raulcd commented on code in PR #50687:
URL: https://github.com/apache/arrow/pull/50687#discussion_r3668093032


##########
python/pyarrow/_flight.pyx:
##########
@@ -2887,6 +2887,7 @@ cdef class _FlightServerFinalizer(_Weakrefable):
                     status = server.Wait()
             check_flight_status(status)
         finally:
+            server.ReleasePythonServerRef()

Review Comment:
   Commenting this line (`# server.ReleasePythonServerRef()`) the only test 
failing on `test_flight.py`:
   ```python
   
======================================================================================================
 FAILURES 
======================================================================================================
   
________________________________________________________________________________________
 test_flight_server_is_freed_on_exit 
_________________________________________________________________________________________
   
       def test_flight_server_is_freed_on_exit():
           # Using FlightServerBase as a context manager should free
           # the server object on exit.
           with FlightServerBase('grpc://localhost:0') as server:
               ref = weakref.ref(server)
           del server
           gc.collect()
   >       assert ref() is None
   E       AssertionError: assert <pyarrow._flight.FlightServerBase object at 
0x7fcf6e7f5cb0> is None
   E        +  where <pyarrow._flight.FlightServerBase object at 
0x7fcf6e7f5cb0> = <weakref at 0x7fcf6e7f5bc0; to 
'pyarrow._flight.FlightServerBase' at 0x7fcf6e7f5cb0>()
   
   pyarrow/tests/test_flight.py:1153: AssertionError
   ```



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