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Database cluster meta data management method

A management method and metadata technology, applied in the field of database cluster metadata management, can solve problems such as inconsistency of cluster metadata, and achieve the effect of ensuring consistency and improving high availability

Active Publication Date: 2015-04-01
TIANJIN NANKAI UNIV GENERAL DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is a database cluster metadata management method, which improves the existing technical system, thereby solving the problem of cluster metadata inconsistency that may occur in the database cluster metadata management process, improving the high availability of the database cluster, and providing Application system provides higher quality service

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  • Database cluster meta data management method

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Embodiment Construction

[0035] image 3 An example of a database cluster composition diagram in which a metadata management entity is added in the present invention is given, and practical applications can be extended to multiple cluster nodes or multiple metadata management entities according to specific needs.

[0036] Figure 4 A schematic flow description of the implementation of the cluster metadata management method of the present invention is given, the flow is based on image 3 The database cluster composition diagram for adding metadata management entities is shown, which specifically includes the following steps:

[0037]201: The client accesses cluster node 1 and sends a management metadata request.

[0038] 202: The cluster node 1 receives the management metadata request from the client, performs a validity check, and sends the management metadata request to the metadata management entity.

[0039] Checking the validity of the management metadata includes checking the syntax validity a...

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Abstract

The invention provides a database cluster meta data management method. Meta data management commands are serialized; cluster meta data are managed in a unified manner by adding an entity into a database cluster; the entity is connected with each cluster node which forms a cluster and is specially used for meta data management; the changes of the meta data of the cluster are managed in a unified manner. By adopting the method disclosed by the invention, the consistency of the cluster meta data in the database cluster can be ensured, the problem that the cluster meta data are inconsistent when a failure node of the cluster rejoins in the cluster is solved, and information about the cluster meta data are reconstructed on a newly added node when the capacity of the cluster is enlarged, so that the availability of the database cluster is improved.

Description

technical field [0001] The invention relates to a metadata management technology of a database cluster, in particular to a database cluster metadata management method. Background technique [0002] With the rapid development of information technology, the number of users and data volume of an enterprise have shown explosive growth. While the business volume has increased, the rapid growth of database visits and data volume has also increased the processing capacity and computing intensity of the database. , making it impossible for a single-node database to bear. In such a context, a large-scale distributed database cluster has emerged. The so-called database cluster refers to the use of two or more database services to form a virtual single database logical image, which provides transparent data services to clients like a single database. . [0003] In a database system, the definitions of database objects such as tables (Table), indexes (Index), and views (View) are call...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/21G06F16/2365
Inventor 王洪越杨伟伟王雪松武新崔维力
Owner TIANJIN NANKAI UNIV GENERAL DATA TECH