Tianyi Wang d7e41a3776 IMPALA-4987: Fix flaky test test_row_availability.py ...

This patch keeps test_row_availbility from randomly failing. In this test
the time interval between the 'Rows available' timeline event and the
previous event in the runtime profile is measured in order to make sure
that the rows become available after a specific amount of time. This
measurement is not correct since the previous event is that the
coordinator finished sending the query fragments to the backends, which
means the execution on some backends might have already started. This
patch tracks another event "Ready to start" as the beginning of the time
interval instead. The coordinator begins to send the query fragments to
the backends after this event so the time check should always pass.

Change-Id: I96142f1868a26426cbc34aa9a0e0a56979df66c3
Reviewed-on: http://gerrit.cloudera.org:8080/8036
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: Impala Public Jenkins

2017-09-13 00:55:05 +00:00

5.9 KiB

Raw Blame History

View Raw