Daemon for easy but powerful stats aggregation
A network daemon that runs on the Node.js platform and listens for statistics, like counters and timers, sent over UDP or TCP and sends aggregates to one or more pluggable backend services (e.g., Graphite).
Each stat is in its own "bucket". They are not predefined anywhere. Buckets can be named anything that will translate to Graphite (periods make folders, etc)
Each stat will have a value. How it is interpreted depends on modifiers. In general values should be integers.
After the flush interval timeout (defined by
config.flushInterval, default 10 seconds), stats are aggregated and sent to an upstream backend service.
LTSNode.js versions are supported.)
exampleConfig.jsand put it somewhere
node stats.js /path/to/config
The basic line protocol expects metrics to be sent in the format:
So the simplest way to send in metrics from your command line if you have StatsD running with the default UDP server on localhost would be:
echo "foo:1|c" | nc -u -w0 127.0.0.1 8125
There are additional config variables available for debugging:
debug- log exceptions and print out more diagnostic info
dumpMessages- print debug info on incoming messages
For more information, check the
A test framework has been added using node-unit and some custom code to start and manipulate StatsD. Please add tests under test/ for any new features or bug fixes encountered. Testing a live server can be tricky, attempts were made to eliminate race conditions but it may be possible to encounter a stuck state. If doing dev work, a
killall statsdwill kill any stray test servers in the background (don't do this on a production machine!).
Tests can be executed with