Hi, May I get an answer please?
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 [website]<https://www.gfk.com/home?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [blog]<https://www.gfk.com/blog?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [instagram]<https://instagram.com/gfk.insider> [linkedin]<https://linkedin.com/company/gfk> [youtube]<https://www.youtube.com/user/GfKTube> [twitter]<https://twitter.com/gfk> From: Jibrail, Qusay (GfK) Sent: Wednesday, 4 October 2023 11:11 To: Cluster Labs - All topics related to open-source clustering welcomed <users@clusterlabs.org> Subject: RE: [ClusterLabs] Upgrade to OLE8 + Pacemaker Hi Tomas, Ok.. it is getting little bit complicated. What about this approach: * pcs cluster stop “server3”, do upgrade to OLE8 + update pacemaker, corosync and pcs, check postfix is working, wait 1 day. * pcs cluster stop “server4”, do upgrade to OLE8 + update pacemaker, corosync and pcs, check postfix is working, wait 1 day. Now we have both servers running the same version of OS, pacemaker, corosync and pcs * Then pcs cluster start “server3” and pcs cluster start “server4” Will above works? We will have 2 days without load balancing. As the server will be rebooted during OLE8 upgrade, is it better to disable pacemaker, corosync and pcs services from starting after reboot? Or will it not start till I run the command pcs cluster start “server3” and pcs cluster start “server4”? 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 [website]<https://www.gfk.com/home?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [blog]<https://www.gfk.com/blog?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [instagram]<https://instagram.com/gfk.insider> [linkedin]<https://linkedin.com/company/gfk> [youtube]<https://www.youtube.com/user/GfKTube> [twitter]<https://twitter.com/gfk> From: Users <users-boun...@clusterlabs.org<mailto:users-boun...@clusterlabs.org>> On Behalf Of Tomas Jelinek Sent: Tuesday, 3 October 2023 16:50 To: users@clusterlabs.org<mailto:users@clusterlabs.org> Subject: Re: [ClusterLabs] Upgrade to OLE8 + Pacemaker Dne 03. 10. 23 v 16:24 Jibrail, Qusay (GfK) via Users napsal(a): Hi Reid, Thank you for the answer. So my plan will be: 1. pcs config backup /root/"Server Name" 2. create a backup of /etc/corosync/ 3. create a backup of /etc/postfix 4. pcs cluster stop “server3” --> just to do the failover to server4. The command pcs cluster stop “server3” will stop corosync and pacemaker right? Hi, Yes, 'pcs cluster stop' command stops both pacemaker and corosync. 1. 2. run pcs status on server3 which should give an error message. And on server4 should show 1 offline node and one online node 3. Upgrade server3 to OLE8 which will upgrade these 3 package to: corosync x86_64 3.1.7-1.el8 pacemaker x86_64 2.1.5-9.3.0.1.el8_8 pcs x86_64 0.10.15-4.0.1.el8_8.1 1. Then run crm_verify to check the configuration. If the verification is OK then, 2. pcs cluster start “server3” 3. run pcs status on both nodes. Please see the version of the current installed software. [root@server3 ~]# corosync -v Corosync Cluster Engine, version '2.4.5' Copyright (c) 2006-2009 Red Hat, Inc. [root@server3 ~]# pacemakerd --version Pacemaker 1.1.23-1.0.1.el7_9.1 Written by Andrew Beekhof [root@server3 ~]# pcs --version 0.9.169 Did I missed anything? Corosync 3 is not compatible with Corosync 2. So once you update server3 to OLE8, it won't be able to join server4 in the cluster and take over cluster resources. If you are restricted to two nodes, you may remove server3 from the cluster, update server3 to OLE8 and create a one node cluster on server3. Once you have two one-node clusters, move resources from server4 cluster to server3 cluster manually. Then you destroy cluster on server4, update server4 to OLE8, and add server4 to the new cluster. Regards, Tomas 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 [website]<https://www.gfk.com/home?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [blog]<https://www.gfk.com/blog?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [instagram]<https://instagram.com/gfk.insider> [linkedin]<https://linkedin.com/company/gfk> [youtube]<https://www.youtube.com/user/GfKTube> [twitter]<https://twitter.com/gfk> From: Reid Wahl <nw...@redhat.com><mailto:nw...@redhat.com> Sent: Tuesday, 3 October 2023 09:03 To: Cluster Labs - All topics related to open-source clustering welcomed <users@clusterlabs.org><mailto:users@clusterlabs.org> Cc: Jibrail, Qusay (GfK) <qusay.jibr...@gfk.com><mailto:qusay.jibr...@gfk.com> Subject: Re: [ClusterLabs] Upgrade to OLE8 + Pacemaker WARNING: This email originated outside of GfK. DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. On Mon, Oct 2, 2023 at 10:51 PM Jibrail, Qusay (GfK) via Users <users@clusterlabs.org<mailto:users@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<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@server3 ~]# pacemakerd --version Pacemaker 1.1.23-1.0.1.el7_9.1 Written by Andrew Beekhof [root@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@server3 ~]# postconf -d | grep mail_version mail_version = 2.10.1 milter_macro_v = $mail_name $mail_version [root@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 [website]<https://www.gfk.com/home?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [blog]<https://www.gfk.com/blog?utm_campaign=global_all_2022_email%20signature&utm_source=email&utm_medium=signature&utm_content=> [instagram]<https://instagram.com/gfk.insider> [linkedin]<https://linkedin.com/company/gfk> [youtube]<https://www.youtube.com/user/GfKTube> [twitter]<https://twitter.com/gfk> _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users<https://lists.clusterlabs.org/mailman/listinfo/users> ClusterLabs home: https://www.clusterlabs.org/<https://www.clusterlabs.org/> -- Regards, Reid Wahl (He/Him) Senior Software Engineer, Red Hat RHEL High Availability - Pacemaker _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users<https://lists.clusterlabs.org/mailman/listinfo/users> ClusterLabs home: https://www.clusterlabs.org/<https://www.clusterlabs.org/>
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