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https://issues.apache.org/jira/browse/MAPREDUCE-4316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13289528#comment-13289528
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Harsh J commented on MAPREDUCE-4316:
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I'd lowered the min-alloc via MAPREDUCE-3812. But had left the MR defaults for
job allocs the same as they were. How does that min-alloc value lower the
performance though Arun?
What ought one raise - request size or rely on min-alloc? I was under the
impression that min-allocs should be low to grant lower requests per container,
but large requests (from MR App) should anyway do fine as they did before.
Which one ought users rely on?
> Improve default config values for YARN
> --------------------------------------
>
> Key: MAPREDUCE-4316
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4316
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha
> Reporter: Arun C Murthy
>
> Currently some of our configs are way off e.g. min-alloc is 128M while
> max-alloc is 10240.
> This leads to poor out-of-box performance as noticed by some users:
> http://s.apache.org/avd
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