Microservices with Azure

Distribution and failover

The Reliable Actors runtime manages scalability and reliability of Actors by distributing Actors throughout the cluster and automatically migrating them from failed nodes to healthy ones when required.

Actors are distributed across the partitions of the Actor Service, and those partitions are distributed across the nodes in a Service Fabric cluster. Each service partition contains a set of Actors. Service Fabric manages distribution and failover of the service partitions.

For example, an Actor service with nine partitions deployed to three nodes using the default Actor partition placement would be distributed like this:

Actor instances distributed among partitions

The partition scheme and key range settings are ...