busy little server …
so busy trying to catch up all the requests, just to fail miserably…
And no, the values shown are not percent : we’re talking about unix load ….
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did the poor thing run out of physical memory and start swapping itself to death?
Sorry mate, didn’t saw your comment (can’t even remember the notification…).
In the outcome this was part of the problem, or better, the result. It took me quite a long time figuring out what was going wrong. This server is running on a virtual machine with a relative low amount of RAM. The default settings for an apache webserver (and I never changed them) on ubuntu server are somewhat … errrm … “extended”. So in specific situations when the web server got many connections and started to spawn several worker processes (each one with his own memory footprint) this could lead into the swap-o-rama.
I changed some values e.g. MaxClients, ThreadsPerChild together with KeepAliveTimeout which seems to be the solution for this.