Hitesh Shah created TEZ-3168:
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Summary: Provide a more predictable approach for total resource
guidance for wave/split calculation
Key: TEZ-3168
URL: https://issues.apache.org/jira/browse/TEZ-3168
Project: Apache Tez
Issue Type: Bug
Reporter: Hitesh Shah
Assignee: Hitesh Shah
Currently, Tez uses headroom for checking total available resources. This is
flaky as it ends up causing the split count to be determined by a point in time
lookup at what is available in the cluster. A better approach would be either
the queue size or even cluster size to get a more predictable count.
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