The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Oct. 28, 2015
International Business Machines Corporation, Armonk, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, product and apparatus for distributing retained messages information in a clustered publish/subscribe system. The method comprising obtaining a set of Retained Message Filters (RMFs) comprising a RMF for each server in the cluster, wherein the RMF representing a set of topics for which retained messages are retained by the server, the RMF being configured to approximate whether the server retains a retained message that matches a subscription; responsive to receiving a subscription request from a client, applying the set of RMFs to the subscription to obtain an indication of a set of servers that potentially retain retained messages that match the subscription; triggering each server in the set of servers to perform retrieval of retained messages that match the subscription; and sending to the client the retained messages retrieved from the servers in the set of servers.