldn't keep triggering Balancer
> --------------------------------------------------------------
>
> Key: HBASE-26327
> URL: https://issues.apache.org/jira/browse/HBASE-26327
> Project: HBase
> Issue Type: Sub-task
> Components: Balancer
> Reporter: Clara Xiong
> Assignee: Clara Xiong
> Priority: Major
>
> Currently, Balancer has a shortcut check for cohosted replicas of the same
> region/host/rack and will keep triggering balancer if it is non-zero.
> With the trending of kube and cloud solution for HBase, operators don't have
> full control of the topology or are not even aware of the topology. There are
> cases that it is not possible to satisfy or requires sacrificing other
> constraints such as region count balancing on RS. We want to keep there per
> RS/host check for availability of regions, especially for meta region. We
> haven't heard problem with rack so far. The cost functions will still be
> considered during balancing.
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