Passivation

Actors can be passivated when they are idle after some period of time. Passivated actors(including descendants) are removed from the actor system to free-up resources. When cluster mode is enabled, passivated actors are removed from the entire cluster. To bring back such actors to live, one needs to Spawn them again. By default, all actors are passivated and the passivation time is two minutes.

• To enable passivation use the actor system option WithPassivation(duration time.Duration) when creating the actor system. See actor system options.

• To disable passivation use the actor system option WithPassivationDisabled when creating the actor system. See actor system options.

• One can also enable passivation during the creation of an actor by using the SpawnOption WithPassivateAfter. This will override the system-wide passivation setting. For a long-lived actor, during its creation one can use the SpawnOption WithLongLived.