mtraynham opened a new pull request #12094: URL: https://github.com/apache/airflow/pull/12094
gRPC is expecting the credentials to be bytes rather than a string. TypeError: expected certificate to be bytes, got <class 'str'> This is the fix suggested in the grpc repo. https://github.com/grpc/grpc/issues/16718#issuecomment-436046373 Without this fix, you get the following error: ``` File "/home/airflow/.local/lib/python3.6/site-packages/airflow/contrib/hooks/grpc_hook.py", line 102, in run with self.get_conn() as channel: File "/home/airflow/.local/lib/python3.6/site-packages/airflow/contrib/hooks/grpc_hook.py", line 68, in get_conn creds = grpc.ssl_channel_credentials(open(credential_file_name).read()) File "/home/airflow/.local/lib/python3.6/site-packages/grpc/__init__.py", line 1607, in ssl_channel_credentials certificate_chain)) File "src/python/grpcio/grpc/_cython/_cygrpc/credentials.pyx.pxi", line 134, in grpc._cython.cygrpc.SSLChannelCredentials.__cinit__ TypeError: expected certificate to be bytes, got <class 'str'> ``` <!-- Thank you for contributing! Please make sure that your code changes are covered with tests. And in case of new features or big changes remember to adjust the documentation. Feel free to ping committers for the review! In case of existing issue, reference it using one of the following: closes: #ISSUE related: #ISSUE How to write a good git commit message: http://chris.beams.io/posts/git-commit/ --> --- **^ Add meaningful description above** Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#pull-request-guidelines)** for more information. In case of fundamental code change, Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals)) is needed. In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). In case of backwards incompatible changes please leave a note in [UPDATING.md](https://github.com/apache/airflow/blob/master/UPDATING.md). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
