Hi Andreas,
thanks for your input. For the first time we used checkmk as dockerimage, we did the ressource setup equal to the normal vm which had no performace issues till now.
In front of your comment i gave the server more cores and memory. From 4 to 8 cores and 6 GB Ram to 12 GB Ram. From Friday till now, there are no stale services on this slave.
So far so good but one of my colluege is not really happy with this, he say this setup is too heavy for simple monitoring use case. How did you see that? Are there any recommendations for performance setups in docker environments?