public Map<String, Long> size() {
        Map<String, Long> size = new HashMap<>();
        queues.forEach((key, queue) -> size.put(queue.getName(), queue.size()));
        return size;
    }
Monitors and processes messages on the default event queues that Conductor listens on.

<p>The default event queue type is controlled using the property: <code>
conductor.default-event-queue.type</code>
core/src/main/java/com/netflix/conductor/core/events/queue/DefaultEventQueueProcessor.java