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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-140) Add capacity-scheduler-default.xml to provide a default set of configurations for the capacity scheduler.
Date Wed, 24 Oct 2012 12:58:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13483196#comment-13483196
] 

Hudson commented on YARN-140:
-----------------------------

Integrated in Hadoop-Hdfs-trunk #1205 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1205/])
    YARN-181. Fixed eclipse settings broken by capacity-scheduler.xml move via YARN-140. Contributed
by Siddharth Seth. (Revision 1401504)

     Result = FAILURE
vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1401504
Files : 
* /hadoop/common/trunk/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/capacity-scheduler.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/conf/capacity-scheduler.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml

                
> Add capacity-scheduler-default.xml to provide a default set of configurations for the
capacity scheduler.
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-140
>                 URL: https://issues.apache.org/jira/browse/YARN-140
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>             Fix For: 2.0.3-alpha
>
>         Attachments: YARN-140.patch, YARN-140_rev2.patch, YARN-140_rev3.patch, YARN-140_rev4.patch,
YARN-140_rev5_onlyForJenkins.patch, YARN-140_rev5.patch, YARN-140_rev5_svn_mv.patch, YARN-140_rev6_onlyForJenkins.patch,
YARN-140_rev6.patch, YARN-140_rev7_onlyForJenkins.patch, YARN-140_rev8_onlyForJenkins.patch,
YARN-140_rev9.patch, YARN-140_rev9_svn_mv.patch
>
>
> When setting up the capacity scheduler users are faced with problems like:
> {code}
> FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error starting ResourceManager
> java.lang.IllegalArgumentException: Illegal capacity of -1 for queue root
> {code}
> Which basically arises from missing basic configurations, which in many cases, there
is no need to explicitly provide, and a default configuration will be sufficient. For example,
to address the error above, the user need to add a capacity of 100 to the root queue.
> So, we need to add a capacity-scheduler-default.xml, this will be helpful to provide
the basic set of default configurations required to run the capacity scheduler. The user can
still override existing configurations or provide new ones in capacity-scheduler.xml. This
is similar to *-default.xml vs *-site.xml for yarn, core, mapred, hdfs, etc.

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