Forum: CFEngine Help Subject: managing cf-execd children Author: sauer Link to topic: https://cfengine.com/forum/read.php?3,22992,22992#msg-22992
So, I've recently had two incidents which led to a whole bunch of cf-agent and/or cf-promises processes causing CPU starvation. Ignoring the root cause (bugs in cf-agent and cf-promises), I would like a way for cf-execd to directly control the number of children it spawns. Not only would I prefer to avoid taking more heat for these problems :), but as I'd rather not see more than 2-3 cf-agents launched from cf-execd at any given time. Ultimately, this is a system to maintain the computer, not the thing that actually makes money, so I want to limit its potential impact. As such, I was looking for something like maxchildren and maybe even a nice_level option for children fired from cf-execd. It'd be even better if I could define those two parameters based on a class (such as time of day) so that I could, say, restrict children with a persistent class set by cf-agent when it notices that an important job is running - or open up execution based on time of day. But in any event, I'm curious how other people are doing this. If no one's solved (or cared about) this problem prior to now, I guess I'll go create a new feature request. Note, doing this within cf-agent does not meet my goal, as both of the cases where it's been a real problem have been cases where cf-agent execution has not worked as expected. I actually have some controls in cf-agent to kill other long-running agents, but those don't work well when the database wedges or cf-promises goes to an infinite loop in the initial syntax check. :) _______________________________________________ Help-cfengine mailing list [email protected] https://cfengine.org/mailman/listinfo/help-cfengine
