[ARROW-6884] [Python][Flight] Make server-side RPC exceptions more friendly?

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.16.0
• Component/s: FlightRPC, Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23212
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 14/Oct/19 21:46
• Updated: 11/Jan/23 07:50
• Resolved: 17/Oct/19 14:30

Description

Here is what an error looks like when a client RPC fails in the server

E   pyarrow.lib.ArrowException: Unknown error: gRPC returned unknown error, with message: a bytes-like object is required, not 'str'
E   In ../src/arrow/python/flight.cc, line 201, code: CheckPyError(). Detail: Python exception: TypeError

The "line 201, code:" business is added by -DARROW_EXTRA_ERROR_CONTEXT=ON so the normal use won't see this

It might be nice to re-raise the same exception type in the client with some extra context added to make clear that it is a server-side error

Issue Links

• links to: GitHub Pull Request #5662