I've increased the heap available to Jenkins from 512m to 1024m, and I have restarted all of my build nodes. I restarted the server, and so far, so good. I am watching it closely, but I believe it might have been the issue.
On Friday, January 22, 2016 at 5:43:10 PM UTC-6, Taylor Brown wrote: > > > This might not be the appropriate place to ask this, so forgive me if I > should be asking this somewhere else. Any advice on what to look for in our > thread dump would be very helpful! > > In the past couple of weeks, we have started to see our Jenkins server get > into the following state: > 1) It's CPU usage on the server is pegged at about 250% > 2) The web interface will usually load, although sometimes it is slow. > 3) The status of the nodes printed in the left-hand column is very out of > date. It appears that all of our nodes are busy, but when you click on the > jobs that the column reports they are working on, you discover that the job > actually finished many minutes ago (sometimes 30+ minutes). > > I've just upgraded to the latest version, but shortly after it started, it > got into this state again. The CPU usage has been pegged at 250%+ for about > an hour, and now the web UI isn't responding (but luckily I was able to > navigate to /threadDump before it stopped responding) > > > You can see it here: > https://gist.github.com/Taytay/a88fdc72baf745481b86 > > I am not sure what I should be looking for to be honest. I assume that > there is something pretty obvious/abnormal here to explain the high CPU > usage, but I don't know what it is. > > I should mention that our host node does _very_ little. It can only run a > single short-lived job that is responsible for kicking off other downstream > jobs on the actual nodes themselves. So, I wouldn't expect the usage to be > much more than is necessary to drive the engine and web UI. > > Many thanks for any help you can provide. > > Taylor > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/ca361187-ed1e-4ddc-8ffa-622ce75869c7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
