Table of Contents
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
New plugin ideas
- Forum monitoring:
- # fora created
- topics per forum
- contributors per forum
- Content views percentile graph (long tail monitoring)
- RSS feed monitoring
- subscribers per feed anon/logged
- Simplenews monitoring
- subscriber count per newsletter
Other extension ideas
- 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
Documentation
There is actually a book on the topic of Munin plugin development:
Third-party ideas
- 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”
