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Munin is tool for collecting various information from system and showing them in charts. Spectrum 2 contains munin plugin which can be used to generate useful charts in Munin.


There’s Munin plugin installed in by default in /usr/share/munin/plugins/spectrum2_. You have to create symlinks pointing to that files in /etc/munin/plugins name like this:

Symlink name Meaning
spectrum2_uptime Uptime
spectrum2_backends_count Backends count
spectrum2_crashed_backends_count Crashed backends count
spectrum2_online Online users count
spectrum2_messages Total messages send over spectrum since the last restart
spectrum2_messages_sec Messages send per second over spectrum transports
spectrum2_memory Memory usage of transports
spectrum2_average_memory_per_user Average memory usage of per user