Returns a function which accepts single events or batches of events in a vector and sends them to the Druid Tranquility Server.

Usage:

(druid {:host “druid.example.com”})

Options:

• :host Hostname of Druid Tranquility server. (default: "localhost")
• :port Port at which Druid Tranquility is listening (default: 8200)
• :dataset Dataset name to be given (default: "riemann")

Example:

 (def druid-async
 (batch 100 1/10
   (async-queue!
     :druid-async          ; A name for the forwarder
     {:queue-size     1e4  ; 10,000 events max
      :core-pool-size 5    ; Minimum 5 threads
      :max-pools-size 100} ; Maximum 100 threads
      (druid {:host "localhost"}))))

Post the riemann metrics as datapoints.