StatsD supports pluggable server modules that listen for incoming metrics.
StatsD includes the following built-in servers:
- UDP (
udp): Listens for metrics on a UDP port. One UDP packet contains at least one StatsD metric. Multiple metrics can be received in a single packet if separated by the \n character. - TCP (
tcp): Listens for metrics on a TCP port. Metrics can span multiple TCP packets, meaning each metric must be terminated by the \n character when received over TCP.
By default, the udp server will be loaded automatically. Currently only a
single server can be run at once. To select which server is loaded, set
the server configuration variable to the server module to load.
Servers are just npm modules which implement the interface described in
section Server Interface. In order to be able to load the server,
add the module name into the server variable in your config. As the name is also
used in the require directive, you can load one of the provided servers by
giving the relative path (e.g. ./servers/udp).