Allow admins to set java options for map/reduce tasks
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Key: MAPREDUCE-1207
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1207
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: client
Reporter: Arun C Murthy
It will be useful for allow cluster-admins to set some java options for child
map/reduce tasks.
E.g. We've had to ask users to set -Djava.net.preferIPv4Stack=true in their
jobs, it would be nice to do it for all users in such scenarios even when
people override mapred.child.{map|reduce}.java.opts but forget to add this.
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