Runner <-> Controller

Runner calls Controller through Gearman with a (UTF-8 encoded) JSON payload consisting of the task object.

Example:

{
  id: "466",
  at: "2014-05-26T14:14:42.019Z",
  controller: "try-once",
  func_name: "cache-populate",
  payload: ...
}

Controller <-> Ejector

Controller calls an Ejector through Gearman with a (UTF-8 encoded) JSON payload consisting of just one field, id. The Controller should not alter the ID.

Example:

{ id: "346299" }