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From "Mahadev konar (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-840) the task tracker is getting blocked by long deletes of local files
Date Thu, 21 Dec 2006 23:40:22 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-840?page=all ]

Mahadev konar updated HADOOP-840:

    Attachment: lost-tt_1.patch

updated the patch to the current trunk. Fixed a nullpointer exception in the patch and also
changed synchronization so that initialization of the new job does not get stuck on cleanup
of the previous one.

> the task tracker is getting blocked by long deletes of local files
> ------------------------------------------------------------------
>                 Key: HADOOP-840
>                 URL: http://issues.apache.org/jira/browse/HADOOP-840
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.9.2
>            Reporter: Owen O'Malley
>         Assigned To: Owen O'Malley
>             Fix For: 0.10.0
>         Attachments: lost-tt.patch, lost-tt_1.patch
> The task tracker is getting blocked in the main heartbeat loop by doing task cleanups
in the main thread. We need to queue up the cleanup actions and work on them offline. This
should make our task trackers not miss heartbeats and thus get lost.

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