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https://issues.apache.org/jira/browse/HBASE-21102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16609555#comment-16609555
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Hudson commented on HBASE-21102:
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Results for branch branch-2
[build #1229 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1229/]:
(x) *{color:red}-1 overall{color}*
----
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1229//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1229//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1229//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> ServerCrashProcedure should select target server where no other replicas
> exist for the current region
> -----------------------------------------------------------------------------------------------------
>
> Key: HBASE-21102
> URL: https://issues.apache.org/jira/browse/HBASE-21102
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 3.0.0, 2.2.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Major
> Attachments: HBASE-21102_1.patch, HBASE-21102_2.patch,
> HBASE-21102_3.patch, HBASE-21102_4.patch, HBASE-21102_initial.patch
>
>
> Currently when a server with region replica crashes, when the target server
> is created for the replica region assignment there is no guarentee that a
> server is selected where there is no other replica for the current region
> getting assigned. It so happens that currently we do an assignment randomly
> and later the LB comes and identifies these cases and again does MOVE for
> such regions. It will be better if we can identify target servers at least
> minimally ensuring that replicas are not colocated.
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