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https://issues.apache.org/jira/browse/HADOOP-4931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12665733#action_12665733
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Vivek Ratan commented on HADOOP-4931:
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bq. I think monitoring should be with cluster setup rather than with the
map/reduce tutorial...
I'm not sure about this, for the following reasons:
* The cluster setup seems to be for setup required to make sure the cluster
works correctly - basic, core settings. At least that's my take on it. The TT
monitoring stuff is an optional feature, likely to be used only by power users.
* Splitting the memory features across three guides (cluster setup, M/R
tutorial, and Capacity Scheduler) seems excessive.
* The MR tutorial already had a section on 'Memory management', so it seemed
like a logical place to place our documentation.
* You can argue that there are plenty of parameters described in the MR
tutorial that are also 'admin features'.
Are there plans to have another guide, something like 'Hadoop features', or 'MR
features'? Maybe that's the right place for something like this: optional
features in the system that affect how things work.
Your other suggestions make sense. I'll incorporate them.
> Document TaskTracker's memory management functionality and
> CapacityScheduler's memory based scheduling.
> -------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4931
> URL: https://issues.apache.org/jira/browse/HADOOP-4931
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/capacity-sched, mapred
> Reporter: Vinod K V
> Assignee: Vivek Ratan
> Attachments: 4931.1.patch
>
>
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