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From "Yoram Arnon (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-3653) Improvements to CapacityScheduler doc
Date Tue, 10 Jan 2012 20:21:41 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Yoram Arnon resolved MAPREDUCE-3653.

    Resolution: Invalid

cloning an issue did not have the intended results.
I'll create a new issue.
> Improvements to CapacityScheduler doc
> -------------------------------------
>                 Key: MAPREDUCE-3653
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3653
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Yoram Arnon
>            Assignee: Thomas Graves
>             Fix For: 0.23.1
> I noticed the following issues with the capacity scheduler doc: ./hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
> - In overview section, 3rd paragraph,  sentence "There is an added benefit that an organization
can access any excess capacity no being used by others".  No should be not. 
> - in overview section, 4th paragraph. dispropotionate misspelled 
> - in features section, under multitenancy - monopolizing is misspelled. 
> - in features section, under operability - it doesn't say if you can delete queues at
runtime?  I see there is a note at the end but perhaps that can be added into the other sections
to since its easy to miss that Note at the very end. 
> - in features section - hierarchy and Hierarchical mispelled. 
> - under configuration section the class to turn on to use capacity scheduler should be:
> - section on setting up queues, 4th sentence - hierarchy misspelled as heirarcy  and
> - I think specifying how a user has to specify the queue when running a job/app would
be useful information.  Especially with the new hierarchical queues.  Does the user have to
specify the entire path like a.b.c or can they just specify c. 
> - under "Running and Pending Application Limits" section, property "yarn.scheduler.capacity.maximum-applications",
they are referred to them as jobs, I believe that should be applications. 
> - misspelled concurrently as concurently in same section of maximum-applications. 
> - I think it should specify the defaults (if any) for the config vars.   Also what format
are they specified in - int, float,etc? 
> - might be nice to say it doesn't support preemption. 
> - under admin options yarn.scheduler.capacity.<queue-path>.state - queues misspelled
as queueus 
> - under changing queue configuration it should have "yarn" in front of the "rmadmin -refreshQueues".
Similarly a few lines down at "$YARN_HOME/bin/rmadmin -refreshQueues"

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