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+---
+layout: page
+title: Spectrum 2
+---
+
+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.
+
+### Configuration
+
+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
+