repeatedly blacklisted tasktrackers should get declared dead
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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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