Stefan de Konink wrote:
>
> Hi,
>
> Today it was the second time Cherokee (0.6.1b1373) had an extremely big
> load around 30. Does anyone have an idea how to debug this issue?
>
> Or might know a cause of this failure?
First of all someone should verify what kind of services
are running on that machine.
It could be useful to run a script to poll load level from /proc
or from uptime(1) and when the load goes up it can append to a text file
the list of processes along with the CPU usage,
i.e. (completely untested):
while sleep 5
do
# get load average (only integer part)
LOADAVG=`uptime | cut -d, -f 3 | cut -d: -f 2 | cut -d. -f 2`
# poll load usage
[ $LOADAVG -lt 4 ] && continue
# ok load usage greater than high water mark
# get process usage
# get date and time
date >> file.txt
# get list of open sockets
netstat -a >> file.txt
# get process and CPU usage
top -d 3 -n 1 -b >> file.txt
done
> There is currently no logging on the webserver (big traffic eater). I'll
> ask if the maintainer can make a graph of the webservers load per 5
> minutes or so.
OK, it could also be a DDoS attack, so maybe enabling logging
could clarify what's really happening.
Greetings.
--
Nick Name: A.D.F.
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