Mayank Bansal created MAPREDUCE-4305:
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Summary: Implement delay scheduling in capacity scheduler for
improving data locality
Key: MAPREDUCE-4305
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4305
Project: Hadoop Map/Reduce
Issue Type: New Feature
Reporter: Mayank Bansal
Assignee: Mayank Bansal
Capacity Scheduler data local tasks are about 40%-50% which is not good.
While my test with 70 node cluster i consistently get data locality around
40-50% on a free cluster.
I think we need to implement something like delay scheduling in the capacity
scheduler for improving the data locality.
http://radlab.cs.berkeley.edu/publication/308
After implementing the delay scheduling on Hadoop 22 I am getting 100 % data
locality in free cluster and around 90% data locality in busy cluster.
Thanks,
Mayank
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