Chandni Singh created SPARK-36389:
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Summary: Revert the change that accepts negative mapId
Key: SPARK-36389
URL: https://issues.apache.org/jira/browse/SPARK-36389
Project: Spark
Issue Type: Bug
Components: Shuffle
Affects Versions: 3.2.0
Reporter: Chandni Singh
With SPARK-32922, we added a change that {{ShuffleBlockId}} can have a negative
mapId. This was to support push-based shuffle where {{-1}} as mapId indicated a
push-merged block. However with SPARK-32923, a different type of {{BlockId}}
was introduce - {{ShuffleMergedId}}, but reverting the change to
{{ShuffleBlockId}} was missed.
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