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.

Date of Patent:
Nov. 12, 2019

Filed:

Dec. 15, 2017
Applicant:

Nicira, Inc., Palo Alto, CA (US);

Inventors:

Ziyou Wang, Beijing, CN;

Pankaj Thakkar, Palo Alto, CA (US);

Jianjun Shen, Palo Alto, CA (US);

Yusheng Wang, Beijing, CN;

Donghai Han, Beijing, CN;

Assignee:

NICIRA, INC., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); G06F 9/455 (2018.01); G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
H04L 41/0893 (2013.01); G06F 9/45545 (2013.01); G06F 9/45558 (2013.01); G06F 11/1658 (2013.01); H04L 41/082 (2013.01); G06F 2009/45595 (2013.01); G06F 2201/805 (2013.01);
Abstract

A method is provided for a coordinator to manage cluster membership. In a stable state, the coordinator provides a member list to all the nodes in a node list. The member list includes nodes that are cluster members. The node list includes nodes that are or wish to be members of the cluster. When the node list differs from the member list, the coordinator advances to a reconfiguration state to change the membership of the cluster. In the reconfiguration state, the coordinator sends a reconfiguration request to all the nodes in the node list. When reconfiguration acknowledgements are received from all the nodes within a timeout period, the coordinator updates the member list to be equal to the node list, persists the updated member list, sends a reconfiguration confirmation including the updated member list to all the nodes in the node list, and returns to the stable state.


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