Munin API

OSInet Munin provider is an alternative to the leightweight Munin monitoring project. As such, it comes with:

A more extensive API
More built-in counters for
- core:
  - nodes pub/unpub
  - comments pub/unpub
  - users active/blocked
  - sessions anon/auth
- extensions: APC caching, APC uptime
Munin-monitoring: ability to report on the munin monitoring system activity at produce alerts when probing stops
Code available at http://code.osinet.fr/fgm/drupal_module__munin_api

Feature changes

split APC caching:
- memory use: allocated / in use
- entries: split or not ?
  - hit / miss / insertions
  - entries: cached / deleted
drush-based plugin: plugin is currently web-based, but this is only really necessary for drupal APC
- providers should be in an include file
- API implementation could exist both as a module hook implementation and a drush plugin
generate the “ln -s” series of commands needed to activate plugins

Mobile monitoring (Android / iPhone). Munin templates don't cut it on a phone.
Actual access control for probes (currently just placeholders), in addition to the UI access control

There is actually a book on the topic of Munin plugin development:

Josh Koenig: “but what I really care about is
- my page execution time,
- my per-bootstrap memory consumption,
- my most-frequently run (or longest running) queries”
Moshe Weitzmann (same page) “We need
- cache hit rate from one place,
- slow queries from another,
- watchdog from another”
Guy Saban:
- “Page execution time has been on my radar for a while”
http://content.screencast.com/users/JuanPeralta/folders/Snagit/media/67a47691-fd6b-40ec-9921-4c5c20b63f8a/09.18.2010-04.39.30.png
dgtlmoon: graph your Drupal response times for user logins