corosync

I removed a node from a two node cluster. I first had to set quorum_votes: 2 inside /etc/pve/corosync.conf on the remaining node. pvecm delnode pvec1n2 worked perfectly. The removed node is offline and not connected to the network. However the deleted node is still visible as a red entry on the...

I have been having a consistent and incredibly frustrating issue where a single node in my datacenter being rebooted causes the entire datacenter to fail and the web GUI to malfunction and become useless. I then need to log into the node(s) over SSH and either restart cluster related services...

Hi everyone, I'm having some performance issues with the Proxmox API on my cluster. As the number of users and virtual machines grows, the API becomes slower and slower to respond. I've already checked that the hardware is top-notch and the servers have enough resources, and I've also checked...

Hey yall, my 2 Node Cluster started to do weird things I cant explain - at least for now. All nodes run on the latest 7.3.4 release. Serv1 seems to be offline? It can be pinged, and I can open terminals (even from VMs), view stats etc. It is marked with a question mark from both...

Hello everyone, first time post, sorry if the formatting is wrong. So I started in a company and took over a proxmox cluster on Debian 11. After toying with proxmox for a few months, I decided to check the last thing on my predecessor's to-do list "keep the system up to date". Simple enough...

Related to this other thread, tagging @fabian as requested. I currently have a cluster with 13 nodes running. Everything is updated to the latest versions (except for the kernel which is pinned to 5.13.19-6-pve on all nodes because of some issues with live-migration on different CPUs). All the...

Hey there I'm experiencing a very weird issue with my Proxmox cluster (version 7.2-7). Everything is working just fine with 2 nodes, but when the third one is up then corosync stops working. This caused me a lot of troubles to have the third node join the cluster, until I restarted corosync on...

Hi guys! I stucked and need help. I have cluster (8 nodes) and tried add vLAN for corosync. When I modified corosync.conf file on non-master node, new file not modified on another nodes, but when I modified corosync.conf on master node, and restarted corosync service system rewrite file (delete...

Hi all, We have 12 node cluster with 6x ceph nodes and 6x compute nodes.(ceph nodes not running any vms). corosync connected via two links. one dedicated link and one shared (mgmt) link. Ceph configured with dedicated backend sync network as well We are changing some of the switch config and...

We need to replace a 10Gbe switch that is responsible for Link 0 in our cluster. The switch is failing lately with several unscheduled reboots. Every time the switch rebooted, our whole cluster went down and the individual nodes rebooted even though we have another two rings in the cluster...

Updated a Ceph cluster to PVE 7.2 without any issues. I've just noticed I'm using the wrong network/subnet for the Ceph public, private and Corosync networks. It seems my searching skills are failing me on how to re-IP Ceph & Corosync networks. Any URLs to research this issue? Thanks for...

Hey all. There seems to be two bugs regarding clustering setup and IPv6 addresses... 1. If you decide to use custom fe80:: addresses on a vlan/other interface, it may default to the primary network interface regardless (i.e. vmbr0 vs vlan###). 2. If you use a routed address, and it has a :: in...

Please help. Cluster stopped working. After rebooting the server vm does not start. From the console, too, it is not possible to launch them. pvecm status Cluster information ------------------- Name: asodesk Config Version: 52 Transport: knet Secure auth: on Quorum...

Hello Everyone, Right now I am finally jumping into my Proxmox Ceph Cluster Project I have been waiting to work on for months now. So far, things have been going smoothly in terms of getting the Cluster created, however I am somewhat unsure as to whether I have a proper understanding of the...

Hello guys I had a problem using proxmox in my Debian machine. my problem are in the web GUI when I want to create a VM it shows a warning that the node seems to be offline like this image. but if I navigate to the node information it says online and have uptime like this image. and this...

Hi, our new cluster is being prepaired for use and while slowly starting to use the cluster i see some messages in syslog: Dec 25 06:27:52 prxa06 pmxcfs[4868]: [dcdb] notice: data verification successful Dec 25 06:34:26 prxa06 corosync[5041]: [TOTEM ] Retransmit List: b819f Dec 25 06:35:35...

Hey all, I observed a strange reboot off all my cluster nodes as soon as on one specific host cororsync is restarted or this host rebooted. I have 7 hosts in one cluster Corosync has 2 links configured. ring0 is on a separate network on separate switch. ring1 is shared as VLAN over 10G fiber...

Currently running 4 node Promox cluster 5.4-15 with Ceph and trying to upgrade to Proxmox 6 and then hopefully Proxmox 7. I have followed all the instructions documented on your site including https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0#Cluster:_always_upgrade_to_Corosync_3_first The...

SCROLL TO THE END FOR AN EXAMPLE ADD knet_link_priority: <value> TO YOUR /etc/pve/corosync.conf FILE UNDER THE TOTEM DIRECTIVE AND EACH RESPECTIVE INTERFACE SUBDIRECTIVE Here is the guide on creating a separate cluster network: https://pve.proxmox.com/wiki/Separate_Cluster_Network MY OBJECTIVE...

What’s the expected behavior here? I have a 3-node cluster with dedicated physical corosync network, and a 2nd faster network for storage and networking. The corosync network is configured to failover to the fast network if interrupted. High availability is configured on guests with shared...