Hi Mark, Thanks. Yes we are investigating with network engineers.
We upgraded the entire cluster in PVE 6.2 and the cluster is fully operational now.
But we think indeed that something in the network has changed and caused the problem (switch upgrades ?)
Therefore, for example, does activating or disabling the IGMP protocol could have an impact on corosync or not (in PVE 6) ?
Regards, Hervé On 11/05/2020 19:33, Mark Adams via pve-user wrote:
Subject: Re: [PVE-User] critical HA problem on a PVE6 cluster From: Mark Adams <m...@openvs.co.uk> Date: 11/05/2020 à 19:33 To: PVE User List <pve-user@pve.proxmox.com> As Eneko already said, this really sounds like a network problem - if your hosts lose connectivity to each other they will reboot themselves, and it sounds like this is what happened to you. You are sure there has been no changes to your network around the time this happened? Have you checked your switch config is still right (maybe it reset?) Maybe the switches have bugged out and need a reboot? check the logs on them for errors.
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