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https://issues.apache.org/jira/browse/BEAM-8819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16982424#comment-16982424
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Maximilian Michels commented on BEAM-8819:
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Marking Fix Version 2.17.0 because this looks important enough to fix for the
release. Pull request is ready.
> AvroCoder for SpecificRecords is not serialized correctly since 2.13.0
> ----------------------------------------------------------------------
>
> Key: BEAM-8819
> URL: https://issues.apache.org/jira/browse/BEAM-8819
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Affects Versions: 2.13.0, 2.14.0, 2.15.0, 2.16.0
> Reporter: Piotr Szczepanik
> Assignee: Piotr Szczepanik
> Priority: Major
> Fix For: 2.17.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> While trying to upgrade our pipelines from Beam 2.11.0 to Beam 2.16.0 we
> found that our SpecificRecords used in PCollection were being decoded as
> GenericRecords.
> After some investigation we found the specific commit/issue that we think did
> brake it:
> [https://github.com/apache/beam/pull/8342/files]
> https://issues.apache.org/jira/browse/BEAM-7103
> After the mentioned change all AvroCoders are serialized as simple urn:
> "beam:coder:avro:v1" which means they are deserialized / rehydrated as
> AvroCoder<GenericRecord>.
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