CPU spikes

[pascalandy]

I can observe CPU spikes (it's the container that uses the most CPU over 70 services/containers). I'll experiment with CPU limits and report :_p

[djmaze]

Would be interesting to know what happens there.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[pascalandy]

It was not addressed but it is still an issue IMHO.

[djmaze]

@pascalandy Can you exec into the container when this happens? Or get some docker top output?

[pascalandy]

I can but what are you looking for?

user@vps2:~/workdir# docker top tool-shepherd.1.1f5tigggh7zw9rjqhnp8ut52p
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
root                18647               25831               0                   22:02               ?                   00:00:00            sleep 1m
root                25831               25797               0                   21:53               ?                   00:00:00            /bin/bash /usr/local/bin/shepherd

[djmaze]

Well, if it is the shepherd container which is using the CPU, it would be interesting to see if it is the shepherd script itself or the docker client. I can't really make a picture of this currently.

[pascalandy]

I saw this using prometheus and Graphana. Other containers were running normally.
I now use --cpu-limit to mitigate this.

So let's close this if you prefer.

[djmaze]

Yes, let's close this for now. Feel free to reopen if you get to the cause.