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https://issues.apache.org/jira/browse/HBASE-21395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16675398#comment-16675398
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Hudson commented on HBASE-21395:
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Results for branch branch-2.0
[build #1060 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/1060/]:
(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://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/1060//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-2.0/1060//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-2.0/1060//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> Abort split/merge procedure if there is a table procedure of the same table
> going on
> ------------------------------------------------------------------------------------
>
> Key: HBASE-21395
> URL: https://issues.apache.org/jira/browse/HBASE-21395
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.1.0, 2.0.2
> Reporter: Allan Yang
> Assignee: Allan Yang
> Priority: Major
> Fix For: 2.0.3, 2.1.2
>
> Attachments: HBASE-21395.branch-2.0.001.patch,
> HBASE-21395.branch-2.0.002.patch, HBASE-21395.branch-2.0.003.patch,
> HBASE-21395.branch-2.0.004.patch
>
>
> In my ITBLL, I often see that if split/merge procedure and table
> procedure(like ModifyTableProcedure) happen at the same time, and since there
> some race conditions between these two kind of procedures, causing some
> serious problems. e.g. the split/merged parent is bought on line by the table
> procedure or the split merged region making the whole table procedure
> rollback.
> Talked with [~Apache9] offline today, this kind of problem was solved in
> branch-2+ since There is a fence that only one RTSP can agianst a single
> region at the same time.
> To keep out of the mess in branch-2.0 and branch-2.1, I added a simple safe
> fence in the split/merge procedure: If there is a table procedure going on
> against the same table, then abort the split/merge procedure. Aborting the
> split/merge procedure at the beginning of the execution is no big deal,
> compared with the mess it will cause...
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