I am running a 3 node VPS on vps.net and am having a few weird CPU / Memory usage issues. The box is running the debian binary of Hudson CI, HAProxy and Heartbeat. Over the last week I have been getting various high loads, resulting in the VPS shutting itself down.
When I looked at the monitoring for the server the first time it claimed Hudson was responsible, so I turned it off an let the box run for a day or so until again it failed. This time monitoring claims heartbeat was to blame.