Gapless delivery and durable subscriptions in a...

Details Gapless delivery and durable subscriptions in a... Gapless delivery and durable subscriptions in a...

2006-06-30

2009-02-03

Dinh, Khanh (Department: 2151)

Electrical computers and digital processing systems: multicomput

Computer network managing

Network resource allocating

C709S203000, C709S228000, C710S006000, C715S252000

Reexamination Certificate

active

07487246

ABSTRACT:
A content-based publish/subscribe system for providing gapless message delivery from a publishing client to a subscribing client is disclosed. The system includes a plurality of brokers operatively coupled to one another via a network. Each of the brokers include at least one processor and are configured as a publisher-hosting broker, a subscriber-hosting broker or an intermediate broker. The subscriber-hosting broker may be operatively coupled to the publisher-hosting broker via the network through the intermediate broker. At least a portion of the plurality of brokers are configured so as to eliminate a need for persistent storage of messages at the intermediate broker and to substantially guarantee a gapless delivery of one or more messages transmitted by the publishing client to the subscribing client, even in the presence of a failure in the publish/subscribe system.

REFERENCES:
patent: 5970469 (1999-10-01), Scroggie et al.
patent: 6532494 (2003-03-01), Frank et al.
patent: 6658568 (2003-12-01), Ginter et al.

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