Ravindra Wagh created ARROW-8304:
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Summary: [Flight][Python] Flight client with TLS root certificate
is reporting error on do_get()
Key: ARROW-8304
URL: https://issues.apache.org/jira/browse/ARROW-8304
Project: Apache Arrow
Issue Type: Bug
Components: FlightRPC, Python
Affects Versions: 0.16.0
Reporter: Ravindra Wagh
I have started a flight's local python server with TLS support using the
testing certificates present in repo:
{code:java}
python3 <arrow_dir>/python/examples/flight/server.py --host localhost --tls
<arrow_dir>/testing/data/flight/cert0.pem
<arrow_dir>/testing/data/flight/cert0.key{code}
This server is started successfully.
Now I started testing the python client with TLS support.
1. Client pushing a csv file to the flightendpoint server:
{code:java}
python3 <arrow_dir>/python/examples/flight/client.py put --tls --tls-roots
<arrow_dir>/testing/data/flight/root-ca.pem localhost:5005
/sharedFolder/dataset/iris.csv{code}
File iris.csv is pushed successfully.
2. List the flights available on the server
{code:java}
python3 <arrow_dir>/python/examples/flight/client.py list --tls --tls-roots
<arrow_dir>/testing/data/flight/root-ca.pem localhost:5005{code}
It is listing the flight which is pushed in above step 1.
3. Get/Retrieve the specific flight(eg. /sharedFolder/dataset/iris.csv) from
the server
{code:java}
python3 <arrow_dir>/python/examples/flight/client.py get --tls --tls-roots
<arrow_dir>/testing/data/flight/root-ca.pem -p /sharedFolder/dataset/iris.csv
localhost:5005{code}
It is failing with following errors:
{quote}Ticket: <Ticket b"(1, None, (b'/sharedFolder/dataset/iris.csv',))">
<Location b'grpc+tls://localhost:5005'>
{color:#FF0000}E0401 06:43:30.164324553 1055 ssl_transport_security.cc:1238]
Handshake failed with fatal error SSL_ERROR_SSL: error:14090086:SSL
routines:ssl3_get_server_certificate:certificate verify failed.{color}
Traceback (most recent call last):
File "<arrow_dir>/python/examples/flight/client.py", line 178, in <module>
main()
File "<arrow_dir>/python/examples/flight/client.py", line 174, in main
commands[args.action](args, client)
File "<arrow_dir>/python/examples/flight/client.py", line 98, in get_flight
reader = get_client.do_get(endpoint.ticket)
File "pyarrow/_flight.pyx", line 1144, in pyarrow._flight.FlightClient.do_get
File "pyarrow/_flight.pyx", line 73, in pyarrow._flight.check_flight_status
pyarrow._flight.FlightUnavailableError: gRPC returned unavailable error, with
message: Connect Failed
{quote}
Python client.py is working for functions like _list_flights(), do_action(),
push_data()_ but failing on
_get_flight()_ function for code line.
{code:java}
reader = get_client.do_get(endpoint.ticket) {code}
.
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