Microsoft Technology Licensing, LLC

Serkan M Kutan

Shaun David Cox

Setty Venkateshaiah

Vadim Eydelman

Bimal Kumar Mehta

Nirav A Kamdar

Timothy J Rang

Vijay Kishen Hampapur Parthasarathy

Erdinc Basci

Shaun D Cox

A method and system for increasing the computational and network efficiency of presence servers having collections of publications is provided. The presence system uses several techniques that enable a presence server to provide rich presence information without requiring expensive processing. First, the presence system accepts batches of publication updates in a single presence update request. Similarly, the presence system accepts batches of subscription requests. Next, the presence system supports new expiration types for publication update requests that eliminate the need for a publishing user to continually refresh presence information that has not changed. Finally, the presence system accepts access lists that contain membership groups rather than an individual list of users that are to have access to a particular presence collection.

Managing rich presence collections in a single request

A platform for manipulating data associated with defining, deploying, and administering distributed server systems utilizes a structured data model with a flexible replication mechanism, a set of schemas, and an object model to manipulate system topology, configuration (settings), and policies. A scoping mechanism for characteristics of the settings, policies, and resolution is provided in addition to the data model along with an authorization mechanism for single and multi-tenant environments.

Definition configuration and administration of distributed server systems through structured data model

Managing rich presence collections

Disclosed is a rollback-free method for performing multi-step procedures in the presence of possible failure. As the procedure proceeds from its initial state through transitions to its final state, its constituent transitions are monitored for failure. If a failure is detected, then the procedure is 'sidetracked' into a recovery coordination state. From the recovery coordination state, the procedure is logically taken back to its initial state and retried. In this manner, the procedure is shepherded, without rollbacks, through its transitions until it successfully reaches its final state. In a particular embodiment, a multi-step procedure is developed for moving a resource from one resource server to another The steps of the procedure are designed so that all throughout the procedure, both of the resource servers and a directory server are kept synchronized. This allows client requests to proceed without interruption even during the resource movement.

Method and system for rollback-free failure recovery of multi-step procedures

Disclosed is a rollback-free method for performing multi-step procedures in the presence of possible failure. As the procedure proceeds from its initial state through transitions to its final state, its constituent transitions are monitored for failure. If a failure is detected, then the procedure is 'sidetracked' into a recovery coordination state. From the recovery coordination state, the procedure is logically taken back to its initial state and retried. In this manner, the procedure is shepherded, without rollbacks, through its transitions until it successfully reaches its final state. In a particular embodiment, a multi-step procedure is developed for moving a resource from one resource server to another. The steps of the procedure are designed so that all throughout the procedure, both of the resource servers and a directory server are kept synchronized. This allows client requests to proceed without interruption even during the resource movement.

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Seattle, WA, United States of America

Serkan M Kutan