corosync

Hi folks! I have a small homelab and I had 4 PVE nodes: pve0, pve1, pve2 and pve3 in 1 datacenter/cluster. I was looking to turn pve3 into PBS, so I simply disconnected the hardware and installed PBS there. When I login to GUI on pve0/pve1/pve2 I still can see pve3 and I'd like to get rid of...

Hello, I faced with a problem, where I had to rejoin same node to the cluster, but the following errors appeared: Please enter superuser (root) password for 'IP ADDR': ************** detected the following error(s): * authentication key '/etc/corosync/authkey' already exists * cluster config...

What is the best practice for the corosync network? I can't imagine it having much bandwidth requirements, and I'd hate to use a seperate nic just for this. seems to just need low latency. Since I have ceph public and cluster networks separated on separate 10G Nics, Can I put corosync on the...

Hello Proxmox Community, I hope this post finds you well. I'm currently facing an issue with my Proxmox setup, and I'm seeking advice on how to gracefully remove a node from a Proxmox cluster. Issue Summary: I accidentally created a Proxmox cluster with only one node, and now I'd like to...

Hi guys, In the company where I'm working, we have a Cluster composed of 8 nodes that are connected through a 1Gb ethernet network directly to a Switch. On the nodes we mostly run Kubernetes, DNS Servers and some other services. The problem is that on each node, the process corosync is using...

I tried to rename two of my nodes in my lab, and as I expected bricked the cluster configuration. Then I removed the cluster configs and created a new one, unfortunately I can't join to it..... what could be the reason for that? root@sofx1010pve3302.home.lan:~# pvecm add 192.168.30.7 -use_ssh...

Hello, we have a 3 node PVE cluster (7.4-16), with separate cluster interfaces. The cluster interfaces are in a bond (LACP). The cluster interfaces are connected to two Cisco Nexus switches. Over the weekend our complete HA cluster failed. According to the logs of the other servers, the...

Hi there, I have added a new node (pve-nuc6-5) while one was offline (pve-nuc6-4). As a result, pve-nuc6-4 remains offline despite being accessible. I noticed that pve-nuc6-4 was one version (Corosync.conf) behind the rest of the cluster. How do I force it to sync to the last version...

I made a mistake when I created a 5-node cluster. I added all nodes by IP to the cluster and `pvecm status` now shows: Cluster information ------------------- Name: cluster2 Config Version: 5 Transport: knet Secure auth: on Quorum information ------------------ Date...

Hello, I'm running PVE8.0 at home. Multiple users working from home with Windows VMs. Many small Linux VMs doing lots of low-bandwidth stuff. I'm in the process of setting up a 3-node cluster for HA. All 3 nodes have identical hardware. All 3 nodes are on a 10GB fiber network. All 3...

After temporary network issue, the nodes doesn't comeback quorum state. I only use 2 node in this cluster. corosync.conf of each node is same. Ping is OK. MTU is OK too. After "pvecm expected 1" exected, HA page "status" show "old timestamp - dead?, ..." in master, 2 lrms. What is the log file...

Hello everyone, I currently manage a 19-node Proxmox cluster and I believe that during the weekend one of the nodes failed during the weekly VM backup job. Due to that event, the corosync service lost sync at cluster level and the nodes can't speak to each other (no quorum) and they have been...

I'm trying to figure out the best way to ensure corosync has its own network. Please let me know if any of these points weren't ideal and why: I created a VLAN with no gateway (just a space on my switch with a unique subnet) 10.5.0.X and set all 8x of my nodes to addresses on that subnet. I...

Hey all, I just recently reconfigured my qdevice (I'm running a two-node setup with an external qdevice, per https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support). root@ff-pve02:~# pveversion -v proxmox-ve: 7.4-1 (running kernel: 5.15.107-2-pve) pve-manager: 7.4-4...

Hello, I just upgraded from 7.4 to 8, everything went ok until now. I have 2 nodes at home, which I use in a cluster. The node I am having trouble with is the one I upgraded (both are, but the other one I had to do a fresh install). I followed every step on the wiki and it all went fine, just a...

Hello, Cluster Proxmox 7.3+ I want to setup VIP ip for API connection. - round robin dns / etc is not an option. - VIP ip must be only on Quorate cluster and active node. Is there any proxmox / corosync option to achiewe this ?

I have an 12 node homelab that is regularly losing quorum. I think it might be due to a combination of high bandwidth activities (e.g. backups to a separate PBS server) and corosync being latency sensitive. The 12 nodes are almost all 1L PCs (e.g. Dell and Lenovo tiny/micro form factors). I...

I was trying out the proxmox functions, and I see that it is possible (and recommended) to have a separated network for cluster communication. Therefore I added link0 and link1 with a separated network (dual stack) and on a dedicated NIC port, and link2 and link3 the addresses with has gateway...

Hi. Can I have multiple HA-Clusters and one qdevice for all ?. Or two qdevices for 10 clusters for example.

I have accidentally deleted all corosync configs/files on one node of my cluster. Is there an easy way to get that node back into the cluster? I have already tried to copy /etc/corosync/* from another node but without success. Thanks in advance!