[GitHub] [beam] damccorm opened a new issue, #20422: Python's Test Expansion Service for Combine transform returns pickled coder

[GitBox <gi...@apache.org>]

damccorm opened a new issue, #20422:
URL: https://github.com/apache/beam/issues/20422

   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\==" \> 
   
   Imported from Jira [BEAM-10796](https://issues.apache.org/jira/browse/BEAM-10796). Original Jira may contain additional context.
   Reported by: kevinsijo.


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