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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MAPREDUCE-227) Ability to pause/resume jobs
Date Thu, 06 Aug 2009 06:19:17 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hemanth Yamijala resolved MAPREDUCE-227.
----------------------------------------

    Resolution: Duplicate

Duplicate of MAPREDUCE-828. The consensus on this JIRA towards the end was that a per job
pause/resume functionality was not a desired direction, but there were use cases for pausing
the jobtracker itself.

In order to start fresh, and not get confused by the initial comments in this issue, I am
resolving this as a duplicate.

> Ability to pause/resume jobs
> ----------------------------
>
>                 Key: MAPREDUCE-227
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-227
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: HADOOP-4350-v1.2.patch, HADOOP-4350-v1.3.patch
>
>
> Consider a case where the user job depends on some external entity/service like a database
or a web service. If the service needs restart or encounters a failure, the user should be
able to pause the job and resume only when the service is up. This will be better than re-executing
the whole job. Hence there should be some way to pause/resume jobs (from web-ui/command line)
etc.

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