www.links.net is running 0.8.11, is a BSDI 2.0.1 box, and gets about 350K
hits/day with peaks of 350/minute. It's for the most part stable,
with 30-50 children in the pool at peak, but every now and then the
server goes wild and creates as many children as possible, wedging the
machine, slowing down requests (though they still get out). Since I'm
not always on the machine I'm not there to see when it gets wedged what's
going on, so we're trying to develop a script that runs every two minutes
and takes a snapshot of the system. Given that this should include a
load average, a number of concurrent httpd's, and the output of a vmstat
and iostat, is there anything else it should look for?
The logfiles indicate that reverse DNS stopped working (so the log files
just had IP numbers in it) and every 50 hits had a listing like
206.14.10.76 - - [13/Sep/1995:13:26:23 -0700] "NULL" 200 920
Thoughts?
Brian
--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--
brian@organic.com brian@hyperreal.com http://www.[hyperreal,organic].com/
hits/day with peaks of 350/minute. It's for the most part stable,
with 30-50 children in the pool at peak, but every now and then the
server goes wild and creates as many children as possible, wedging the
machine, slowing down requests (though they still get out). Since I'm
not always on the machine I'm not there to see when it gets wedged what's
going on, so we're trying to develop a script that runs every two minutes
and takes a snapshot of the system. Given that this should include a
load average, a number of concurrent httpd's, and the output of a vmstat
and iostat, is there anything else it should look for?
The logfiles indicate that reverse DNS stopped working (so the log files
just had IP numbers in it) and every 50 hits had a listing like
206.14.10.76 - - [13/Sep/1995:13:26:23 -0700] "NULL" 200 920
Thoughts?
Brian
--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--
brian@organic.com brian@hyperreal.com http://www.[hyperreal,organic].com/