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https://issues.apache.org/jira/browse/HBASE-20878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545260#comment-16545260
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Hadoop QA commented on HBASE-20878:
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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} docker {color} | {color:red}419m
52s{color} | {color:red} Docker failed to build yetus/hbase:6f01af0. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HBASE-20878 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12931746/HBASE-20878.branch-2.0.003.patch
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| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/13633/console |
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This message was automatically generated.
> Data loss if merging regions while ServerCrashProcedure executing
> -----------------------------------------------------------------
>
> Key: HBASE-20878
> URL: https://issues.apache.org/jira/browse/HBASE-20878
> Project: HBase
> Issue Type: Sub-task
> Components: amv2
> Affects Versions: 3.0.0, 2.1.0, 2.0.1
> Reporter: Allan Yang
> Assignee: Allan Yang
> Priority: Critical
> Fix For: 3.0.0, 2.0.2, 2.1.1
>
> Attachments: HBASE-20878.branch-2.0.001.patch,
> HBASE-20878.branch-2.0.002.patch, HBASE-20878.branch-2.0.003.patch
>
>
> In MergeTableRegionsProcedure, we close the regions to merge using
> UnassignProcedure. But, if the RS these regions on is crashed, a
> ServerCrashProcedure will execute at the same time. UnassignProcedures will
> be blockd until all logs are split. But since these regions are closed for
> merging, the regions won't open again, the recovered.edit in the region dir
> won't be replay, thus, data will loss.
> I provided a test to repo this case. I seriously doubt Split region procedure
> also has this kind of problem. I will check later
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