Metadata sharing management method for multi-storage clusters under wide area network environment

Abstract

The invention discloses a metadata sharing management method for multi-storage clusters under a wide area network environment. The problems that under the wide area network environment, metadata cannot be shared between the multi-storage clusters according to needs, and a global name space cannot provide user views which can be configured dynamically are solved, and an authority control technology, a global synchronization technology and a name space reconstitution technology are used. Efficient and matched file metadata inquire supporting is provided for an upper layer application. The method comprises the steps that a local name space stored locally is read, local metadata are screened according to authority setting rules at regular intervals and then are combined into global metadata information; the global name space stored locally in a catching mode is read, synchronization frequency is determined according to synchronization strategies, and meanwhile the global consistency is maintained according to an improved Paxos protocol; the user views are configured dynamically according view configuration rules. View configuration is an implementation process that a user or the upper layer application hopes to reorganize a global name space directory tree structure according to the metadata information.

Description

technical field [0001] The invention discloses a metadata sharing management method, in particular relates to a metadata sharing management method for multi-storage clusters in a wide area network environment, and belongs to the field of computer technology. Background technique [0002] Cluster is an important research direction of the combination of computer system structure and computer system software. It organizes multiple independent machines into a unified whole, and provides transparent unified access to the outside world; by integrating the computing power and storage capabilities of multiple machine nodes under its jurisdiction, it greatly expands the computing power and storage of the overall system ability; at the same time, good system software design enables the cluster to be easily expanded on a large scale and meet diverse scalability requirements. Through multi-copy technology, the cluster can provide extremely high fault-tolerant performance and meet the re...

AI Technical Summary

Problems solved by technology

However, the research and development and invention of key technologies for metadata sharing of multi-cluster systems in the WAN environment are still lacking.

Images