[ARROW-12779] [Python][FlightRPC] Flight server segfaults with certain data

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 5.0.0
• Component/s: FlightRPC, Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28518
• Assignee: David Li
• Reporter: David Li
• Created: 13/May/21 19:18
• Updated: 11/Jan/23 08:28
• Resolved: 08/Jun/21 15:19

Description

This do_get RPC handler segfaults when invoked:

def do_get(...):
    schema = pa.schema([])
    return flight.GeneratorStream(schema, itertools.repeat(schema.empty_table()))

A similar one for do_exchange also segfaults.

Confirmed using the Linux Conda package for 4.0.0.

Issue Links

• links to: GitHub Pull Request #10323