Issue Backup needs so much IO that CT is down

[MH_MUC]

Hi.
I setup vzdump.conf with ionice 8 (which as I understand is only using idle IO) and pigz.
However when compressing the backup with pigz the CTs are almost down. Webservers respond with bad gateway etc.

Is there are chance to give the CTs a higher priority or limit hosts IO?

I also tried starting vzdump from the commandline with ionice -c3, but this didn't help.

Any idea?
Thank you very much.

PS: I am so happy that I have switched from openvz-legacy to proxmox!

 

[BobhWasatch]

Maybe you need to limit how many cores pigz can use. Add "pigz: N" to /etc/vzdump.conf where N < number of cores. See https://pve.proxmox.com/pve-docs/chapter-vzdump.html

 

[MH_MUC]

Hi. Thank you for your reply.
I had that configured as you suggested.

However I found out that rclone is causing the issue. Sorry for that