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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1441) Configuration of directory lists should trim whitespace
Date Sat, 13 Feb 2010 18:34:29 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833427#action_12833427
] 

Hudson commented on MAPREDUCE-1441:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk #234 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk/234/])
    . Trim whitespace from directory lists pulled from the configuration. Contributed by Todd
Lipcon


> Configuration of directory lists should trim whitespace
> -------------------------------------------------------
>
>                 Key: MAPREDUCE-1441
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1441
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker, tasktracker
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: mapreduce-1441.txt
>
>
> HADOOP-2366 added a getTrimmedStringCollection method to Configuration. MapReduce should
use this for all the cases where it configures a list of directories. This solves issues that
come up when people set mapred.local.dir to "/data/1, /data/2, /data/3" (note the spaces).
This is a very common mistake that we should guard against.

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