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https://issues.apache.org/jira/browse/HADOOP-2227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547629
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Owen O'Malley commented on HADOOP-2227:
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The local directory handling of multiple directories has been an issue for a
long time. *grin* How about a weighted selection based on how much free space
there is? Once that is changed, then using the max of the freespace >
minspacestart seems like it would be right.
> wrong usage of mapred.local.dir.minspacestart
> ----------------------------------------------
>
> Key: HADOOP-2227
> URL: https://issues.apache.org/jira/browse/HADOOP-2227
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.15.1
> Reporter: Christian Kunz
> Assignee: Amareshwari Sri Ramadasu
> Priority: Critical
>
> As I understand it, mapred.local.dir.minspacestart should be used to specify
> that a map or reduce task requires a minimum disk space to be executed. When
> several disks are available, and mapred.local.dir lists all of them, then the
> free space should be added up. But TaskTracker.enoughFreeSpace returns false
> whenever one of the disks listed in mapred.local.dir has less than the space
> specified by mapred.local.dir.minspacestart.
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