Monitor the load metrics exposed by services.Monitor the health of a REST based service by periodically making requests of the the service.It can be used with any Service Fabric services and performs the following three functions The sample described in this article is watchdog service, not tied to a particular service implementation. Care must be taken when deploying if a v1 watchdog, won't work with a v2 service or the reverse, a v2 watchdog and v1 service. Because of these tight dependencies the watchdogs must be aware of versioning across the services they are observing.

Watchdogs can watch multiple services and detect trends that are occurring across the services. It can observe health and load metrics reports the primary service is emitting or make calls to the primary service and ensure it is receiving correct responses. With Service Fabric a watchdog is nothing more than an auxiliary service that is watching the primary service. On a one box deployment, it is installed by default using port 19081, the code assumes this port.Īs mentioned in Monitor and diagnose Azure Service Fabric applications a watchdog can be part of the monitoring strategy of your application. The sample also uses the Reverse Proxy, which must be installed on the cluster. This sample uses features of C# 7.0 and requires Visual Studio 2017. Discusses the Azure Service Fabric watchdog service sample, how to use it within your cluster and with your services.

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