[SlugBug] Web Server High Utilisation

[Andy Davidson]

Alan Dawson wrote:

 > I ssh in to it and after an age could log in
 >  w reports high load averages  2 users,  load average: 91.10, 98.21, 
104.29

[...]

 > ps ax | grep apach | wc -l shows 155 processes
 > /var/log/messages shows

[...]

 > I do stop apache and restart it and thing return to normal.


How much ram ?

What are values of ?
Timeout
KeepAlive
MaxKeepAliveRequests
KeepAliveTimeout
MinSpareServers
MaxSpareServers
StartServers
MaxClients
MaxRequestsPerChild

Is your application doing mysql connection pooling ?

What's your peak number of requests/sec ?


And finally, an architecture question - where is this hosted, and how 
much chance do you have to put more machines in ?