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https://issues.apache.org/jira/browse/YARN-1612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13946646#comment-13946646
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Chen He commented on YARN-1612:
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Hi [~sandyr]
Would you mind clarify this JIRA a little bit for me? I took a look of the
FairScheduler source code. Here are my 2 questions:
1) Since the delay interval will benefits the data locality but also affects
map tasks assignment if it is too long, to enable delay scheduling by default,
we need a relative reasonable delay interval;
2) This relative reasonable delay interval can change depending on the size of
cluster;
> Change Fair Scheduler to not disable delay scheduling by default
> ----------------------------------------------------------------
>
> Key: YARN-1612
> URL: https://issues.apache.org/jira/browse/YARN-1612
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler
> Reporter: Sandy Ryza
> Assignee: Chen He
>
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