Does the physical hosting your VM have more than 8 CPUs? How many other VMs are running on it? Is the "steal" CPU percentage at zero?
On 2012-10-15 09:01, Jonathan Bayer wrote:
Hi, I'm having a problem with a new VM which we just put into production. We have 4 physical web servers, all running the same webapp. They are all running RHEL 5.6 T This new VM is configured the same way, the only real difference is that it is CentOS instead of RHEL. The apache configs are identical except for IP addresses. The kernel parameters are also as identical as I can tell, by using sysconfig -a and comparing the outputs between the two. All physical servers have 8 cpus, and 48 gig of memory The VM has 8 CPUs, and 30 gig of memory The application goes to a load balancer, which then balances among the systems using a least-connection protocol. All servers have a 1 minute load of around 5, and an average of around 200-300 reqs/second The problem is that when the req/sec starts to climb on the VM, all of a sudden the load average skyrockets to 40-50 or even higher. This kills the server and makes it totally unresponsive. Anybody have any suggestions? Thanks in advance JBB _______________________________________________ Discuss mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
-- Yves. http://www.SollerS.ca/ http://ipv6.SollerS.ca http://blog.zioup.org/ _______________________________________________ Discuss mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
