[ClusterLabs] Upgrade to OLE8 + Pacemaker

[Reid Wahl]

On Mon, Oct 2, 2023 at 10:51 PM Jibrail, Qusay (GfK) via Users <
users at clusterlabs.org> wrote:

> Hello,
>
>
>
> I am aiming for upgrading one of the cluster node to OLE8 (current version
> OLE7) and test if postfix is working fine.
>
> If yes then upgrade the second node to OLE8.
>
>
>
> My questions:
>
> Will Pacemaker configuration works after the upgrade?
>

Hi,

It should. Pacemaker supports rolling upgrades from 1.1.11 (and above) to
2.x.x. Other components besides Pacemaker may break, so I'd suggest having
a backout plan before any upgrade activity.


> Do I need to make any changes before or after the upgrade to OLE8?
>
> So server3 will be done first and then server4. Is that the right order?
>
> Do I need to stop any services before the upgrade?
>

For Pacemaker, follow the procedure at
https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Administration/singlehtml/#upgrading-a-pacemaker-cluster
.

Based on your plan, you should focus particularly on the rolling upgrade
section.

Refer to your OS vendor's documentation for any other steps you should take
during an OS upgrade.


>
> *[root at server3 ~]# pacemakerd --version*
>
> Pacemaker 1.1.23-1.0.1.el7_9.1
>
> Written by Andrew Beekhof
>
>
>
> *[root at server3 ~]# pcs status*
>
> Cluster name: xxxxxxxxxx
>
> Stack: corosync
>
> Current DC: *server3* (version 1.1.23-1.0.1.el7_9.1-9acf116022) -
> partition with quorum
>
> Last updated: Tue Oct  3 07:29:46 2023
>
> Last change: Sun May  1 17:02:03 2022 by hacluster via crmd on server3
>
>
>
> 2 nodes configured
>
> 2 resource instances configured
>
>
>
> Online: [ server3 server4 ]
>
>
>
> Full list of resources:
>
>
>
> Clone Set: smtpout-postfix-res-clone [smtpout-postfix-res]
>
>      Started: [ server3 server4 ]
>
>
>
> Daemon Status:
>
>   corosync: active/enabled
>
>   pacemaker: active/enabled
>
>   pcsd: active/enabled
>
>
>
> *[root at server3 ~]# postconf -d | grep mail_version*
>
> mail_version = 2.10.1
>
> milter_macro_v = $mail_name $mail_version
>
>
>
> *[root at server3 ~]# lsb_release -a*
>
> LSB Version:    :core-4.1-amd64:core-4.1-noarch
>
> Distributor ID: OracleServer
>
> Description:    Oracle Linux Server release 7.9
>
> Release:        7.9
>
> Codename:       n/a
>
>
>
> Kind regards,
>
> *––*
>
> *Qusay Jibrail*
>
> Senior Infrastructure Engineer – Linux | GfK IT Services
> GfK – an NIQ company | The Netherlands
> Krijgsman 22-25 | Amstelveen | 1186 DM
> T: +31 88 435 1232 | M: +31 628 927 686
>
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>
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>
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-- 
Regards,

Reid Wahl (He/Him)
Senior Software Engineer, Red Hat
RHEL High Availability - Pacemaker
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