Treatment of bleeding gastroduodenal ulcer

A large distributed enterprise includes computing resources that are organized into one or more managed regions, each region being managed by a management server servicing one or more gateway machines, with each gateway machine servicing a plurality of endpoint machines. A method of diagnosing a fault in such an environment begins by deploying a management infrastructure throughout the computer network, the management infrastructure including a runtime environment at each of the endpoint machines. In response to occurrence of the fault, a software agent is selected, the software agent being executable by the runtime environment at an endpoint machine. The selected software agent is then deployed into the computer network to diagnosis the fault. If the location of the fault is indeterminate, the software agent migrates to the location by gathering information about the fault as it traverses the network.