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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-381) Improve FS docs
Date Wed, 03 Apr 2013 19:07:19 GMT

    [ https://issues.apache.org/jira/browse/YARN-381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621203#comment-13621203
] 

Hudson commented on YARN-381:
-----------------------------

Integrated in Hadoop-trunk-Commit #3554 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/3554/])
    YARN-381. Improve fair scheduler docs. Contributed by Sandy Ryza. (Revision 1464130)

     Result = SUCCESS
tomwhite : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1464130
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/FairScheduler.apt.vm

                
> Improve FS docs
> ---------------
>
>                 Key: YARN-381
>                 URL: https://issues.apache.org/jira/browse/YARN-381
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Sandy Ryza
>            Priority: Minor
>             Fix For: 2.0.5-beta
>
>         Attachments: YARN-381.patch
>
>
> The MR2 FS docs could use some improvements.
> Configuration:
> - sizebasedweight - what is the "size" here? Total memory usage?
> Pool properties:
> - minResources - what does min amount of aggregate memory mean given that this is not
a reservation?
> - maxResources - is this a hard limit?
> - weight: How is this  ratio configured?  Eg base is 1 and all weights are relative to
that?
> - schedulingMode - what is the default? Is fifo pure fifo, eg waits until all tasks for
the job are finished before launching the next job?
> There's no mention of ACLs, even though they're supported. See the CS docs for comparison.
> Also there are a couple typos worth fixing while we're at it, eg "finish. apps to run"
> Worth keeping in mind that some of these will need to be updated to reflect that resource
calculators are now pluggable.

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