Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up.
Sign up to join this community
For Apache, I want to monitor
Monitoring would be done throughout the day, taking a sample every min., in a graphical manner.
If such a tool is not available for free, then any script which can dump this data in a tabular format and I can import that data in CSV format would be sufficient.
Is there any tool for doing that ?
For the busy and idle workers, you can parse it from the status page, something like this:
busy_workers=`lynx -dump http://domain.com/server-status?auto | awk '/BusyWorkers/ { print $2 }'`
idle_workers=`lynx -dump http://domain.com/server-status?auto | awk '/IdleWorkers/ { print $2 }'`
For the waiting requests, you can calculate the numbers of concurrent connections and subtract to MaxClients directive:
concurrent_connections=`netstat -natp | grep httpd | grep ESTABLISHED | grep -v grep | wc -l`
From this result, you can plot a graph with any monitoring tools you want: gmetric (Ganglia), PNP4Nagios, ...
We use cacti with the Apache stats script, basically it parses the Server-Status page and generates the rrd Graph for cacti.
Cacti frontend is in php and stores data in MySQL. Also requires snmp (installation).
