Abstract: Techniques described and suggested herein include systems and methods for updating, adding, deleting, managing, and otherwise manipulating instance data across multiple virtual instances in an addressable fashion. For example, a customer may control or otherwise be associated with a fleet of virtual instances running on one or more hosts of a computing resource service provider. The described techniques enable customers, or other entities, to update instance data related to arbitrarily defined groups of the fleet using, e.g., tags or other common identifiers, so as to, e.g., alter operational characteristics of some or all of a given fleet of virtual instances without necessitating individual alteration of each instance.

Abstract: Techniques are disclosed for determining whether a computing node or a virtual machine instance executing on that computing node that is part of a web services platform is in an impaired condition or a normal condition. In embodiments, a status monitor of the web services platform obtains information about the status of the computing node or instance from multiple sources, aggregates this information to determine a cause of impairment and notifies a corresponding customer of this cause. In embodiments, the status monitor may also determine a possible remedy to this impairment and implement this remedy without customer input.

Abstract: Methods and apparatus for efficient monitoring of network fleets are described. A list of network addresses of a set of hosts at which resources are to be monitored from a monitoring server of a provider network may be received at the monitoring server. The monitoring server may initiate establishment of a persistent network connection to a monitoring agent installed at a monitored host. A plurality of health messages from the monitoring agent may be obtained via the connection, including a host status entry for the monitored host and a resource status entry for at least one resource configured at the monitored host. A representation of the health messages may be saved in a repository for analysis.