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Posted to mapreduce-issues@hadoop.apache.org by "Hitesh Shah (JIRA)" <ji...@apache.org> on 2012/08/03 02:07:02 UTC
[jira] [Commented] (MAPREDUCE-4508) YARN needs to properly check
the NM,AM memory properties in yarn-site.xml and mapred.xml and report
errors accordingly.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427751#comment-13427751 ]
Hitesh Shah commented on MAPREDUCE-4508:
----------------------------------------
Seems like a dup of MAPREDUCE-3796
> YARN needs to properly check the NM,AM memory properties in yarn-site.xml and mapred.xml and report errors accordingly.
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4508
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4508
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: nodemanager, resourcemanager
> Affects Versions: 2.0.0-alpha
> Environment: CentOs6.0, Hadoop2.0.0 Alpha
> Reporter: Anil Gupta
> Labels: Map, Reduce, YARN
>
> Please refer to this discussion on the Hadoop Mailing list:
> http://comments.gmane.org/gmane.comp.jakarta.lucene.hadoop.user/33110
> Summary:
> I was running YARN(Hadoop2.0.0 Alpha) on a 8 datanode, 4 admin node Hadoop/HBase cluster. My datanodes were only having 3.2GB of memory. So, i configured the yarn.nodemanager.resource.memory-mb property in yarn-site.xml to 1200. After setting the property if i run any Yarn Job then the NodemManager wont be able to start any Map task since by default the yarn.app.mapreduce.am.resource.mb property is set to 1500 MB in mapred-site.xml.
> Expected Behavior: NodeManager should give an error if yarn.app.mapreduce.am.resource.mb >= yarn.nodemanager.resource.memory-mb.
> Please let me know if more information is required.
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