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https://issues.apache.org/jira/browse/BEAM-8819?focusedWorklogId=349681&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-349681
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ASF GitHub Bot logged work on BEAM-8819:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 26/Nov/19 10:14
            Start Date: 26/Nov/19 10:14
    Worklog Time Spent: 10m 
      Work Description: piter75 commented on issue #10218: [BEAM-8819] Fix 
AvroCoder serialisation by introduction of AvroGenericCoder specialisation
URL: https://github.com/apache/beam/pull/10218#issuecomment-558560462
 
 
   R: mxm
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 349681)
    Time Spent: 0.5h  (was: 20m)

> 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
>            Priority: Major
>          Time Spent: 0.5h
>  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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