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Bug 2316114 - Reduce metadata outage during live-migration
Summary: Reduce metadata outage during live-migration
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-neutron
Version: 17.1 (Wallaby)
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
: ---
Assignee: Jakub Libosvar
QA Contact: Eran Kuris
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-02 13:55 UTC by Eduardo Olivares
Modified: 2025-01-10 10:07 UTC (History)
4 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2025-01-10 10:05:48 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   OSP-32889 0 None None None 2025-01-10 10:05:47 UTC
Red Hat Issue Tracker OSP-33397 0 None None None 2025-01-10 10:07:26 UTC

Description Eduardo Olivares 2024-10-02 13:55:31 UTC 
Description of problem:
This bug is a follow up from bz2236159
Please see comment number 19:
https://bugzilla.redhat.com/show_bug.cgi?id=2236159#c19

The patches implemented to fix that bug improved a lot the outage experienced when trying to access the metadata service during a live-migration.
However, some outage was still reproduced.
The intention of this bug is to reduce the current outage.




Version-Release number of selected component (if applicable):
17.1.4

How reproducible:
100%

Steps to Reproduce:
1. please see https://bugzilla.redhat.com/show_bug.cgi?id=2236159#c18
2.
3.

Actual results:
1 or 2 HTTP requests fail during a live-migration
(with 1 requests sent per second)

Expected results:
any improvement is welcomed
Comment 1 Eduardo Olivares 2024-10-04 10:25:36 UTC 
I'm working on a patch that adds some checkings on the duration of the metadata downtime to some tempest live migration tests:
https://review.opendev.org/c/openstack/tempest/+/931289
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