US 2022/0027318 A1 · CLUSTER DATA REPLICATION

Abstract

A cluster data replication system includes a plurality of network elements and controllers. The controllers form a cluster that is able to elect one of the controllers as a master controller with the others being follower controllers. The elected controller updates, responsive to being elected the master controller, state information in a system database of the elected controller to indicate that the elected one of the controllers is the master controller. The master controller includes one or more objects that are enabled in reaction to the state information, and which coordinate replication of changes to the data, system database, and state information from the master to the follower controllers. Each follower controller includes one or more objects able to, in reaction to the state information, disable initiation of the replication of changes to the data, system database and state information by the one or more objects in each follower controller.

Claims21

Dependent claims

A method for cluster data replication, performed by controllers of a cluster of controllers, comprising:

electing one of the controllers of the cluster as a master controller with the other controllers of the cluster being follower controllers;
updating by the elected one of the controllers, in response to being elected the master controller, state information in a system database of the elected controller to indicate that the elected one of the controllers is the master controller;
coordinating, by one or more objects in the master controller that are enabled in reaction to the state information, replication of changes to the data, the system database, and the state information from the master controller to the follower controllers;
and
disabling, by one or more objects in each of the follower controllers in reaction to the state information, initiation of the replication of changes to the data, the system database and the state information by one or more objects in each of the follower controllers.

2 more elements

A cluster data replication system, comprising:

a plurality of network elements;
and
a plurality of controllers coupled over a network to the plurality of network elements, the plurality of controllers forming a cluster of controllers that is able to elect one of the controllers of the cluster as a master controller with the other controllers of the cluster being follower controllers, the elected one of the controllers able to update, in response to being elected the master controller, state information in a system database of the elected controller to indicate that the elected one of the controllers is the master controller, and the master controller including one or more objects that are enabled in reaction to the state information and are able to coordinate replication of changes to the data, the system database, and the state information from the master controller to the follower controllers, and each of the follower controllers including one or more objects able to, in reaction to the state information, disable initiation of the replication of changes to the data, the system database and the state information by the one or more objects in each of the follower controllers.

Dependencies are inferred from the claim text.

Cluster data replication

Life of this patent

Cluster data replication

Life of this patent

Abstract

Claims21