wuyi created SPARK-48394:
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Summary: Cleanup mapIdToMapIndex on mapoutput unregister
Key: SPARK-48394
URL: https://issues.apache.org/jira/browse/SPARK-48394
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.5.1, 3.5.0, 4.0.0
Reporter: wuyi
There is only one valid mapstatus for the same {{mapIndex}} at the same time in
Spark. {{mapIdToMapIndex}} should also follows the same rule to avoid chaos.
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