wuyi created SPARK-32878:
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Summary: Avoid scheduling TaskSetManager which has no pending tasks
Key: SPARK-32878
URL: https://issues.apache.org/jira/browse/SPARK-32878
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.1.0
Reporter: wuyi
Spark always tries to schedule a TaskSetManager even if it has no pending
tasks. We can skip them to avoid any potential overhead.
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