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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-682) Reserved tasktrackers should be removed when a node is globally blacklisted
Date Fri, 28 Aug 2009 06:01:00 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Hemanth Yamijala updated MAPREDUCE-682:

    Release Note: Jobtracker was modified to cleanup reservations created on tasktracker nodes
to support high RAM jobs, when the nodes are blacklisted.  (was: Fixes the issue with respect
to high ram job reservation not being cleared when the task tracker is black listed.)

> Reserved tasktrackers should be removed when a node is globally blacklisted
> ---------------------------------------------------------------------------
>                 Key: MAPREDUCE-682
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-682
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.21.0
>            Reporter: Hemanth Yamijala
>            Assignee: Sreekanth Ramakrishnan
>             Fix For: 0.21.0
>         Attachments: mapreduce-682-1.patch, mapreduce-682-2.patch, mapreduce-682-ydist.patch
> When support was added to reserve tasktrackers for high RAM jobs per MAPREDUCE-516, we
missed removing reservations on tasktrackers that are globally blacklisted. This is not a
major concern, just that the reservation might cause the job to finish a little later than
if the reservation is removed when the blacklisting happens.

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