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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.:

US 10812578 B1

PDFFull Text
Expired
Date of Patent:
Oct. 20, 2020

Filed:

Jan. 17, 2018

Migration of durable clients in a clustered publish/subscribe system

Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Yoav Tock, Haifa, IL;

Nir Naaman, Haifa, IL;

Avraham Harpaz, Haifa, IL;

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorney:

Ziv Glazberg

Primary Examiner:

Philip J Chea

Assistant Examiner:

Robert B McAdams

Int. Cl.
CPC ...
H04L 29/08 (2006.01); G06F 9/54 (2006.01); H04L 12/24 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 67/1021 (2013.01); G06F 9/542 (2013.01); H04L 41/0816 (2013.01); H04L 67/141 (2013.01); H04L 67/42 (2013.01); G06F 2209/544 (2013.01);
Abstract

Migration of a durable client in a publish/subscribe system from a first server of a cluster to a second server of the cluster. The method comprises the second server receiving subscription information of the durable client; the second server establishing a message queue for the durable client; the second server sending a switch command to all active servers of the cluster; in response to the second server obtaining, from an active server, an acknowledgement of the switch command, the second server inserting a marker to the message queue indicating switching point of the active server; and in response to the second server obtaining, from the first server, a message indicating the first server flushed all messages prior to respective switching points for all active servers, connecting the durable client to the second server and transmitting messages thereto by the second server. As a result, the durable client is migrated from the first server to the second server without disrupting data traffic to uninvolved clients.

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Quick Actions:

Tock, Yoav. (2020). Migration of durable clients in a clustered publish/subscribe system (U.S. Patent No. 10812578). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10812578

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