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https://issues.apache.org/jira/browse/BEAM-12391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Casey updated BEAM-12391:
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Status: Open (was: Triage Needed)
> WriteToAvro fails if fastavro loads its python implementation of writer
> -----------------------------------------------------------------------
>
> Key: BEAM-12391
> URL: https://issues.apache.org/jira/browse/BEAM-12391
> Project: Beam
> Issue Type: Bug
> Components: io-py-avro
> Affects Versions: 2.25.0, 2.26.0, 2.27.0, 2.28.0, 2.29.0
> Reporter: Chris Chandler
> Assignee: John Casey
> Priority: P3
> Labels: starter
>
> It's possible for fastavro to fail to correctly load its cython
> implementation of the Writer class in which case it will silently fall back
> to a pure python implementation. If this happens there's no outward
> indication, but line 621 in io/avroio.py will fail because writer.fo is only
> present on the cython implementation.
> To reproduce you can modify fastavro's write.py to only use its fallback:
> {code}
> #from . import _write
> from . import _write_py as _write
> {code}
> And then run a workflow that sinks to WriteToAvro(use_fastavro=True).
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