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https://issues.apache.org/jira/browse/HADOOP-5733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906438#action_12906438
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Starry Shi commented on HADOOP-5733:
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It seems that the patch cannot be directly applied on 0.21.0 release. the
source folder is changed on this release. also it cannot be applied on 0.20.1
and 0.20.2 release. i think it is better to specify on which release this patch
should be applied.
> Add map/reduce slot capacity and lost map/reduce slot capacity to JobTracker
> metrics
> ------------------------------------------------------------------------------------
>
> Key: HADOOP-5733
> URL: https://issues.apache.org/jira/browse/HADOOP-5733
> Project: Hadoop Common
> Issue Type: Improvement
> Components: metrics
> Reporter: Hong Tang
> Assignee: Sreekanth Ramakrishnan
> Fix For: 0.21.0
>
> Attachments: hadoop-5733-1.patch, hadoop-5733-2.patch,
> hadoop-5733-3.patch, hadoop-5733-4.patch, hadoop-5733-v20.patch
>
>
> It would be nice to have the actual map/reduce slot capacity and the lost
> map/reduce slot capacity (# of blacklisted nodes * map-slot-per-node or
> reduce-slot-per-node). This information can be used to calculate a JT view of
> slot utilization.
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