Eric Xiao created FLINK-31873:
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Summary: Add setMaxParallelism to the DataStreamSink Class
Key: FLINK-31873
URL: https://issues.apache.org/jira/browse/FLINK-31873
Project: Flink
Issue Type: Bug
Components: API / DataStream
Reporter: Eric Xiao
When turning on Flink reactive mode, it is suggested to convert all
`setParallelism` calls to `setMaxParallelism`, [elastic
scaling|https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/deployment/elastic_scaling/#configuration].
With the current implementation of the `DataStreamSink`, only the
[`setParallelism`
function|https://github.com/apache/flink/blob/master/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/DataStreamSink.java#L172-L181]
of the [`Transformation` class is exposed - `Transformation` also has the
`setMaxParallelism` function which is not
exposed|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L248-L285].
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