Configuration paramater to set the maximum number of mappers/reducers for a job
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Key: HADOOP-3925
URL: https://issues.apache.org/jira/browse/HADOOP-3925
Project: Hadoop Core
Issue Type: Improvement
Components: mapred
Reporter: dhruba borthakur
The JobTracker can be prone to a denial-of-service attack if a user submits a
job that has a very large number of tasks. This has happened once in our
cluster. It would be nice to have a configuration setting that limits the
maximum tasks that a single job can have.
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