3 node cluster loosing network connectivity randomly

[Binary Bandit]

Hi All,

We've been chasing an issue where our 3 node cluster (see attached version info) seemingly randomly looses connectivity to the Internet. When this happens multiple VoIP PBXs, a CPanel server, a Unifi server, etc. all loose connectivity to the Internet.

I'm not 100% sure that this is a Proxmox issue rather I wanted to ask what I should be looking for in Proxmox logs, etc. to snif out any issues ... or perhaps best practices to look at as network trafic increases.

thanks all,

James

 

[wolfgang]

Hi,

To debug this problem check the following
a.) inspect the syslogs at /var/log/syslog
b.) inspect the kernel ring buffer

 dmesg

c.) run tcpdump on a physical nic and tap device with a filter that only observe a single VM.

just a side node.
Consider upgrading to Proxmox VE 6.2.[1][2]
Because Proxmox VE 5 is EOL in about two months.[3]

1.) https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0
2.) https://pve.proxmox.com/wiki/Ceph_Luminous_to_Nautilus
3.) https://forum.proxmox.com/threads/proxmox-ve-support-lifecycle.35755/

 

[Binary Bandit]

@wolfgang, thank you.

Currently I'm pursuing this here as I believe that this is related to a PFsense 2.4.5 bug.

https://forum.netgate.com/topic/153663/performance-impact-of-clicking-apply-changes

Also, your point about support ending is noted. Thank you.