Torrus is an SNMP monitoring/graphing system. It's like a much more advanced version of Cricket.
Configuration and setup
It's installed on netmon1001. The configuration directory is /etc/torrus/, with the configuration of data sources and graphing configuration in XML files under /etc/torrus/xmlconfig/. Some global Torrus options are set in /etc/torrus/conf/torrus-siteconfig.pl. Torrus display style has been modified via files in /etc/torrus/templates; these files are needed for it to work as they are referenced from the data sources XML files.
A daily cron job is run to update the list of ports on switches and routers, using the files in /etc/torrus/discovery/. The cron job is in /etc/cron.daily and looks like this:
#!/bin/sh DDXFILES="coreswitches.ddx accessswitches.ddx" TREES="Network" for ddx in $DDXFILES do torrus devdiscover --in=$ddx done for tree in $TREES do torrus compile --tree=$tree done
When Torrus stops working in any way, that's usually because it ends up deadlocked. The web processes and the collector processes work on the same DBM files in /var/lib/torrus/db. Sometimes they get into a deadlock, presumably because some process died and didn't reduce a lock. Here's the steps to resolve the issue:
service torrus-common stop db5.1_recover -h /var/lib/torrus/db sudo -u Debian-torrus torrus compilexml --all --verbose service torrus-common start
More detailed information on how to resolve this can be found here.