CONTINUOUS FEEDBACK-CONTROLLED DEPLOYMENT OF MESSAGE TRANSFORMS IN A DISTRIBUTED MESSAGING SYSTEM

The present invention solves the disadvantages of the prior art and provides a distributed messaging system supporting stateful subscriptions. A stateful publish-subscribe system extends the functionality of the content-based approach to include more general state-valued expressions. A plurality of...

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Bibliographic Details
Main Authors GINIS ROMAN, STROM ROBERT EVAN
Format Patent
LanguageEnglish
Published 02.10.2008
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The present invention solves the disadvantages of the prior art and provides a distributed messaging system supporting stateful subscriptions. A stateful publish-subscribe system extends the functionality of the content-based approach to include more general state-valued expressions. A plurality of broker machines is provided to deliver messages sent by publishing clients toward subscribing clients based upon the contents of the messages and stateful transformations requested by the subscribing clients. Subscription specifications are analyzed by a compiler and converted into a collection of message transforms and views. A deployment service component deploys tasks to optimize system performance. A monitoring services component detects a possible need to reconfigure. A performance optimization service component computes new assignment of transforms. A continuous deployment service implements a redeployment protocol that installs changes to transform placement while the existing publish-subscribe system continues to operate.
Bibliography:Application Number: US20080115798