milesgranger commented on code in PR #14698:
URL: https://github.com/apache/arrow/pull/14698#discussion_r1029742029
##########
python/pyarrow/_flight.pyx:
##########
@@ -1548,6 +1548,9 @@ cdef class FlightClient(_Weakrefable):
writer : FlightStreamWriter
reader : FlightMetadataReader
"""
+ if schema is None:
Review Comment:
Updated in
https://github.com/apache/arrow/pull/14698/commits/d38124fc1276757c2eb04b8c77afc67247284766,
when testing with removing the `not None` check, the error is somewhat
uninformative so left the `not None` in Cython.
```python
In [1]: import pyarrow.flight as flight
In [2]: client = flight.FlightClient('grpc+tls://localhost:9643',
disable_server_verification=True)
In [3]: client.do_put(flight.FlightDescriptor.for_command('foo'),
schema=None)
---------------------------------------------------------------------------
FlightUnavailableError Traceback (most recent call last)
Cell In [3], line 1
----> 1 client.do_put(flight.FlightDescriptor.for_command('foo'),
schema=None)
File ~/Projects/arrow/python/pyarrow/_flight.pyx:1559, in
pyarrow._flight.FlightClient.do_put()
1557
1558 with nogil:
-> 1559 check_flight_status(self.client.get().DoPut(
1560 deref(c_options),
1561 c_descriptor,
File ~/Projects/arrow/python/pyarrow/_flight.pyx:71, in
pyarrow._flight.check_flight_status()
69 raise FlightUnauthorizedError(message, detail_msg)
70 elif detail.get().code() == CFlightStatusUnavailable:
---> 71 raise FlightUnavailableError(message, detail_msg)
72
73 size_detail = FlightWriteSizeStatusDetail.UnwrapStatus(status)
FlightUnavailableError: Flight returned unavailable error, with message:
failed to connect to all
addresses; last error: UNKNOWN: Failed to connect to remote host: Connection
refused. gRPC
client debug context: UNKNOWN:Failed to pick subchannel
{created_time:"2022-11-
22T20:23:29.049965339+01:00", children:[UNKNOWN:failed to connect to all
addresses; last error:
UNKNOWN: Failed to connect to remote host: Connection refused
{grpc_status:14,
created_time:"2022-11-22T20:23:29.049961187+01:00"}]}. Additionally, could
not finish writing
record batches before closing. Client context: Invalid: nullptr for Schema
not allowed.
```
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