Jiang Xingbo created SPARK-25045:
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Summary: Make `RDDBarrier.mapParititions` similar to
`RDD.mapPartitions`
Key: SPARK-25045
URL: https://issues.apache.org/jira/browse/SPARK-25045
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.4.0
Reporter: Jiang Xingbo
Signature of the function passed to `RDDBarrier.mapPartitions()` is different
from that of `RDD.mapPartitions`. The latter doesn’t take a TaskContext. We
shall make the function signature the same to avoid confusion and misusage.
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