Sam Whittle created BEAM-12253:
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Summary: 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
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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