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Shared file system maintenance method and device

A technology for system maintenance and file sharing, applied in the field of communication, can solve problems such as inconsistency of DLM cluster information, and achieve the effect of improving information consistency

Active Publication Date: 2019-08-09
NEW H3C CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this disclosure is to provide a method and device for maintaining a shared file system to solve the problem of information inconsistency in the DLM cluster during the process of restoring the resources of the master node in response to the above-mentioned deficiencies in the prior art

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  • Shared file system maintenance method and device

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them.

[0047] figure 1 A schematic structural diagram of a shared file system provided for this disclosure, such as figure 1As shown, the shared file system includes: a DLM cluster 110 and a storage array 120 , the DLM cluster 110 includes multiple nodes, and each node can access data stored in the storage array 120 . The multiple nodes of the DLM cluster 110 may include recovery master nodes, resource master nodes and multiple non-resource master nodes. The resource master node can store the lock copy of each node, while each non-resource master nod...

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Abstract

The invention provides a shared file system maintenance method and device, and relates to the technical field of communication. The method comprises the steps of receiving update information sent by arecovery main node after the recovery main node competes for a lock resource and sets the recovery main node as a current resource main node, and if the recovery main node breaks down, sending correction information used for synchronizing the current resource main node to a plurality of other non-resource main nodes to the plurality of non-resource main nodes. After receiving update information,if it is determined that the recovery master node has a fault, correction information can be sent to other non-resource main nodes in a broadcast mode; therefore, other non-resource master nodes can synchronize the information of the current resource master node according to the correction information. The problem that part of non-resource master nodes cannot synchronize the information of the current resource master node according to the updating information sent by the recovery master node when the recovery master node breaks down is avoided, and the information consistency of all the nodes in the DLM cluster is improved.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a method and device for maintaining a shared file system. Background technique [0002] The shared file system is a system in which multiple servers in a DLM (Distributed Lock Manager) cluster can access data from the same storage array, where each server in the cluster can be used as a node, specifically including a resource The master node and multiple non-resource master nodes, the resource master node can store the lock copy of each node, and each non-resource master node only keeps the lock copy of the non-resource master node itself. [0003] In related technologies, if the resource master node fails, multiple non-resource master nodes will elect to be the recovery master node, and the recovery master node will send a recovery start message to other non-resource master nodes to notify other non-resource master nodes to start restoring resources. Then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24
CPCH04L41/0654H04L67/10H04L67/1097
Inventor 张端
Owner NEW H3C CLOUD TECH CO LTD