On Nov 30, 2007 6:53 PM, Amos Shapira <amos.shapira at gmail.com> wrote: > On 30/11/2007, Matt Shields <mattboston at gmail.com> wrote: > > Take Xen out of the picture until you learn how heartbeat and > > ipvsadm/ldirectord actually work. You could be having network issues > > because you are hosting it on a virtual server instead of on a real > > server. So it's kinda hard to troubleshoot if you don't even know if > > your configs are broken. Get two crappy boxes that you can load > > everything up on, configure them with heartbeat, get that working > > Thanks for your suggestion. The reason I use Xen (beyond the huge > convenience) is that I don't have spare hardware to play with. > > > where it will failover an IP. then add some other service like > > ipvsadm/ldirectord, and take things one step at a time. Don't try to > > setup everything all at once, it makes it harder to try to debug > > problems. > > That's exactly what (I think) I did - just stuck to instructions from > someone who seems to have been in exactly the same position and got it > working. > > As for network issues - I see the packets coming and going all right. > But I also see programs just crash and burn - I've just executed > BasicSanityCheck on the primary node which appeared to be working > relatively fine a couple of minutes ago (at least it got more > processes running after three minutes than the other node) and that > failed too with core dumps. > > > I'm using CentOS4 and RHEL4 using dag'd rpms on a few of the CentOS > > and RHEL boxes and built from source on some of the other ones. I > > haven't had a chance to try out a CentOS 5 system yet. But as to your > > stability questions, we've been using LVS for about 3 or 4 years now > > and never, ever had stability problems. > > So maybe I should try to get packages from dag, even though there are > ones included in CentOS? > > Which exact version of hearbeat are you using right now? From reading > the history of Linux-HA it appears there was a huge change between 1.x > and 2.x > 2.x -- -matt