Hi Hervé,
This seems a network issue. What is the network setup in this cluster?
What logs in syslog about corosync and pve-cluster?
Don't enable HA until you have a stable cluster quorum.
Cheers
Eneko
El 11/5/20 a las 10:35, Herve Ballans escribió:
Hi everybody,
I would like to take the opportunity at the beginning of this new week
to ask my issue again.
Has anyone had any idea why a such problem occurred, or is this
problem really something new ?
Thanks again,
Hervé
On 07/05/2020 18:28, Herve Ballans wrote:
Hi all,
*Cluster info:*
* 5 nodes (version PVE 6.1-3 at the time the problem occured)
* Ceph rbd storage (Nautilus)
* In production since many years with no major issues
* No specific network problems at the time the problem occured
* Nodes are on the same date (configured with the same ntp server)
*Symptoms:*
Suddenly, last night (around 7 PM), all nodes of our cluster seems to
have rebooted in the same time with no apparent reasons (I mean, we
weren't doing antything on it) !
During the reboot, services "Corosync Cluster Engine" and "Proxmox VE
replication runer" failed. After node rebooted, we are obliged to
start those services manually.
Once rebooted with all pve services, some nodes were in HA lrm status
: old timestamp - dead? while others were in active status or in
wait_for_agent_lock status ?...
Nodes switch states regularly...and it loops back and forth as long
as we don't change the configuration...
In the same time, pve-ha-crm service got unexpected error, as for
example : "Configuration file
'nodes/inf-proxmox6/qemu-server/501.conf' does not exist" even though
the file exists but on an another node !
Such message is probably a consequence of the fencing between nodes
due to the change of status...
*What we have tried until now to stabilize the situation:*
After several investigations and several operations that have failed
to solve anything (in particular a complete upgrade to the latest PVE
version 6.1-11),
we finally removed the HA configuration of all the VM.
Since, the state seems to be stabilized although, obviously, it is
not nominal !
Now, all the nodes are in HA lrm status : idle and sometimes switch
to old timestamp - dead? state, then come back to idle state.
None of them are in "active" state.
Obviously, quorum status is "no quorum"
It will be noted that, as soon as we try to re-activate the HA status
on the VMs, problem occurs again (nodes reboot!) :(
*Question:*
Have you ever experienced such a problem or do you know a way to
restore a correct HA configuration in this case ?
I point out that nodes are currently on version PVE 6.1-11.
I can put some specific logs if useful.
Thanks in advance for your help,
Hervé
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