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From "Starry Shi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5733) Add map/reduce slot capacity and lost map/reduce slot capacity to JobTracker metrics
Date Mon, 06 Sep 2010 07:11:33 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906438#action_12906438
] 

Starry Shi commented on HADOOP-5733:
------------------------------------

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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