Advanced Help in Munin API
The latest Munin API update includes online help in Drupal advanced_help format, with explanations about Munin API, Munin, RRDtool and MRTG ; hook information for developers of business metrics, and more.
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Munin installation tips
What to do if your Drupal Munin graphs do not appear ?
If munin-node starts before Apache (NGinx, etc) is ready, the munin-drupal plugin won't be able to connect and provide the needed config to munin-node.
Memory vs Hits: the APC plugin split
The Munin APC plugin used to display SMA and Cache info on the same graph, meaning RAM metrics coexisted with hit metrics, like hits, misses, insertions and deletions. Not such a great idea...
Drupal Business metrics
Drupal enterprise-class applications and web sites have business-specific metrics to observe: Munin API offers a very simple way to write custom plugins, to monitor exactly the metrics needed by marketing or quality.
Munin API or d.o./project/munin ?
Another Munin plugin exists on drupal.org. Munin API is an independent implementation, not derived from the existing project, and strongly differing in architectural choices:
Contributing to Munin API
The development wiki is at http://wiki.audean.com/dr/munin
Just ask for an Audean wiki account on the OSInet contact form if you want to submit suggestions, requests, or work along.
Munin Watchdog service
Drupal can provide a Munin heartbeat check too: Munin API can log events if the Munin probe interval deviates from the expected, with 2 levels of severity depending on the deviation: one missed probe could trigger a warning and two a critical.
Munin API
This module is an API-type Drupal module to help other modules expose their internal instrumentation to Munin, mostly used by sub-modules and custom code to expose business metrics.
Durée d'exécution des fonctions de chaînes PHP
En PHP, on se pose rarement la question de la durée d'exécution d'une fonction sur une simple chaîne. Mais regardons la durée d'opérations courantes sur une chaîne d'environ 1 Mo...
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