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https://issues.apache.org/jira/browse/BEAM-12253?focusedWorklogId=592395&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-592395
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ASF GitHub Bot logged work on BEAM-12253:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/May/21 21:22
Start Date: 03/May/21 21:22
Worklog Time Spent: 10m
Work Description: iemejia commented on pull request #14704:
URL: https://github.com/apache/beam/pull/14704#issuecomment-831544268
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Issue Time Tracking
-------------------
Worklog Id: (was: 592395)
Time Spent: 1.5h (was: 1h 20m)
> 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
> Time Spent: 1.5h
> 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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