Reviewed: https://review.opendev.org/c/x/charm-ovn-chassis/+/804743
Committed:
https://opendev.org/x/charm-ovn-chassis/commit/8cbffde5f7dcdd3ab69c892454daf67dc61124f3
Submitter: "Zuul (22348)"
Branch: master
commit 8cbffde5f7dcdd3ab69c892454daf67dc61124f3
Author: Frode Nordahl <frode.nord...@canonical.com>
Date: Mon Aug 16 15:26:35 2021 +0200
Improve handling of major version upgrades
Setting the external_ids:ovn-match-northd-version value to
'true' will make the ovn-controller refrain from making updates to
the data plane tables in the event of a version mismatch.
This in combination with stopping the ovn-controller with the
ovn-ctl stop_controller --restart command will allow upgrades
to progress with little or no data plane downtime.
(Note that we will accomplish this by a separate proposal to the
OVN package itself in Ubuntu.)
As soon as the central components are upgraded ovn-controller will
notice and resume (re-)programming of the local Open vSwitch data
plane.
Closes-Bug: #1940043
Change-Id: I1e2bb031a970597c5e5b587b3219e4c4f7db2e36
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https://bugs.launchpad.net/bugs/1940043
Title:
Upgrade from OVN 20.03 to newer OVN version will cause data plane
outage
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