Rackspace Us, Inc.

Alexander Leonard Walsh

Paul Voccio

Antony Joel Messerli

Gregory Lee Holt

John A Dickinson

Charles B Thier

Matthew Charles Dietz

Vishvananda Ishaya

Trey Eugene Morris

Edward Leafe

Daniel Joseph Spraggins

Jason LuVern Kolker

Ziad Sawalha

William Randolph Mathews, Iv

Christopher James Behrens

Jason Mick

Monsyne Michael Dragon

Yogeshwar Srikrishnan

Yogeshwar Srikrishan

In one embodiment, a cloud computing system provides user extensibility by providing a plugin interface for major systems. Plugin interfaces for a compute service, object service, network service, authentication and authorization service, message service, and image service are disclosed. One or more of the plugin interfaces can be used to alter the allocation of virtual to physical resources across multiple services. Compound services and smart allocation facilities are possible with user-directed modification.

Pluggable allocation in a cloud computing system

Several different embodiments of a flexible virtual machine management system are described. The virtual machine management system is used to instantiate, wake, move, sleep, and destroy individual operating environments in a cloud or cluster. In various embodiments, the virtual machine management system uses single messages to perform complex operations, allowing for flexible and scalable use of virtual resources in a cluster while still reducing energy consumption to the minimum possible level. In one preferred embodiment, Wake-on-LAN packets are used as the messages.

Wake-on-LAN and instantiate-on-LAN in a cloud computing system

This disclosure has reference to verifying records of system change events in a distributed network system providing cloud services. In one embodiment, the methods and systems observe system update messages sent and received among components of the distributed network system, generate a record of the state of the object in response to the update messages, and compare the record of the state of the object with information from a periodic system status message to verify the accuracy of the periodic system status message. Advantageously, the present embodiments provide increased reliability for system status tracking, resource management, and billing for consumption of resources in distributed network systems. Additional benefits and advantages of the present embodiments will become evident in the following description.

Methods and systems of tracking and verifying records of system change events in a distributed network system

In one embodiment, the methods and systems may include receiving an Application Program Interface (API) request, assigning a unique identifier to the API request, recording, in association with the unique identifier, receipt time corresponding to a time at which the API request is received, and associating one or more system state changes with the unique identifier. Advantageously, the present embodiments provide a more accurate failure monitoring and associated metrics. Additional benefits and advantages of the present embodiments will become evident in the following description.

Methods and systems of monitoring failures in a distributed network system

Predictive monitoring of objects in a distributed network system providing cloud services is disclosed. In one embodiment, the methods and systems observing one or more update messages sent and received among components of the distributed network system, the update messages comprising information associated with a state of an object on the distributed network system, determine the state of the object in response to the one or more update messages, and reference a predictive object state model to predict occurrence of an artifact in response to the state of the object. Advantageously, the present embodiments provide advanced warning of potential failures in a distributed network systems, which may enable a system administrator or dynamic process to resolve the failure before it ever occurs. Additional benefits and advantages of the present embodiments will become evident in the following description.

Methods and systems of predictive monitoring of objects in a distributed network system

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Waverly, Canada

Alexander Leonard Walsh