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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1322) Tasktracker blacklist leads to hung jobs in single-node cluster
Date Wed, 02 May 2007 23:59:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12493251

Hadoop QA commented on HADOOP-1322:


http://issues.apache.org/jira/secure/attachment/12356678/HADOOP-1322_20070503_1.patch applied
and successfully tested against trunk revision r534624.

Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/106/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/106/console

> 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
> The straight-forward fix to check before adding the tracker to the blacklist.

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