James, ----- "James Thompson" <james at ubercart.org> wrote: > I have just finished deploying two Dell PowerEdge 1950s with CentOS > 5.1 and Virtuozzo 4. GFS is up and running and Virtuozzo is configured > for shared-storage clustering. Everything works adequately but I am > wondering if anyone else has experienced load issues like I am seeing. > I have three VEs/VMs running, two on one node and one on the other > node. One of the VEs on each node are doing very little (one is just > idling with apache and mysql and the other is running rsync every six > hours). The other is running Zimbra. Every so often load will spike on > the node running the Zimbra VE to as high as 2 or 3 then settle down a > short while later to around 0.8 or 0.9. During the spikes the node not > running Zimbra will other see an increase from its idle load of 0.4 or > so up to as high as 1.7 as I have seen. I notice when running top that > dlm_send and dlm_recv will jump to the top fairly frequently when > these load spikes occur. > > What I am wondering is whether anyone else has experienced these kind > of load scenarios with GFS and what they have done to deal with them? > We are hoping to deploy a bit more densely on this setup so I'd like > to make any performance adjustments I can at this stage. > > Thanks, > James Thompson A load of 2-3 isn't much at all... so I don't think I'd call that much of a spike. I have run OpenVZ at work and on a hobby server. In both cases I have about 7 containers... one of them being Zimbra. The other 6 containers are fairly busy so the two machines see a decent amount of load. I am NOT using GFS though. What is dlm_send and dlm_recv part of? GFS? TYL, -- Scott Dowdle 704 Church Street Belgrade, MT 59714 (406)388-0827 [home] (406)994-3931 [work]