hi list, I'm new on the list. I've been a happy Jenkins user (and Hudson before) for a couple of years now and never had issues I couldn't fix myself. We use Jenkins at work to build all sorts of projects: java, flash, php, javascript. Most builds are ANT-based.
But now I have a problem: Since a recent upgrade Jenkins has been throwing "java.lang.OutOfMemoryError: Java heap space" after a clean restart within 60 minutes. Setup: Master on Linux (Ubuntu, installed using apt from http://pkg.jenkins-ci.org/debian) - about 50 projects enabled - not a lot of builds being performed (as in: idle most of the time, maybe a couple of builds a day) - most projects poll SVN every 5 minutes - 900M memory allocated to the VM Heap (actually I've just changed that to 1300M) Slave on OSX (java web start) - does builds for most active projects We have one screen running a 'Wall display' continuously. Shutting down this screen does not fix the problem. (I tried since I suspected that it might) We're now on 1.555, but it started before this release. I've done some analysis using VisualVM and made a couple of heap dumps. The heap shows a repeating pattern of about 4 minutes memory increasing by about 300MB, followed by GC sweep that removes most of the allocated objects but adds about 40MB to the bulk that cannot be collected. What I find is that if I take 2 memory snapshots A LOT of String and char[] have been created inbetween (roughly 300000 over a 10 minute timespan) and about half that amount of java.util.HashMap$Entry. This might have nothing to do with the source of the problem, but it is I suspect the SVN polling to have a hand in this, or some other non-build process, as the Heap memory also increases when there are no builds running. Does anyone have a tip on how to resolve this issue? I'm ok with making custom java builds of jenkins myself and have full access to the build machine. Simon -- 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 jenkinsci-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
