Wangda Tan created YARN-7158:
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Summary: Address performance issue when 3+ resource types
configured in the system
Key: YARN-7158
URL: https://issues.apache.org/jira/browse/YARN-7158
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Wangda Tan
Assignee: Wangda Tan
Priority: Critical
In existing YARN-3926 branch, we use BaseResource to handle 2 mandatory
resource types (memory+cpu) configured in the system. Once we have 3 or more
resource types configured in the system. YARN will use ResourcePBImpl to
initialize resource objects, which will be very expensive. We should update
BaseResource when do resource calculation in RM instead of using PB-backed
resource implementation.
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