CPU usage on our metrics box is at 100% intermittently causing:
'Internal server error' when rendering Grafana dashboards
The only application running on our machine is Docker with 3 subcontainers
OS Version Ubuntu 16.04 LTS
Release 16.04 (xenial)
Kernel Version 4.4.0-103-generic
Docker Version 17.09.0-ce
CPU 4 cores
Memory 4096 MB
Memory reservation is unlimited
Network adapter mgnt
Backing Filesystem extfs
Supports d_type true
Native Overlay Diff true
Memory swap limit is 2.00GB
Here is a snippet from cAdvisor:
The kworker and ksoftirqd processes change status constently from 'D' to 'R' to 'S'
Are the machine specs correct for this setup?
How can I get the CPU usage to 'normal' levels?