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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-6964) Allow compact property description in xml
Date Thu, 05 Feb 2015 15:54:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307448#comment-14307448

Allen Wittenauer commented on HADOOP-6964:

bq. abort with RuntimeException at the time 

This would be disastrous during a 'refresh' or 'renew' or whatever-the-HDFS-team-decides-to-call-it-this-week
operation.  A running daemon would bite the dust!

bq. sometimes it's hard to debug the wrong configurations. 

Yup, agree. Luckily, HADOOP-7947 (which [~sekikn] is also working on!) covers the validation
part.  It isn't at runtime, however.

> Allow compact property description in xml
> -----------------------------------------
>                 Key: HADOOP-6964
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6964
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Owen O'Malley
>            Assignee: Kengo Seki
>              Labels: newbie
>         Attachments: HADOOP-6964.patch
> We should allow users to use the more compact form of xml elements. For example, we could
> {noformat}
> <property name="mapred.local.dir" value="/disk/0/mapred,/disk/1/mapred"/>
> {noformat}
> The old format would also be supported.

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