Date: Wed, 22 Nov 2023 18:41:57 -0700 From: John Nielsen <lists@jnielsen.net> To: Pete French <pete@twisted.org.uk> Cc: FreeBSD Stable Mailing List <freebsd-stable@freebsd.org> Subject: Re: How to upgrade a carp pair from 13 to 14 given the pfsync protocol changed ? Message-ID: <72A77920-E4EC-4553-A99A-21A0B1BD5E09@jnielsen.net> In-Reply-To: <753f0ad9-bc19-4c81-ba78-1ed67aab8b99@twisted.org.uk> References: <753f0ad9-bc19-4c81-ba78-1ed67aab8b99@twisted.org.uk>
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> On Nov 21, 2023, at 9:42=E2=80=AFAM, Pete French <pete@twisted.org.uk> wro= te: >=20 > =EF=BB=BFI spotted this in the release notes, but am unsure how to now act= ual do this. I have two machines running carp, as a failover pair, and I nor= mally upgrade BACKUP, reboot, switch to MASTER, and do the other and flip ba= ck. >=20 > But I dont quite see how to do this from 13 to 14 - my worry is that when t= he upgraded machine comes back up, it will just take on MASTER and I will ha= ve two MASTERs. >=20 > I see that it's possible to make the talk the old protocol, but then how d= o I move to the new protocol ? Specify the old protocol in rc.conf on both machines and do the upgrade one a= t a time. Once both are upgraded, stop pfsync on the standby machine, change= the version on the active machine, restart pfsync on the standby machine al= so with the new version.
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