[IMPALA-4722] test_scratch_disk.py fails sporadically when asserting logfile content

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0
• Fix Version/s: Impala 2.9.0
• Component/s: Infrastructure
• Labels: broken-build flaky
• Assignee: Lars Volker
• Reporter: Lars Volker
• Created: 04/Jan/17 09:37
• Updated: 13/Jan/17 10:12
• Resolved: 13/Jan/17 10:12

Description

In automated tests we're seeing sporadic failures of tests/custom_cluster/test_scratch_disk.py. It looks like the log contents may not have been flushed to disk before calling self.assert_impalad_log_contains("INFO", "Using scratch directory ", expected_count=1). This can be fixed by adding --logbuflevel=-1 or --logbufsecs=0 to the startup flags.