Memcached Check pluginhttp://william.leibzon.org/nagios/
This is Memcached Check plugin. It gets stats variables and allows to set thresholds
on their value or their rate of change. It can measure response time, calculate
hitrate, memory utilization and other data. The plugin is based on check_mysqld.pl.
It also returns status variables as perfomance data for further nagios 2.0