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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1322) Tasktracker blacklist leads to hung jobs in single-node cluster
Date Thu, 03 May 2007 19:45:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12493485
] 

Doug Cutting commented on HADOOP-1322:
--------------------------------------

I forgot to include the bug ID in the commit message.  So, for the record, this is in revision
534973.

http://svn.apache.org/viewvc?view=rev&revision=534973

> Tasktracker blacklist leads to hung jobs in single-node cluster
> ---------------------------------------------------------------
>
>                 Key: HADOOP-1322
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1322
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Arun C Murthy
>         Assigned To: Arun C Murthy
>            Priority: Critical
>             Fix For: 0.13.0
>
>         Attachments: HADOOP-1322_20070503_1.patch, HADOOP-1322_20070503_2.patch
>
>
> Post HADOOP-1278, adding _the_ tasktracker to the blacklist in single-node clusters leads
to a situation where the entire cluster is 'flaky' and no trackers are available to execute
tasks. 
> The straight-forward fix to check before adding the tracker to the blacklist.

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