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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4060) [HOD] Make HOD to roll log files on the client
Date Wed, 10 Sep 2008 05:09:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12629706#action_12629706
] 

Hemanth Yamijala commented on HADOOP-4060:
------------------------------------------

I just committed this to trunk. Thanks, Vinod.

Can someone with access please commit this to the 0.18 branch also ? The revision number for
trunk is 693705. I verified it merges cleanly.

> [HOD] Make HOD to roll log files on the client 
> -----------------------------------------------
>
>                 Key: HADOOP-4060
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4060
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>            Reporter: Hemanth Yamijala
>            Assignee: Vinod K V
>            Priority: Blocker
>             Fix For: 0.18.1, 0.19.0
>
>         Attachments: HOD-LOG-ROTATION.1.txt, HOD-LOG-ROTATION.txt
>
>
> Currently HOD writes a log file on the client in the cluster directory, named hod-<username>.log.
This file is appended to for each run of hod allocation that runs on the same cluster directory.
Thus, the file can become quite large - particularly if the job is queued for a long time.
If there are problems with the HOD client subsequently, this could result in stale file handles
pointing to this large file, and cause disk space to fill up. Another problem is that a large
log file is usually unusable for a user.

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