ihji commented on a change in pull request #14671:
URL: https://github.com/apache/beam/pull/14671#discussion_r652316078
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File path: sdks/python/apache_beam/transforms/external.py
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@@ -319,25 +319,9 @@ def _service(self):
if isinstance(self._expansion_service, str):
channel_options = [("grpc.max_receive_message_length", -1),
("grpc.max_send_message_length", -1)]
- if hasattr(grpc, 'local_channel_credentials'):
- # Some environments may not support insecure channels. Hence use a
- # secure channel with local credentials here.
Review comment:
@mxm I think the issue here is not whether the channel is secure or
insecure. The point is `local_channel_credentials` only allows local
connections so we can't use the expansion service running on a remote server.
This PR makes sense to me.
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