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https://issues.apache.org/jira/browse/BEAM-206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282851#comment-15282851
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Daniel Halperin commented on BEAM-206:
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Hi Roland,
I'm a big jerk, but apparently I forgot to assign this issue to myself when I
created it to track my own work. Sorry for the inconvenience, but I am already
testing a fairly complex solution here.
> FileBasedSink does serial renames
> ---------------------------------
>
> Key: BEAM-206
> URL: https://issues.apache.org/jira/browse/BEAM-206
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-gcp
> Reporter: Daniel Halperin
> Priority: Critical
>
> This code can be the bottleneck if there are many small files. Should be
> parallelized when possible.
> https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/io/FileBasedSink.java#L633
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