System.Remote.Monitoring.Carbon

This module lets you periodically flush metrics to a Graphite Carbon backend. Example usage:

main = do
  store <- newStore
  forkCarbon defaultCarbonOptions store

You probably want to include some of the predefined metrics defined in the ekg-core package, by calling e.g. the registerGcMetrics function defined in that package.

Documentation

data CarbonOptions

Options to control how to connect to the Carbon server and how often to flush metrics. The flush interval should match the shortest retention rate of the matching retention periods, or you risk over-riding previous samples.

Constructors

CarbonOptions

Fields

host :: !Text

The hostname or IP address of the server running Carbon.

port :: !Int

Server port of the TCP line receiver interface.

flushInterval :: !Int

The amount of time between sampling EKG metrics and pushing to Carbon.

prefix :: !Text

Prefix to add to all metric names.

suffix :: !Text

Suffix to add to all metric names. This is particularly useful for sending per host stats by settings this value to: takeWhile (/= '.') <$> getHostName, using getHostName from the Network.BSD module in the network package.

Instances

Eq CarbonOptions

Show CarbonOptions

defaultCarbonOptions :: CarbonOptions

Defaults:

• host = "127.0.0.1"
• port = 2003
• flushInterval = 1000
• Empty prefix and suffix.

forkCarbon :: CarbonOptions -> Store -> IO ThreadId

Create a thread that periodically flushes the metrics in Store to Carbon.