Abstract: A method, apparatus, and system are directed toward managing a system that includes a cluster and an external resource. The external resource may be part of a second cluster that is collocated on the same hardware platforms as the cluster. A proxy resource is used to enforce a dependency relationship between a native resource of the cluster and an external resource, such that a dependency with the proxy resource serves to enforce a dependency with the external resource. The cluster framework may maintain states of the proxy resource, including an offline state, an online-standby state, and an online state. The online-standby indicates that the proxy has been started, but it has not determined that the associated external resource is enabled. The proxy may determine whether the external resource is enabled or disabled and, in response, notify the cluster framework.

Abstract: A method, apparatus, and system are directed toward managing a system that includes a cluster and an external resource. The external resource may be part of a second cluster that is collocated on the same hardware platforms as the cluster. A proxy resource is used to enforce a dependency relationship between a native resource of the cluster and an external resource, such that a dependency with the proxy resource serves to enforce a dependency with the external resource. The cluster framework may maintain states of the proxy resource, including an offline state, an online-standby state, and an online state. The online-standby indicates that the proxy has been started, but it has not determined that the associated external resource is enabled. The proxy may determine whether the external resource is enabled or disabled and, in response, notify the cluster framework.

Abstract: One embodiment of the present invention provides a system that facilitates recovering from failure in a distributed event notification system. During operation, the system detects a failure of an event forwarder, which notifies subscribers of events generated by distributed components in the distributed computing system. In response to detecting the failure, the system restarts the event forwarder, typically on another node in the distributed computing system. Next, the system requests a snapshot of current state from the distributed components. In response to this request, the system subsequently receives events from the distributed components that specify current state of the distributed components, and then forwards the events to subscribers that are registered to be notified of the events.