Configuration for Akka dispatcher that contains low priority threads.

application.conf

# Low priority threads protects system from CPU starvation.
low-priority-threads-dispatcher {
  # For more details please see documentation of this class.
  type = akka.dispatch.PriorityThreadsDispatcher

  executor = "thread-pool-executor"

  # Priority of threads in this thread pool, should be between Thread.MIN_PRIORITY (which is 1) and Thread.MAX_PRIORITY (which is 10).
  thread-priority = 1

  thread-pool-executor {
    core-pool-size-min = 0
    core-pool-size-factor = 2.0
    core-pool-size-max = 10
  }
}