International Business Machines Corporation

Mark A Huffman

Todd Eric Kaplinger

Ryan M Graham

Timothy M Burns

Hong Ji

Receiving a plurality of concurrent incoming requests from the plurality of services, with each incoming request and each service subscribing to a topic in a shared message queue. The queue is used for: notifying other subscribers when a request to a back-end service is being made; and/or notifying other subscribers when a response from the back-end service is received.

Concurrency reduction through publish-subscribe patterns

Reducing concurrency in a system comprising a plurality of services sending a plurality of concurrent requests to a back-end service through a concurrency reduction service. The concurrency reduction service maps each concurrent incoming request to a key; and determines if the key to which the concurrent incoming request is mapped matches a key mapped from another concurrent incoming request from the plurality of concurrent requests. If the key to which the concurrent incoming request is mapped matches a key mapped from at least one other concurrent incoming request from the plurality of concurrent requests, then the service groups the concurrent incoming request with the at least one other concurrent incoming request to be sent to the back-end service. The concurrency reduction service sends one outgoing request to the back-end service for each of the keys to which the plurality of concurrent incoming requests were mapped.

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Durham, NC, United States of America

Mark A Huffman