Tibco Software Inc.

Dan Leshchiner

Derek L Collison

Dennis R Page

Russell Selph

Matthias M Hanel

Balbhim Mahurkar

Balbhim Mahurka

Steady state data distribution is provided between a client application, a leader machine, and a plurality of replica machines. The distribution comprises the leader machine receiving an operation request from the client application, the leader machine sending the prepare message to each of the plurality of replica machines, the replica machines recording in their logs information on the operation, the replica machines sending acknowledgement messages to the leader machine, and the leader machine sending commit command messages to the replica machines. A new quorum of the replica machines is created by using log information. Replica machines that become part of the new quorum are updated in an efficient manner.

Data replication protocol with efficient update of replica machines

Disclosed are systems and methods for communicating with a sender machine and a receiver machine, and analyzing a bitmask associated with a message to be sent from the sender machine to the receiver machine, such that the bitmask comprises one or more presence bits and one or more absence bits, such that the presence bits indicate that an associated field of the message are included in the message and the absence bits indicate that an associated field of the message are omitted in the message. The systems and methods also dynamically determine compression instructions to compress the bitmask, and provide the compression instructions to the sender machine, wherein the compression instructions reduce size of the bitmask associated with the message to be sent to the receiver machine.

Hierarchical bitmasks for indicating the presence or absence of serialized data fields

Data replication protocol with steady state data distribution and quorum formation

Disclosed are systems and methods for transporting data using shared memory comprising allocating, by one of a plurality of sender application, one or more pages, wherein the one or more pages are stored in a shared memory, wherein the shared memory is partitioned into one or more pages, and writing data, by the sender application, to the allocated one or more pages, wherein a page is either available for use or allocated to the sender applications, wherein the one or more pages become available after the sender application has completed writing the data. The systems and methods further disclose sending a signal, by the sender application, to a receiver application, wherein the signal notifies the receiver application that writing the data to a particular page is complete, reading, by the receiver application, the data from the one or more pages, and de-allocating, by the receiver application, the one or more pages.

Locking and signaling for implementing messaging transports with shared memory

Systems and methods for fast, efficient content-based routing that allow a router to perform true content-based routing without having to de-serialize the data and apply a full content-based filter by determining the exact set of consumers to forward the data onto based on packet headers. A system for fast content-based routing may receive a subscription from a receiver machine and may assign a unique ID associated with the subscription in a router table. The system may then place a ID associated with a particular subscription in a message header if the message corresponds to the subscription. The system may then analyze the router table to determine one or more receiver machines associated with the ID in the header of the message. The system may then send, from a sender machine to one or more receiver machines, one or more messages containing the ID in the header of the message.

Fast content-based routing

Disclosed are systems and methods for efficient matching for content-based addressing wherein the systems and methods may: accept, at a receiver machine, a query; generate, at the receiver machine, a tree structure ordered by one or more fields of the query; analyze, at the receiver machine, a message from the sender machine; search, by the receiver machine, the tree structure using content from one or more fields of the message; determine, by the receiver machine, if the content values of the message match a content value of the query stored in the tree structure; and accept, by the receiver machine, the message if the content value of the message matches one or more content values of the query.

Fast matching for content-based addressing

A method for certified delivery of an outgoing message or messages in a multipoint anonymous, publish/subscribe telecommunications system. The system for utilizing the method and program product is one having at least one publisher () and at least one subscriber (). The method is carried out by first establishing a certified delivery session ledger. Next each outgoing message is labeled with a label including the delivery session name and a sequence number. The labeled outgoing message or messages are then sent to subscribers, and received by a subscriber. Various protocols are described.

Growing community of inventors

Sunnyvale, CA, United States of America

Dan Leshchiner