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Posted to common-dev@hadoop.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2007/11/23 06:20:43 UTC

[jira] Updated: (HADOOP-2266) Provide a command line option to check if a Hadoop jobtracker is idle

     [ https://issues.apache.org/jira/browse/HADOOP-2266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemanth Yamijala updated HADOOP-2266:
-------------------------------------

    Fix Version/s: 0.16.0

> Provide a command line option to check if a Hadoop jobtracker is idle
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-2266
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2266
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Hemanth Yamijala
>             Fix For: 0.16.0
>
>
> This is an RFE for providing a way to determine from the hadoop command line whether a jobtracker is idle. One possibility is to have something like hadoop jobtracker -idle <time>. Hadoop would return true (maybe via some stdout output) if the jobtracker had no work to do (jobs running / prepared) since <time> seconds, false otherwise.
> This would be useful for management / provisioning systems like Hadoop-On-Demand [HADOOP-1301], which can then deallocate the idle, provisioned clusters automatically, and release resources.

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