High CPU for Docker Process even with no activity

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Bernard King

• October 23, 2021 14:27
• Edited

I have a weird situation where the docker process and daemon stay at high CPU util levels even though container processes are at 0% util. Even stranger is after I remove all containers, the CPU utill still stays at the same high levels.  The problem goes away when I kill the docker process but comes back after the first container (doesn't matter which).

Is this normal?  I feel it should not be this high. Any suggestions welcome.

Firewalla gold at 1.973, router mode.

Containers running: Portainer, iperf3, openspeedtest

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  Michael Bierman

  • October 23, 2021 15:27

  Those numbers are for Firewalla itself. They don’t look unusual to me.

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  Firewalla

  • October 23, 2021 16:35

  Tripple make sure the containers are all removed/stopped. very likely something is still running in the containers

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  Bernard King

  • October 23, 2021 17:07

  This continues even after all containers are stopped and removed.

  @michael docket process isnt even ranking in tops list prior to loading first container.

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  Bernard King

  • October 23, 2021 18:00
  • Edited

  Thought I'd a couple before and afters - note no load on containers
  

  After remove all containers, virtually no change if any:
  
  After kill docker process, dockerd seems fine, no CPU pegging.
  

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  Firewalla

  • October 23, 2021 18:24

  You probably need to prune the images a bit. Also, do a df and see if your partition is full due to container images. If everything fails, I think there are ways in docker to remove everything and start fresh. 

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  Bernard King

  • October 23, 2021 21:21

  That did it... sudo docker containers prune  was the magic command. Must have been an old container that was not working properly in the past.

   

  Thanks for all the suggestions!

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