[IMPALA-4775] discrepancy_searcher.py logging overwriting itself

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 2.9.0
• Fix Version/s: Impala 2.9.0
• Component/s: Infrastructure
• Target Version: Impala 2.9.0
• Assignee: Michael Brown
• Reporter: Michael Brown
• Created: 17/Jan/17 21:14
• Updated: 16/Jun/17 19:01
• Resolved: 20/Jan/17 15:55

Description

If I run discrepancy_searcher.py the log is overwritten near the end of execution and will only contain a single line:

13:02:47 INFO:hiveserver2[265]:Closing active operation

tail -F proves this is happening. From 1 execution of discrepancy_searcher.py:

13:02:47 INFO:discrepancy_searcher[799]:Results matched (1 rows)
tail: /tmp/discrepancy_searcher.py.log: file truncated
13:02:47 INFO:hiveserver2[265]:Closing active operation

This is a "regression" due to this commit:

IMPALA-4467: Add support for DML statements in stress test

... in which the Impyla version changed from 0.11.2 to 0.14.0.