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https://issues.apache.org/jira/browse/BEAM-3982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henning Rohde resolved BEAM-3982.
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Resolution: Fixed
Fix Version/s: 2.5.0
> Transform libraries not registering their types
> -----------------------------------------------
>
> Key: BEAM-3982
> URL: https://issues.apache.org/jira/browse/BEAM-3982
> Project: Beam
> Issue Type: Bug
> Components: sdk-go
> Reporter: Bill Neubauer
> Assignee: Henning Rohde
> Priority: Minor
> Fix For: 2.5.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The transform libraries in the SDK have structs-as-DoFns, but the types are
> not registered. While this works in a direct runner, trying to run examples
> using those libraries fails because the DoFns aren't serializable.
> It's not clear how to make the libraries intrinsically self-policing. At
> least to ensure the examples work, these failures can be exposed easily using
> the flags "--runner=dataflow --dry_run" to force the serialization error.
>
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