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https://issues.apache.org/jira/browse/BEAM-10670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334968#comment-17334968
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Kenneth Knowles commented on BEAM-10670:
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These ideas make sense. They should not require big changes. In fact the Spark
translator already should directly translate a composite if there is a
translator for it:
https://github.com/apache/beam/blob/8e6695643b69da1ab83c9aad16a913cf6e442823/runners/spark/src/main/java/org/apache/beam/runners/spark/SparkRunner.java#L397
> Make non-portable Splittable DoFn the only option when executing Java "Read"
> transforms
> ---------------------------------------------------------------------------------------
>
> Key: BEAM-10670
> URL: https://issues.apache.org/jira/browse/BEAM-10670
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Luke Cwik
> Assignee: Kenneth Knowles
> Priority: P3
> Labels: Clarified
> Fix For: 2.30.0
>
> Time Spent: 37h 50m
> Remaining Estimate: 0h
>
> All runners seem to be capable of migrating to splittable DoFn for
> non-portable execution except for Dataflow runner v1 which will internalize
> the current primitive read implementation that is shared across runner
> implementations.
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