Paul Rogers created IMPALA-7692:
-----------------------------------
Summary: Profile averages not computed for Exchange
InactiveTotalTime TIME_NS counter
Key: IMPALA-7692
URL: https://issues.apache.org/jira/browse/IMPALA-7692
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 2.6.1
Reporter: Paul Rogers
Ran a unit test against a query profile created from the following Impala
version:
{noformat}
Impala Version: impalad version 2.6.0-cdh5.8.4 RELEASE (build
207450616f75adbe082a4c2e1145a2384da83fa6)
{noformat}
Then, did the math to compare each {{TCounter}} in the {{Fragment Average Fxx}}
subtree with the average of the details in the {{Fragment Fxx}}/{{Instance
xxx}} subtree. All matched except a few using the {{TUnit.TIME_NS}} counters.
The average was always (sometimes?) zero. For example:
{noformat}
EXCHANGE [HASH(...)]: Incorrect average for InactiveTotalTime (TIME_NS),
expected = 11605329272, actual = 0
2 EXCHANGE [BROADCAST]: Incorrect average for InactiveTotalTime
(TIME_NS), expected = 11043724227, actual = 0
{noformat}
Have not checked this with the latest version.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
