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https://issues.apache.org/jira/browse/KYLIN-968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14726716#comment-14726716
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ZhouQianhao commented on KYLIN-968:
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[~sunyerui] can you please also provide a patch for 0.8 branch?
> CubeSegment.lastBuildJobID is null in new instance but used for rowkey_stats
> path
> ---------------------------------------------------------------------------------
>
> Key: KYLIN-968
> URL: https://issues.apache.org/jira/browse/KYLIN-968
> Project: Kylin
> Issue Type: Bug
> Components: Job Engine
> Affects Versions: v0.7.2
> Reporter: Yerui Sun
> Assignee: ZhouQianhao
> Attachments: KYLIN-968-0.7-staging.patch
>
>
> CubeSegment.lastBuildJobID is used to record the id of job which building
> this segment last time.
> When build or fresh a cube and append a new segment, the lastBuildingJobID
> remains as null until the segment build done and info updated. But in the
> segment building flow, lastBuildingJobID has been used for concat
> rowkey_stats path, in CubingJobBuilder.getRowkeyDistributionOutputPath,
> result in rowkey_stats path is like '/../kylin-null/../rowkey_stats', without
> job id in path.
> If more than one segments were building concurrently, the rowkey_stats path
> will be conflicts and result in wrong split keys for tables in HBase.
> Did anybody found this issue before? If not yet and we agreed with the
> analysis above, I'll apply a patch later.
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