Scala Reactive Programming

Supervise an Actor

In the Akka Toolkit, an Actor supervises its child Actors automatically. When a child Actor crashes or fails to do its computation, it informs its status to its supervisor or parent Actor. Then, the parent Actor will take a decision and perform one of the following actions on that Actor only, or on all of its Actors:

• Resume: It resumes only the affected Actor or all of its subordinate Actors
• Restart: It restarts only the affected Actor or all of its subordinate Actors
• Stop: It stops only the affected Actor or all of its subordinate Actors permanently
• Escalate: If it cannot decide what to do, it escalates to its supervisor Actor about the failure and fails itself

The supervisor Actor decides what to do on only the affected ...