Method, device and system for handling failures in at least one distributed cluster

Abstract

Embodiments of the present invention provide a method, device and system for handling faults in at least one distributed cluster, at least one distributed cluster includes a first distributed cluster, and the first distributed cluster includes a first Master node and a first Slave A node, a first reference node, and a first standby node serving as a backup of the first Master node, the first standby node receiving a message sent by the first reference node including a message indicating that the first reference node and the first Master node are in a disconnected state The heartbeat message of the first indication information; the first backup node determines that the first reference node and the first Master node are in a disconnected state according to the first indication information; the first backup node sends a message to the first backup node after detecting that the first Master node In the case that the heartbeat message is interrupted, it is determined that the first backup node is also in a disconnected state with the first Master node; the first backup node determines that the first Master node has failed. In the embodiment of the present invention, the fault detection time can be effectively shortened.

Description

technical field [0001] Embodiments of the present invention relate to the field of cluster management, and more specifically, relate to a method, device and system for handling faults in at least one distributed cluster. Background technique [0002] At present, most high availability (High Available, referred to as "HA") distributed clusters are usually centralized with one master (Master node) and multiple slaves (Slave nodes). Among them, the Master node sends heartbeat messages to all Slave nodes in the cluster , each Salve node in the cluster also sends a heartbeat message to the Master node. The Slave node judges whether the Master node fails by detecting the heartbeat message sent by the Master node, and the Master node judges whether the Salve node fails by detecting the heartbeat message sent by the Slave node. [0003] However, there are the following disadvantages in the above failure detection. The Salve node usually considers that the Master node has failed whe...

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Problems solved by technology

[0003] However, there are the following disadvantages in the above fault detection. The Salve node usually considers that the Master node has failed when it has judged that it has not received the heartbeat message from the Master node for many times, and then initiates the process of determining a new node in the cluster. The election strategy of the Master node, therefore, in the current technology, the failure detection time of the Master node is too long

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