[PVE-User] VMs With Multiple Interfaces Rebooting

[Mark Schouten]

Hi JR,

What do you mean by ‘reboot’? Does the vm crash so that it is powered down from a HA point of view and started back up? Or does the VM OS nicely reboot?


Mark Schouten

> Op 22 nov 2024 om 07:18 heeft JR Richardson <jmr.richardson at gmail.com> het volgende geschreven:
> 
> Hey Folks,
> 
> Just wanted to share an experience I recently had, Cluster parameters:
> 7 nodes, 2 HA Groups (3 nodes and 4 nodes), shared storage.
> Server Specs:
> CPU(s) 40 x Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz (2 Sockets)
> Kernel Version Linux 6.8.12-1-pve (2024-08-05T16:17Z)
> Manager Version pve-manager/8.2.4/faa83925c9641325
> 
> Super stable environment for many years through software and hardware
> upgrades, few issues to speak of, then without warning one of my
> hypervisors in 3 node group crashed with a memory dimm error, cluster
> HA took over and restarted the VMs on the other two nodes in the group
> as expected. The problem quickly materialized as the VMs started
> rebooting quickly, a lot of network issues and notice of migration
> pending. I could not lockdown exactly what the root cause was. Notable
> was these particular VMs all have multiple network interfaces. After
> several hours of not being able to get the current VMs stable, I tried
> spinning up new VMs on to no avail, reboots persisted on the new VMs.
> This seemed to only affect the VMs that were on the hypervisor that
> failed all other VMs across the cluster were fine.
> 
> I have not installed any third-party monitoring software, found a few
> post in the forum about it, but was not my issue.
> 
> In an act of desperation, I performed a dist-upgrade and this solved
> the issue straight away.
> Kernel Version Linux 6.8.12-4-pve (2024-11-06T15:04Z)
> Manager Version pve-manager/8.3.0/c1689ccb1065a83b
> 
> Hope this was helpful and if there are any ideas on why this
> happened, I welcome any responses.
> 
> Thanks.
> 
> JR
> 
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