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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5643) Ability to blacklist tasktracker
Date Mon, 11 May 2009 20:15:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12708187#action_12708187
] 

Hudson commented on HADOOP-5643:
--------------------------------

Integrated in Hadoop-trunk #833 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/833/])
    . Adding the file src/test/mapred/org/apache/hadoop/mapred/TestNodeRefresh.java that got
missed earlier.
. Adds a way to decommission TaskTrackers while the JobTracker is running. Contributed by
Amar Kamat.


> Ability to blacklist tasktracker
> --------------------------------
>
>                 Key: HADOOP-5643
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5643
>             Project: Hadoop Core
>          Issue Type: New Feature
>    Affects Versions: 0.20.0
>            Reporter: Rajiv Chittajallu
>            Assignee: Amar Kamat
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-5643-v3.4.patch, HADOOP-5643-v4.0.patch, HADOOP-5643-v4.6.patch,
HADOOP-5643-v5.1.patch, HADOOP-5643-v5.12-testcase.patch, HADOOP-5643-v5.12.patch, HADOOP-5643-v5.5.patch,
HADOOP-5643-v5.9.patch
>
>
> Its not always possible to shutdown the tasktracker to stop scheduling tasks on the node.
(eg you can't login to the node but the TT is up). 
> This can be via 
>   * mapred.exclude and should be refreshed with out restarting the tasktracker
>   * hadoop job -fail-tracker <tracker id>

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