On Tue, Jul 2, 2013 at 9:47 AM, Michael Tinsay <[email protected]> wrote: > I have this baffling situation... Our consultants are installing their very > expensive piece of Java app running under Tomcat and RHEL 6. The whole > thing is in a VM guest. Here's the thing, their app segfaults if the VM is > a KVM guest running under a RHEL 6 host (and even an Ubuntu 12.04 host). > They claim (I wasn't there personally) that their product runs ok for the > same VM guest image running under VMWare ESX. > > Has anybody run into a similar situation? Is there a techincal explanation > of why a Java app would segfault if the VM host is KVM as against an ESX > host?
My wild guess: Java memory ballooning differently in KVM versus ESX. You might have to tune the KVM memory ballooning in your VM (I'm guessing you're using libvirt, right, given that you're on RHEL?) Also, check the other obvious suspects (e.g. Tomcat memory settings, badly-set OS sysctls, open file limits and the like.) Cheers, Zakame -- Zak B. Elep || zakame.net 1486 7957 454D E529 E4F1 F75E 5787 B1FD FA53 851D _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph
