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https://issues.apache.org/jira/browse/BEAM-10796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17548807#comment-17548807
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Danny McCormick commented on BEAM-10796:
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This issue has been migrated to https://github.com/apache/beam/issues/20422
> Python's Test Expansion Service for Combine transform returns pickled coder
> ---------------------------------------------------------------------------
>
> Key: BEAM-10796
> URL: https://issues.apache.org/jira/browse/BEAM-10796
> Project: Beam
> Issue Type: Bug
> Components: sdk-go, sdk-py-core
> Reporter: Kevin Sijo Puthusseri
> Priority: P3
>
> Trying to use the combine transform of Python's test expansion service
> executed from the Go SDK fails during runtime. Crashes the Go SDK harness
> with the following error:
> unmarshalling coder
> VSkoscjkPN_Coder_TupleCoder_7_length_prefixed_windowednmarshalling coder
> VSkoscjkPN_Coder_TupleCoder_7_length_prefixed_windowed unmarshalling coder
> VSkoscjkPN_Coder_TupleCoder_7_length_prefixed unmarshalling coder
> VSkoscjkPN_Coder_FastPrimitivesCoder_1_length_prefixedcould not unmarshal
> length prefix coder from spec:<urn:"beam:coder:length_prefix:v1" >
> component_coder_ids:"VSkoscjkPN_Coder_FastPrimitivesCoder_1" , want a custom
> coder as a sub component but got spec:<urn:"beam:coder:pickled_python:v1"
> payload:"\n\310\001FastPrimitivesCoder$QlpoOTFBWSZTWSYAoHgAAC334EwIiCAAIQkAQAC/bt0CYAQOACAAahpI0Bppo0GmRtINBqJ6QZAaNDQDyjRqC0RLwD4QPbijFck85Haypu6ovZAReEmQrcsyHc7KzNN4sFkXh7FICbooOXgwoVC0QQeEDWJD5shM4hP8XckU4UJAmAKB4A=="
> >
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