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From "Philip Zeyliger (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 00:01:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711429#action_12711429
] 

Philip Zeyliger commented on HADOOP-5834:
-----------------------------------------

I'm +1 on JSON.  It might make sense to introduce a hook to have multiple sinks for this sort
of log data.  I'd like to siphon it off some of the data to a database, and I could also see
some folks wishing to compress these logs.

> 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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