Unsure how this is supposed to play out – especially given the '-' in the name. I'm seeing data but incorrect titles and such at http://stats.musicbrainz.org/mrtg/drraw/drraw.cgi?Mode=view;Template=1262469543.28951;Base=%2Fvar%2Fwww%2Fmrtg%2F%2Flenny_ratelimit-default-python-musicbrainz-ngs-count.rrd

I think this is set, will check back if something's looking funky.

See syswiki, RateLimit and MrtgSetup.

Come back with more questions as and when you have them, of course!

Assigning to Dave for question-answering

The new config is added to git and is on lenny/carl, but:

Issues:

a.) I suppose I need to restart something on lenny, but I'm hesitant to svc -t or svc -h the ratelimit-server without knowing that's the correct thing to do (or which is the correct thing to do, for that matter)
b.) MrtgSetup talks about a RefreshHost command, but it has it in /etc/mrtg, not where it is in /etc/mrtg/bin. To boot, running it as ./RefreshHost from within the bin directory fails at trying to find the lenny config; running it from /etc/mrtg (as 'sudo ./bin/RefreshHost lenny') complains about being unable to find another script that's in bin.

Go for it.

git.musicbrainz.org/sysadmin/ratelimit-server/

If you just want to collect stats without applying any actual limits, see keep_stats_only in RateLimitServer.pm. (It has tests, too! t/*.t).

If you want to expose those stats via snmp (so that they can appear on the graphs), then add something to snmp-agent.pl (search e.g. for picard).

Deploy those changes to carl/lenny using git push / sudo -E git pull, as usual.

Then remodel lenny's mrtg config (see MrtgSetup for how).

(I think there's a bug here - perhaps the ratelimit stats are only collected if lenny is the active host).