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https://issues.apache.org/jira/browse/FLINK-31873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Xiao updated FLINK-31873:
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Description:
When turning on Flink reactive mode, it is suggested to convert all
{{setParallelism}} calls to {{setMaxParallelism from }}[elastic scaling
docs|https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/deployment/elastic_scaling/#configuration].
With the current implementation of the {{DataStreamSink}} class, only the
{{[setParallelism|https://github.com/apache/flink/blob/master/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/DataStreamSink.java#L172-L181]}}
function of the
{{[Transformation|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L248-L285]}}
class is exposed - {{Transformation}} also has the
{{[setMaxParallelism|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L277-L285]}}
function which is not exposed.
This means for any sink in the Flink pipeline, we cannot set a max parallelism.
was:
When turning on Flink reactive mode, it is suggested to convert all
{{setParallelism}} calls to {{setMaxParallelism from the }}[elastic scaling
docs|https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/deployment/elastic_scaling/#configuration].
With the current implementation of the {{DataStreamSink}} class, only the
{{[setParallelism|https://github.com/apache/flink/blob/master/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/DataStreamSink.java#L172-L181]}}
function of the
{{[Transformation|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L248-L285]}}
class is exposed - {{Transformation}} also has the
{{[setMaxParallelism|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L277-L285]}}
function which is not exposed.
> 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
> Priority: Major
> Attachments: Screenshot 2023-04-20 at 4.33.14 PM.png
>
>
> When turning on Flink reactive mode, it is suggested to convert all
> {{setParallelism}} calls to {{setMaxParallelism from }}[elastic scaling
> docs|https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/deployment/elastic_scaling/#configuration].
> With the current implementation of the {{DataStreamSink}} class, only the
> {{[setParallelism|https://github.com/apache/flink/blob/master/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/DataStreamSink.java#L172-L181]}}
> function of the
> {{[Transformation|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L248-L285]}}
> class is exposed - {{Transformation}} also has the
> {{[setMaxParallelism|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/dag/Transformation.java#L277-L285]}}
> function which is not exposed.
>
> This means for any sink in the Flink pipeline, we cannot set a max
> parallelism.
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