On Tue, May 26, 2009 at 5:10 PM, Deric Abel <da...@americafirst.com> wrote: > Hi, I have an issue with one of my linux guests (sles10) where when we > enable HADR with db2 the HADR db guest interrupt rate jumps from a few > thousand to 300,000 per second. This causes the guest to be using 20-30% of > one IFL, despite doing very little. Has anyone seen this issue before, or > know of a good way to debug it?
Without performance data.... but you probably have db2fmcd running. This has nothing to do with HADR but frequently interferes with it. We're not sure whether it is a bug or design problem with db2fmcd that it sometimes starts to poll. Combined with a kernel bug in SLES10 SP2, it typically causes a lot of overhead. Since db2fmcd has no function in this environment, the easy way out is to stop it (and remove the entry in /etc/inittab ) Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
