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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3055) missing output for 'successful' jobs
Date Thu, 20 Mar 2008 07:16:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580686#action_12580686

Christian Kunz commented on HADOOP-3055:

Amareshwari was so kind to check out the situation and found that some TaskTracker was still
running 0.16.0. This TaskTracker was on a node which was down during upgrade and got revived

Would it make sense for JobTracker to refuse connections from TaskTrackers running an incompatible

> missing output for 'successful' jobs
> ------------------------------------
>                 Key: HADOOP-3055
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3055
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.16.1
>            Reporter: Christian Kunz
> Same job with 2000 reducers ended apparently successfully, but twice 2 reduce output
directories (different directories each time) were missing and the corresponding temporary
_task_xxx directories still existed (these tasks did not have speculatively executed companions).

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