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From "Luyuan Zhai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KYLIN-1892) Support setting a volatile range for auto merge
Date Tue, 21 Nov 2017 05:47:00 GMT

    [ https://issues.apache.org/jira/browse/KYLIN-1892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16260277#comment-16260277
] 

Luyuan Zhai commented on KYLIN-1892:
------------------------------------

[~yanghaogn] Cool! Glad to know someone has done this!

> Support setting a volatile range for auto merge
> -----------------------------------------------
>
>                 Key: KYLIN-1892
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1892
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Job Engine
>    Affects Versions: v1.5.2
>            Reporter: fengYu
>            Assignee: Yang Hao
>             Fix For: v2.3.0
>
>         Attachments: KYLIN-1892.v3.patch
>
>
> We always has some data need to be amended some days later
> in current kylin, once I set Auto Merge Thresholds, the segment newly build will merge
if reach Thresholds, the next day refresh will refresh merged segemnt, which is unnecessary.
> So I want to add a interval configuration means auto merge will merge segments outside
of the interval. 
> for example, if interval = 2, Auto Merge Thresholds=7, if 07-01 to 07-07 is built, auto
merge will not trigger, when 07-09 built success, auto merge will trigger and merge segments
from 07-01 to 07-07.



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