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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-381) Improve FS docs
Date Thu, 21 Mar 2013 20:51:16 GMT

     [ https://issues.apache.org/jira/browse/YARN-381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Sandy Ryza updated YARN-381:

    Component/s: documentation
> 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
>         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
> - 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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