class type workload_manager = object .. end
method hello : controller -> unit
Called by the controller when the service is added
method shutdown : unit -> unit
Called by the controller to notify the manager about a shutdown
method adjust : socket_service -> socket_controller -> unit
This function is called by the controller at certain events to
adjust the number of available containers. The manager can
call
start_containers and
stop_containers to change the
system.
The function is called right after the startup to ensure
that there are containers to serve requests. It is also called:
- just after a connection has been accepted and before it is
decided which container will have the chance to accept in the
round
- after the shutdown of a container
Of course, the workload manager is free to adjust the load
at any other time, too, not only when
adjust is called.
method capacity : container_id ->
container_state -> capacity
Computes the capacity, i.e. the number of jobs a certain container
can accept in addition to the existing load.
