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https://issues.apache.org/jira/browse/HADOOP-3759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623384#action_12623384
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Arun C Murthy commented on HADOOP-3759:
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Minor nit: ResourceStatus should definitely use WritableUtils.{read|write}VLong
rather than DataOutput.{read|write}Long.
> Provide ability to run memory intensive jobs without affecting other running
> tasks on the nodes
> -----------------------------------------------------------------------------------------------
>
> Key: HADOOP-3759
> URL: https://issues.apache.org/jira/browse/HADOOP-3759
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Hemanth Yamijala
> Assignee: Hemanth Yamijala
> Fix For: 0.19.0
>
> Attachments: HADOOP-3759.patch, HADOOP-3759.patch, HADOOP-3759.patch,
> HADOOP-3759.patch, HADOOP-3759.patch
>
>
> In HADOOP-3581, we are discussing how to prevent memory intensive tasks from
> affecting Hadoop daemons and other tasks running on a node. A related
> requirement is that users be provided an ability to run jobs which are memory
> intensive. The system must provide enough knobs to allow such jobs to be run
> while still maintaining the requirements of HADOOP-3581.
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