rohdesamuel commented on a change in pull request #12701:
URL: https://github.com/apache/beam/pull/12701#discussion_r481335695
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File path: sdks/python/apache_beam/runners/direct/test_stream_impl.py
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@@ -276,11 +276,20 @@ def _stream_events_from_rpc(endpoint, output_tags, coder,
channel, is_alive):
output_ids=[str(tag) for tag in output_tags])
event_stream = stub.Events(event_request)
- for e in event_stream:
- channel.put(_TestStream.test_stream_payload_to_events(e, coder))
- if not is_alive():
+ try:
+ for e in event_stream:
+ channel.put(_TestStream.test_stream_payload_to_events(e, coder))
+ if not is_alive():
+ return
+ except grpc.RpcError as e:
+ # This happens when the Python interpreter shuts down or whn in a
+ # notebook environment when the kernel is interrupted.
+ if e.code() == grpc.StatusCode.UNAVAILABLE:
Review comment:
So far I've only seen UNAVAILABLE as a non-error code. But looking at
https://developers.google.com/maps-booking/reference/grpc-api/status_codes I
think we can also add CANCELLED to not forward the exception.
At L290, we do have a finally clause which will run regardless, so the
endofstream will always be written to the channel.
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