Rackspace Us, Inc.

Matthew Charles Dietz

Paul Voccio

Trey Eugene Morris

Gregory Lee Holt

John A Dickinson

Charles B Thier

Alexander Leonard Walsh

Antony Joel Messerli

Vishvananda Ishaya

Jason LuVern Kolker

Edward Leafe

Ziad Sawalha

William Randolph Mathews, Iv

Christopher James Behrens

Yogeshwar Srikrishnan

Jason Kölker

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

An example system for bridging between networks includes a first server that launches a first virtual machine in a first network. The system includes a first network controller that is coupled to the first network and sends a request for a bridge between the first network and a second network. The system also includes a second server that launches a second virtual machine in the second network. The system further includes a second network controller that is coupled to the second network, receives the request for the bridge, and in response to the request, creates the bridge between the first and second networks. The bridge enables the first virtual machine in the first network to communicate with the second virtual machine in the second network.

Software-defined multinetwork bridge

A system and methods are provided for distributed tracing in a distributed application. In one embodiment, a method includes observing a plurality of messages sent and received among components of the distributed application, generating a probabilistic model of a call flow from observed messages of the distributed system, and constructing a call flow graph based on the probabilistic model for the distributed application. Distributed tracing may include observing messages by performing the subscription-based observation techniques and operations to receive, message traces describing messages being communicated among components of the distributed application. In this regard, the tracing service may merge message traces from different instrumentation points with message traces obtained by observing message queues to generate a probabilistic model and call flow graph. A distributed application developer or other relevant user may benefit in efficiently and effectively tracking down a cause of an abnormal behavior or analyzing performance profiles.

Methods and systems of distributed tracing

A system and methods are provided for function-specific tracing of a program. In one embodiment, a method includes generating a trace profile identifying one or more functions of a target program, wherein the trace profile identifies one or more functions to trace and depth of tracing for each function to be traced, loading the trace profile and the target program, identifying traced functions in the target program based on the trace profile, patching the target program to call a trace parameter for one or more functions, wherein traced functions are declared at runtime, and observing function calls for traced functions of the application. In this regard, individual functions are traced and debugged on a function-by-function basis without modifying the code or pre-arranging functions so they are traceable. As such, the scope of tracing may be dynamically limited to yield only information that is desired.

Methods and systems of function-specific tracing

A system for providing network control and resource management includes a database storing a plurality of network resources. The system also includes a network controller that receives a request for a network resource. The network controller may include an resource manager that determines, based on the request, a set of available network resources from the plurality of network resources. The resource manager may provide the set of available network resources to a client and update the database based on providing the set of available network resources.

Network controller with integrated resource management capability

A system and methods are provided for generating a billing feed for a distributed network system and reselling resources of the distributed network system. In one embodiment, a method includes observing a plurality of messages sent and received among components of the distributed network system, generating a call flow graph based on the plurality of messages of the distributed network system, and outputting a billing feed for the distributed network based on the call flow graph, to provide a billing feed including one or more billable events. billable events may be are based on one or more of received requests, underlying resource usage, time of usage, scope of usage. In this regard, the system may provide for one or more models of reselling resources of a distributed network system.

Methods and systems of generating a billing feed of a distributed network

Growing community of inventors

San Antonio, TX, United States of America

Matthew Charles Dietz