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https://issues.apache.org/jira/browse/KYLIN-4075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884809#comment-16884809
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Xiaoxiang Yu commented on KYLIN-4075:
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Hi [~imperio] , in Kylin we use Scheduler to load fetch task which need to be
executed in fix rate, that is to say new step/task need wait a few seconds to
be scheduled. You may see source code of DefaultScheduler/
FetcherRunner for more detail.
> Build duration does not match mapreduce duration
> ------------------------------------------------
>
> Key: KYLIN-4075
> URL: https://issues.apache.org/jira/browse/KYLIN-4075
> Project: Kylin
> Issue Type: Bug
> Affects Versions: v2.6.2
> Reporter: wxmimperio
> Priority: Major
> Attachments: image-2019-07-05-19-33-06-248.png,
> image-2019-07-05-19-33-35-547.png
>
>
> !image-2019-07-05-19-33-06-248.png!
> !image-2019-07-05-19-33-35-547.png!
> More time on kylin than mapreduce real execution time.
>
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