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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6317) Serialize the 'final'ness of Configuration keys
Date Mon, 19 Oct 2009 18:29:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767441#action_12767441
] 

Arun C Murthy commented on HADOOP-6317:
---------------------------------------

Aaron - Thinking a bit more about this... one important feature is the ability for the TaskTracker
to 'mark' configs as final programmatically. For e.g. the localized configs should be marked
final. Does that make sense? Apologies for missing this in the original proposal...

> Serialize the 'final'ness of Configuration keys
> -----------------------------------------------
>
>                 Key: HADOOP-6317
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6317
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Arun C Murthy
>            Assignee: Aaron Kimball
>             Fix For: 0.22.0
>
>         Attachments: HADOOP-6317.patch
>
>
> Currently Configuration.writeXml doesn't serialize the 'final' attribute. There are some
scenarios where it is useful:
> # TaskTracker should mark the tasks' 'localized' parameters as 'final' 
> # GUI tools

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