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https://issues.apache.org/jira/browse/HADOOP-4654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654699#action_12654699
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Amareshwari Sriramadasu commented on HADOOP-4654:
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I created HADOOP-4759 for trunk and 0.19.1, please continue to put your
thoughts on 4759.
> remove temporary output directory of failed tasks
> -------------------------------------------------
>
> Key: HADOOP-4654
> URL: https://issues.apache.org/jira/browse/HADOOP-4654
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.17.2, 0.18.1
> Reporter: Christian Kunz
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.18.3
>
> Attachments: patch-4654-0.18.txt, patch-4654-1-0.18.txt
>
>
> When dfs is getting full (80+% of reserved space), the rate of write failures
> increases, such that more map-reduce tasks can fail. By not cleaning up the
> temporary output directory of tasks the situation worsens over the lifetime
> of a job, increasing the probability of the whole job failing.
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