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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KYLIN-3635) Percentile calculation on Spark engine is wrong
Date Thu, 18 Oct 2018 14:20:00 GMT

    [ https://issues.apache.org/jira/browse/KYLIN-3635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655292#comment-16655292
] 

ASF subversion and git services commented on KYLIN-3635:
--------------------------------------------------------

Commit 5a6ff1d54f004e2e8c1bcaa09e64bebc036df8ef in kylin's branch refs/heads/master from shaofengshi
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=5a6ff1d ]

KYLIN-3635 Percentile calculation on Spark engine is wrong


> Percentile calculation on Spark engine is wrong
> -----------------------------------------------
>
>                 Key: KYLIN-3635
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3635
>             Project: Kylin
>          Issue Type: Bug
>    Affects Versions: v2.3.0, v2.3.1, v2.4.0, v2.3.2, v2.4.1, v2.5.0
>            Reporter: Shaofeng SHI
>            Priority: Major
>
> As titled; Received reporting that percentile result is wrong when using Spark engine.
Checked the code and found the object was reused and not reset, the problem won't happen
on normal MR as it would be serialized before next call, but would be a problem on Spark,
as the object was cached in-memory and be serialized later.



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