[Rack] noisebridge.net apache runaway

[Danny O'Brien]

This has happened before -- tweaking MaxClients sounds a good idea, thanks
for doing this Andy


On Wed, Oct 31, 2012 at 1:20 PM, Andy Isaacson <adi at hexapodia.org> wrote:

> The webserver on noisebridge.net was paging itself to death with a load
> average of 153 and was unable to serve the website.  I killed all the
> apache worker processes and things seem to be back to normal.  We didn't
> have a metrics graphing system installed, so there's not much I can do
> in the post-mortem.  I've installed munin so that we have somewhat more
> data in the future.
>
> The MaxClients parameter at 150 is probably too high for the 2GB of RAM
> we have allocated.  Looks like minimum "PSS" according to smem(1) is
> about 25 MB per apache worker, so I'm going to loewr MaxClients to 50 to
> leave some room for mysqld.
>
> -andy
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