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https://issues.apache.org/jira/browse/KYLIN-5319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17643232#comment-17643232
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ASF subversion and git services commented on KYLIN-5319:
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Commit 19232aba8f01b42360199c481ed08856f4e65522 in kylin's branch
refs/heads/kylin5 from Jiale He
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=19232aba8f ]
KYLIN-5319 Earlier Init Segment LayoutInfo In FilePruner
> Occasional failure to query the real-time model, reporting NPE
> --------------------------------------------------------------
>
> Key: KYLIN-5319
> URL: https://issues.apache.org/jira/browse/KYLIN-5319
> Project: Kylin
> Issue Type: Bug
> Components: Query Engine
> Reporter: Jiale He
> Priority: Major
> Fix For: 5.0-alpha
>
> Attachments: KYLIN-5319 查询元数据变更导致NPE.pdf
>
>
> 这个问题是因为
> Segment Merge 完毕后，元数据更新结束的节点大量并发查询，
> FilePruner中DataFlow变量的Segment元数据懒加载导致的。
> 因为懒加载导致dataflow中元数据不一致。
>
> 详细的RC分析和Fix Design 见{color:#de350b}*附件*{color}
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