[jira] [Created] (ARROW-8160) [FlightRPC][C++] DoPutPayloadWriter doesn't always expose server error message

["David Li (Jira)" <ji...@apache.org>]

David Li created ARROW-8160:
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             Summary: [FlightRPC][C++] DoPutPayloadWriter doesn't always expose server error message
                 Key: ARROW-8160
                 URL: https://issues.apache.org/jira/browse/ARROW-8160
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, FlightRPC
    Affects Versions: 0.16.0
            Reporter: David Li


{noformat}
C:/projects/arrow/cpp/src/arrow/flight/flight_test.cc(1261): error: Value of: status.message()
Expected: has substring "Invalid token"
  Actual: "Could not write record batch to stream: "
[  FAILED  ] TestBasicAuthHandler.FailUnauthenticatedCalls (17 ms)
{noformat}

This happens because {{Close()}} calls {{RecordBatchPayloadWriter::Close()}}, which calls {{CheckStarted}}, which in turn tries to write data. If the data gets flushed and the server responds in time, we'll see a failure during writing, causing us to never check the server status (which is the last part of {{DoPutPayloadWriter::Close}}). We need to reliably check and expose the gRPC status.



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