Bug 1942449 - FFWD2 13->16 ovn db possible data loss during ffwd
Summary: FFWD2 13->16 ovn db possible data loss during ffwd
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-tripleo-heat-templates
Version: 16.1 (Train)
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: z3
: 16.2 (Train on RHEL 8.4)
Assignee: Lukas Bezdicka
QA Contact: Khomesh Thakre
URL:
Whiteboard:
: 2028164 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-24 12:04 UTC by Lukas Bezdicka
Modified: 2022-06-22 16:03 UTC (History)
6 users (show)

Fixed In Version: openstack-tripleo-heat-templates-11.6.1-2.20220123005237.a2533dd.el8ost
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-06-22 16:02:30 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
OpenStack gerrit 820023 0 None MERGED [train-only][ffwd] Resolve OVNDB data loss during upgrade 2022-02-24 16:15:28 UTC
Red Hat Issue Tracker OSP-690 0 None None None 2021-12-01 12:47:29 UTC
Red Hat Issue Tracker UPG-2753 0 None None None 2021-08-17 06:25:37 UTC
Red Hat Product Errata RHBA-2022:4793 0 None None None 2022-06-22 16:03:08 UTC

Description Lukas Bezdicka 2021-03-24 12:04:56 UTC 
Ovn database master is not copied to the first leapped node which can end up with loss of data about changes that happens during first 1/3rd of controlplane upgrade.
Comment 3 Lukas Bezdicka 2021-12-01 12:44:11 UTC 
Confirmed.

Steps to reproduce:
1) System upgrade controller-0 but don't continue with upgrade.
2) Spawn few vms and start pinging them - this creates records on ctrl1 and ctrl2
3) Continue with upgrade where ctrl1 and ctrl2 are shut off and ctrl0 deploys
4) During deployment when ovndb* starts on ctrl0 the ping starts to fail.

I verified that both ctrl1 and ctrl2 ovnsb/nb dbs can be copied and resolve the issue.
Comment 5 Sergii Golovatiuk 2021-12-14 12:56:20 UTC 
*** Bug 2028164 has been marked as a duplicate of this bug. ***
Comment 6 Lukas Bezdicka 2022-02-23 14:20:59 UTC 
Patch is part of 16.2-trunk-patches.
Comment 15 errata-xmlrpc 2022-06-22 16:02:30 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 (Release of components for Red Hat OpenStack Platform 16.2.3 (Train)), 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/RHBA-2022:4793
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