util.statsd

This module allows you to push various metrics from inside the Prosody process to a StatsD-compatible backend.

This module also serves as a reference implementation for a push-based core.statsmanager Statistics Backend. For general information on statistics backends (such as their API) as well as a pull-based/perodic reference implementation, see util.statistics.

Creating a StatsD Backend

local backend = require \"util.statsd\".new(config);

config must be a table with the following keys:

statsd_server (required): IP address of the statsd server to push metrics to. If a hostname is given, that hostname is resolved once at server startup and the IP address is used from then on.
statsd_port (optional): UDP port number to reach statsd at, defaults to

Metrics are pushed to the statsd server immediately, unless the output is corked. When corked, updates to gauges (and only to gauges) are buffered in-memory until the output is uncorked. This allows to use gauges as aggregators during the periodic collection without causing a packet storm at the statsd server.