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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4305) repeatedly blacklisted tasktrackers should get declared dead
Date Mon, 29 Sep 2008 15:03:44 GMT
repeatedly blacklisted tasktrackers should get declared dead
------------------------------------------------------------

                 Key: HADOOP-4305
                 URL: https://issues.apache.org/jira/browse/HADOOP-4305
             Project: Hadoop Core
          Issue Type: Improvement
          Components: mapred
            Reporter: Christian Kunz


When running a batch of jobs it often happens that the same tasktrackers are blacklisted again
and again. This can slow job execution considerably, in particular, when tasks fail because
of timeout.
It would make sense to no longer assign any tasks to such tasktrackers and to declare them
dead.

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