Virtual IP address management method and device

Abstract

The invention discloses a virtual IP address management method and device. The method comprises the steps that any node in a cluster periodically executes write-in operation on the same key of an etcd service deployed in the cluster; if the write-in operation is executed successfully, a virtual IP address is set at the node; and if the write-in operation fails to be executed, the node clears the virtual IP address. An etcd service is deployed in a cluster, each node executes write-in operation on the same key of the etcd service, and the etcd service has the characteristic of ensuring that the key and a value are consistent in the cluster, so that only one node successfully writes in at the same moment, a virtual IP address is set for the node with successful write-in, and the virtual IP address is automatically cleared for the node with failed write-in. Therefore, the high-availability switching of the virtual IP is ensured. According to the technical scheme of the invention, even if the node has a network isolation or fault problem, the virtual IP address can be automatically cleared due to the execution failure of the node write-in operation, so that the problem that the virtual IP address coexists on a plurality of nodes due to the network isolation problem and the like can be avoided.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a virtual IP address management method and device. Background technique [0002] With the growth of business scale, more and more applications are deployed on the cluster in consideration of capacity and scalability. When the client accesses the application from the outside, a highly available IP address (virtual IP address) is used to implement the application in the cluster Access. The virtual IP address will not be bound to a single node of the cluster. When a node fails, the virtual IP address will be migrated to other normal nodes, so that external clients still use the virtual IP address to access the application. [0003] At present, there are active and standby nodes in the cluster, and the active node carries a virtual IP address, and the heartbeat information is maintained between the active and standby nodes based on VRRP (Virtual Router Redundancy Protocol, Virtual...

AI Technical Summary

Problems solved by technology

As a result, virtual IP addresses coexist on two nodes, resulting in address conflicts and affecting client access

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