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--- tools:instrumentation [2014-03-22 05:53]
mitar
+++ tools:instrumentation [2014-03-22 05:54] (current)
mitar Fixing links to a bit of self promotion. :-)
@@ Line 1: / Line 1: @@
+# Monitoring and instrumentation
+* **Monitoring** is the process of checking if a given system works as expected
+* **Instrumentation** is the process of collecting data from a device (link utilisation, CPU utilisation, RAM, disk, …)
+The two are related to each other.
+## Monitoring tools
+TODO
+ * Nagios
+ * Zabbix
+ * Icinga
+ * [[https://dev.wlan-si.net/wiki/Nodewatcher|nodewatcher]], an open source network planning, deployment, monitoring and maintenance platform with emphasis on community.
+## Instrumentation tools
+ * Munin
+### SNMP
+TODO
+Alternative is to use a simpler channel like [[http://nodewatcher.readthedocs.org/en/latest/telemetry.html |HTTP]]. SNMP is sometimes too big/bloated for small routers.
+### Rrdtool
+[[http://oss.oetiker.ch/rrdtool/|Round-robin database engine]]
+Or use some client-side drawing library, like [[https://github.com/wlanslovenija/django-datastream|django-datastream]].
+### Collectd
+[[https://collectd.org/|Collectd]] is a nice little program that is able to collect various data on a system, and either write them to a rrdtool database, or send them via the network (or both).
+It runs on OpenWRT: [[http://wiki.openwrt.org/doc/howto/statistic.collectd|statistic.collectd]]. This is quite nice with the network-based reporting of the collected data (because you probably don't want to store rrdtool database directly on your OpenWRT routers).

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