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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5834) Job History log file format is not friendly for external tools.
Date Thu, 21 May 2009 06:28:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711489#action_12711489
] 

Owen O'Malley commented on HADOOP-5834:
---------------------------------------

Would adding a log4j logger than was only used for these events work for you? That is certainly
something I'd be interested in seeing. Because these event logs are used for JobTracker restart,
I don't think making it pluggable is a good plan. 

> Job History log file format is not friendly for external tools.
> ---------------------------------------------------------------
>
>                 Key: HADOOP-5834
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5834
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Owen O'Malley
>
> Currently, parsing the job history logs with external tools is very difficult because
of the format. The most critical problem is that newlines aren't escaped in the strings. That
makes using tools like grep, sed, and awk very tricky.

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