Remove special tags necessary for gmond and runit collectors. All
collectors get built. Selection of which collectors to use continues to
happen via parameter.
This catches things like listen overflows, retransmits
and other things that are very useful for retroactive debugging
thus I think it's justified to have it on by default.
Switch to Update using the Collecter Collect interface, due to not knowing all
metricnames in all modules beforehand we can't use Describe and thus the full
Collecter interface.
Remove 'updates', it's meaning varies by module and doesn't add much.
Last login is disabled by default as it's broken on ubuntu 12.04
Interrupts is disabled by default as it's very granular and we'll have total interrupts from /proc/stat
Allow ignoring devices from diskstats, ignore ram and loop devices by default.
Use glog for logging.
This works by using a global array with references to NewXCollector
functions. Each collector appends to that array in it's init() function.
Which file gets build depends on the build tags:
To build only the ganglia exporter, you can do:
go build -tags nonative,ganglia
By default it will build only the native collector.
A collector is a type matching 'Collector' interface.
The following collectors where added:
- NativeCollector wrapping the original functionality (attributes, load)
- GmondCollector scraping ganglia's gmond (based on gmond_exporter)
- MuninCollector scraping munin (based on munin_exporter)
Johannes 'fish' Ziemke