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https://issues.apache.org/jira/browse/BEAM-12253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía updated BEAM-12253:
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Fix Version/s: 2.31.0
> Read.UnboundedSourceAsSDFRestrictionTracker doesn't use cache for readers in
> getProgress
> ----------------------------------------------------------------------------------------
>
> Key: BEAM-12253
> URL: https://issues.apache.org/jira/browse/BEAM-12253
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Sam Whittle
> Assignee: Sam Whittle
> Priority: P2
> Fix For: 2.31.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/io/Read.java#L963
> In getProgress, if currentReader == null a new reader is constructed from the
> restriction checkpoint. I think that we should consult the reader cache as
> creating readers is sometimes expensive.
> I observed in Nexmark pipelines that readers were being created at this
> location.
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