Introduction

In the previous chapter, we learned some basic and advanced things about Akka fault tolerance and supervision for actors. In this chapter, we will learn how messages are routed to multiple actors via routers.

Where to use routers

In some situations, we may need a specific type of message routing mechanism for a specific requirement. Some of these situations are listed as follows:

• We want to send messages to the actor that is less busy among other actors of the same type, that is, to the actor with lowest number of messages
• We may want to send messages in a round-robin order to actors, that is, send messages one by one to all actors in a loop
• We may want to send a single message to all the actors in the group
• We may want to redistribute the...