Junping Du created YARN-1163:
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Summary: Cleanup code for AssignMapsWithLocality() in
RMContainerAllocator
Key: YARN-1163
URL: https://issues.apache.org/jira/browse/YARN-1163
Project: Hadoop YARN
Issue Type: Improvement
Components: applications
Reporter: Junping Du
Assignee: Junping Du
Priority: Minor
In RMContainerAllocator, AssignMapsWithLocality() is a very important method to
assign map tasks on allocated containers with conforming different level of
locality (dataLocal, rackLocal, etc.). However, this method messed with
different code logic to handle different type of locality but have lots of
similar behaviours. This is hard to maintain as well as do extension with other
locality type, so we need some more clear code here.
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