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https://issues.apache.org/jira/browse/BEAM-10670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17339898#comment-17339898
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Kenneth Knowles commented on BEAM-10670:
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I think this bug might have the wrong title now? Anyhow I think that every
transform should ideally have an SDF in their expansion (this is true?) but the
runners should execute however they want. What needs to be changed back in the
SparkRunner? This is important and we should cherrypick for 2.30.0
> 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: P1
> 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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