Josh Wills created CRUNCH-269:
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Summary: Allow clients to disable deep copies on intermediate DoFn
outputs
Key: CRUNCH-269
URL: https://issues.apache.org/jira/browse/CRUNCH-269
Project: Crunch
Issue Type: Bug
Components: Core
Affects Versions: 0.7.0
Reporter: Josh Wills
Assignee: Josh Wills
I have a pipeline that operates on some large objects, and the additional
overhead of creating a deep copy of them on intermediate outputs (i.e., DoFns
w/more than one child operation) when I know that all of their consumers are
going to be read-only is slowing down my runtime quite a bit. I'd like to have
an option that would allow me to disable intermediate deep copies on a
DoFn-by-DoFn basis and/or across an entire pipeline run when I know that it's
safe to do.
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