Rohith Sharma K S created YARN-4537:
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Summary: Pull out priority comparison from fifocomparator and use
compound comparator for FIFOOrdering policy
Key: YARN-4537
URL: https://issues.apache.org/jira/browse/YARN-4537
Project: Hadoop YARN
Issue Type: Sub-task
Components: capacity scheduler
Reporter: Rohith Sharma K S
Assignee: Rohith Sharma K S
Currently, priority comparison is integrated with FifoComparator. There should
be a separate comparator defined for priority comparison so that down the line
if any new ordering policy wants to integrate priority, they can use compound
comparator where priority will be high preference.
The following changes are expected to be done as part of this JIRA
# Pull out priority comparison from FifoComparator
# Define new priority comparator
# Use compound comparator for FifoOrderingPolicy. Oder of preference is
Priority,FIFO
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