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Arbitration method and system of cluster member in cluster system

A cluster system and arbitration method technology, applied in the field of computer storage, can solve problems such as data inconsistency, cluster system split brain, etc., and achieve the effect of protecting consistency and availability

Inactive Publication Date: 2019-04-23
WUHAN FIBERHOME INFORMATION INTEGRATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When members in each sub-cluster still have permission to access shared resources, if corresponding protection measures are not taken, the entire cluster system will cause a split-brain, that is, members of the split sub-clusters think they have access to shared storage resources , may perform read and write operations on the same shared resource separately, resulting in inconsistencies in the data seen by each member

Method used

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  • Arbitration method and system of cluster member in cluster system
  • Arbitration method and system of cluster member in cluster system
  • Arbitration method and system of cluster member in cluster system

Examples

Experimental program
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Embodiment 1

[0044] see figure 1 As shown, the embodiment of the present invention provides an arbitration method for cluster members in a cluster system, including the following steps:

[0045] Introduce a cluster heartbeat device into the cluster system, the cluster heartbeat device is composed of a plurality of heartbeat devices, the cluster members communicate with each other periodically, and periodically write heartbeat information to each heartbeat device;

[0046] The cluster members judge and arbitrate whether they are illegal members according to their connection status with multiple heartbeat devices;

[0047] When a split brain occurs in the cluster system, according to the communication status between the cluster member and other cluster members, and the total number of heartbeats of all cluster members on the cluster heartbeat device, arbitrate whether it is an illegal member;

[0048] If the quorum is an illegal member, the cluster member will automatically exit the cluster...

Embodiment 2

[0061] An embodiment of the present invention provides a cluster system, which includes multiple cluster members and multiple heartbeat devices:

[0062] Cluster members communicate with each other periodically, and periodically write heartbeat information to each heartbeat device;

[0063] When a split-brain occurs in the cluster system, the cluster members are used to: judge and arbitrate whether they are illegal members according to their connection status with multiple heartbeat devices; communication status, and the total number of heartbeats of all cluster members on the cluster heartbeat device, arbitrating whether it is an illegal member; if the arbitration is an illegal member, the cluster member will automatically exit the cluster system.

[0064] In the embodiment of the present invention, if the arbitration is an illegal member, the cluster member will automatically withdraw from the cluster system, so that the illegal member of the cluster member can be arbitrated...

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Abstract

The invention discloses an arbitration method and system of a cluster member in a cluster system, and relates to the technical field of the computer storage. Cluster heartbeat equipment is imported into the cluster system; the cluster member judges whether its own is an illegal member according to a connection estate with multiple heartbeat equipment; when the cluster system is in fissure, arbitrating whether its own is the illegal member according to the communication state of the cluster member with other cluster members and the total heartbeat number of all cluster members on the cluster heartbeat equipment; if arbitrating the cluster member as the illegal member, enabling the cluster member to automatically exit the cluster system. The illegal member in the cluster members can be arbitrated in time, and the consistency and availability of the sharing resource in the cluster environment are effectively protected. The invention further discloses a cluster system.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to an arbitration method and system for cluster members in a cluster system. Background technique [0002] As a cluster system, the cluster file system is widely used in the field of computer storage, and it can provide shared storage resources for applications deployed on cluster members. In the field of cloud computing, advanced functions such as dynamic migration and high availability of virtualized applications are often implemented based on cluster file systems. One of the core technical points of the cluster file system is to provide consistent data view services for each cluster member, that is, the file view seen by the cluster members at any time is the same. However, during the operation of the cluster system, the entire cluster system may be split into two or more sub-clusters due to some abnormal conditions, such as network congestion. At this time, members in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L29/08
CPCH04L41/08H04L43/10H04L67/10
Inventor 张傲张俊彭天彬
Owner WUHAN FIBERHOME INFORMATION INTEGRATION TECH CO LTD