Bug 1953996

Summary:	Not possible to run neutron tempest tests with console_output=False, slow execution of tests with many VMs
Product:	Red Hat OpenStack	Reporter:	Roman Safronov <rsafrono>
Component:	python-neutron-tests-tempest	Assignee:	Roman Safronov <rsafrono>
Status:	CLOSED ERRATA	QA Contact:	Roman Safronov <rsafrono>
Severity:	low	Docs Contact:
Priority:	high
Version:	16.2 (Train)	CC:	ekuris, ralonsoh, shrjoshi, skaplons, spower
Target Milestone:	beta	Keywords:	AutomationBlocker, Triaged
Target Release:	16.2 (Train on RHEL 8.4)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	python-neutron-tests-tempest-0.9.0-2.20210528123644.el8ost.2	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:	1920163	Environment:
Last Closed:	2021-09-15 07:14:29 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1920163
Bug Blocks:

Description Roman Safronov 2021-04-27 11:45:03 UTC

+++ This bug was initially created as a clone of Bug #1920163 +++

Description of problem:
There is a bug in the function wait_for_guest_os_ready which we hit when running neutron tempest tests while tempest config compute_feature_enabled.console_output set to False.

With console_output set to True we do not hit the bug but test execution is very slow for tests where we launch more than 1 VM because each VM is spawned after previous one is fully booted. this causes that some downstream multicast tests which are spawning 3+ VMs are very slow.

Note: with console_output set to False we are able to launch all 3-5 VMs simultaneously. All VMs are up after less than a minute.

Version-Release number of selected component (if applicable):
python3-neutron-tests-tempest-0.9.0-2.20210224125007.15c85f6.el8ost.1.noarch

How reproducible:
100%

Steps to Reproduce:
1. Set tempest config value compute_feature_enabled.console_output to False
2. Run any test that uses wait_for_guest_os_ready, e.g. test_multicast_between_vms_on_same_network


Actual results:
Test fails on wrong index

Expected results:
Test passes

Comment 6 Roman Safronov 2021-08-02 13:34:54 UTC

Verified on puddle RHOS-16.2-RHEL-8-20210728.n.2 with  python3-neutron-tests-tempest-0.9.0-2.20210528123644.el8ost.2.noarch.
Verified that it is possible to run tempest with console_output = False without errors.

Comment 8 errata-xmlrpc 2021-09-15 07:14:29 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Red Hat OpenStack Platform (RHOSP) 16.2 enhancement advisory), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2021:3483