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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2982) [HOD] checknodes should look for free nodes without the jobs attribute
Date Wed, 26 Mar 2008 10:03:24 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Hemanth Yamijala updated HADOOP-2982:

    Attachment: 2982.patch

The attached file modifies the way we compute free nodes. The previous computation had a problem
in some corner cases. When there are runaway jobs, the pbsnodes utility reports that some
nodes are free, but the pbsmoms report that jobs are running. Such nodes should not be counted
as free, as jobs will not successfully run on them. The patch discards such nodes.

> [HOD] checknodes should look for free nodes without the jobs attribute
> ----------------------------------------------------------------------
>                 Key: HADOOP-2982
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2982
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>    Affects Versions: 0.16.0
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.17.0
>         Attachments: 2982.patch
> Modify the checknodes logic to compute number of available nodes by looking for the number
of free nodes without a jobs attribute. This is more accurate than current computation.

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