[ARROW-14053] [C++] AsyncReaderTests.InvalidRowsSkipped is flaky

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29650
• Assignee: Nate Clark
• Reporter: Antoine Pitrou
• Created: 21/Sep/21 11:21
• Updated: 11/Jan/23 08:37
• Resolved: 21/Sep/21 23:50

Description

This occasional failure occurred:
https://github.com/apache/arrow/pull/11148/checks?check_run_id=3662252735#step:10:583

[ RUN      ] AsyncReaderTests.InvalidRowsSkipped
D:/a/arrow/arrow/cpp/src/arrow/csv/reader_test.cc:205: Failure
Expected equality of these values:
  NINVALID
    Which is: 50
  num_invalid_rows
    Which is: 49
[  FAILED  ] AsyncReaderTests.InvalidRowsSkipped (2 ms)

I'm not sure what this is due to, since CSV parsing is supposed to be deterministic? Is this test parsing blocks in parallel?

Issue Links

• links to: GitHub Pull Request #11198