Extend FairShare scheduler to fair-share memory usage in the cluster
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Key: MAPREDUCE-944
URL: https://issues.apache.org/jira/browse/MAPREDUCE-944
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: contrib/fair-share
Reporter: dhruba borthakur
The FairShare Scheduler has an extensible LoadManager API to regulate
allocating new tasks on a particular TaskTracker. In similar lines, it would be
nice if the FairShare Scheduler can have a pluggable policy to regulate new
tasks from a particular job. This will allow one to skip scheduling tasks of a
job that is eating a large percentage of memory in the cluster, i.e.
fair-share of memory resources among jobs.
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