Lantao Jin created SPARK-27038:
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Summary: Rack resolving takes a long time when initializing
TaskSetManager
Key: SPARK-27038
URL: https://issues.apache.org/jira/browse/SPARK-27038
Project: Spark
Issue Type: Bug
Components: YARN
Affects Versions: 2.4.0
Reporter: Lantao Jin
If submits a stage with abundant tasks, rack resolving takes a long time when
initializing TaskSetManager caused by a mass of loops to execute rack resolving
script.
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