Microsoft Technology Licensing, LLC

Uri Habusha

Yoel Arnon

Alexander Dadiomov

Raphael Renous

A method and system for coordinating distributed transactions provides atomic processing of distributed transactions on computers in a network with asynchronous message delivery. In a distributed transaction, an application on a first computer initiates a first operation and sends a request message for a second operation to a second application on a remote computer. The first operation and the sending of the request message are performed in a local committed transaction on the first computer. The request message is delivered exactly once and in order to the remote computer and is read by the second application. The performance of the second operation and the sending of an acknowledgment to the first application are performed in a local committed transaction by the second computer. The sending computer and the receiving computer of the request message may be on two different message queuing systems bridged by a connector computer which translates a message from one message queuing system and forwards the message to the destination queue in the other message queuing system.

Method and system for distributed transaction processing with asynchronous message delivery

A method and system for managing the transfer of message packets between first and second nodes in a message queuing system utilizes a session acknowledgment protocol to coordinate the two-way flow of packet transmission. In a session initiation phase, each node specifies a session acknowledgment timeout period and a transmission window size for transmission of message packets thereto. During the session, the first node transmits multiple message packets up to the window size set by the second node and stops to wait for a session acknowledgment from the second computer. The session acknowledgment may piggyback on a message packet sent to the first node. A window-size field in the session acknowledgment allows the receiving node to dynamically adjust the incoming data flow.

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Mitzpe Hoshaya, Israel

Uri Habusha