Server Hung CGROUP OOM

LXD
1

Hi,

I have 2 node LXD with version 5.5-37534be in cluster mode in OS ubuntu 20.04 and kernel 5.4.0-125-generic,
one of the node hung every day, i check kern.log and found memory Cgroup out of memory

oom hardware
oom hardware1183×820 219 KB

i saw a lot of logs oom in my container

oom-kil gitlab
oom-kil gitlab1224×610 359 KB

i set my container memory limit 4GB and my mistake cause oom in the container, but my host memory usage is low

memory usage host
memory usage host1313×224 44.1 KB

can oom in container cause hung on server host?

Regards,

Mulyadi