Generalize mapred.child.ulimit so as to help setting up other limits.
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Key: HADOOP-3974
URL: https://issues.apache.org/jira/browse/HADOOP-3974
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Vinod Kumar Vavilapalli
Currently mapred.child.ulimit cannot be used for anything other than for
setting virtual limits. It is hardcoded to set virtual mem limits (ulimit -v)
only. This should be changed so that other limits like open file descriptors,
max user processes etc can be set.
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