corosync

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!

Apologies if this isn't the forum for this. I'm testing things out with corosync and I'm confused by "bindnetaddr". I've posted a similar question here: https://serverfault.com/questions/1126948/a-more-detailed-explanation-of-what-bindnetaddr-is Though there's probably not going to be an...

Hallo, bei einem 3-Node-Cluster (A,B,C) und corosync mit jeweils link0 und link1. In der Doku steht, dass bei gleicher Priorität Corosync-Traffic priorisiert nach der link-Reihenfolge geht (niedrigste zuerst), also link0, bei Ausfall dann erst link1. 1. Wenn beim Node A der link0 ausfällt, aber...

I'm looking at using a low powered QDEVICE as my third NODE in a 2 node cluster. I don't have a local connection between the nodes or the qdevice, so I'll be relying on the WAN. Is corosync traffic encrypted, or should I consider protecting it in some way ie a VPN or other tunneling technique?

Hello Dear Proxmox Forum, We had two Proxmox VE nodes and one tie breaker nodes. We have added two additional proxmox VE nodes. When we checked the services, we realized some warnings. HA is looking fine in GUI. But in the CLI, it seems like there is something wrong. We really don't know what...

Greetings everyone, we needed to do some maintenance on a four node cluster. I moved the critical systems off of it but apparently the folks who were actually doing the removal and replacement of a node neglected to remove the noncritical VMs from it before using pvecm to remove it from the...

Hey everyone! Is there a way to display the latency among nodes, meaning from the node you currently are in (either console or WebGUI) to the rest of the nodes of the cluster? Like running the ping command to each node and displaying the end result together in a quick, useful and fashionably...

Hallo, ich habe heute gesehen, dass das Paket openvswitch-switch inzwischen aus den Proxmox Quellen ausgeliefert wird. Am 19.01. und 01.02. scheint das aber nicht der Fall gewesen zu sein. Das Paket aus den PVE Quellen triggert keinen Neustart der OVS Interfaces. Das Paket aus den Debian...

Dear Proxmox Forum I'am currently facing issues with my Proxmox Cluster. I have added SystemB to my cluster created on SystemA and since then I am getting the following error message: "Connection error 596: tls_process_server_certificate: certificate verify failed" I have tried unsuccessfully...

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...