Ceph snapshot kills VM

[hidalgo]

I'm running a 3 node Proxmox cluster with standard ceph installation (2 nodes with osds, 1 node only as quorum). I do backups with https://github.com/EnterpriseVE/eve4pve-barc and after the backup my vms randomly hang. I tried both (cache=writeback, cache=writethrough) without any difference. What's the correct setting and how to avoid the issue?

 

[tschanness]

Does this also happen with the internal Backup tool?

Regards,
Jonas

 

[hidalgo]

Does this also happen with the internal Backup tool?

Regards,
Jonas

I don't know. I don't use it.

 

[tschanness]

Try the internal Backup tool and/or making Ceph Snapshots by hand. Maybe the Problem is in your Backup solution.

Regards,
Jonas

 

[hidalgo]

Try the internal Backup tool and/or making Ceph Snapshots by hand. Maybe the Problem is in your Backup solution.

Regards,
Jonas

I think too, it's in my backup solution. Because I can not reproduce it (not all vms fail always), it doesn't help to try it by hand. Hope I get answer from the developer.

 

[Geoffrey Cheung]

Did you ever solve this?

We are experiencing similar issues using the eve4pve-barc backup solution.