Metadata backup and recovery method, device, electronic device, and storage medium
By storing metadata tables in distributed database computing nodes and updating metadata from DDL logs, the problem of low recovery and reconstruction efficiency of computing nodes is solved, an efficient and accurate recovery process is achieved, and data consistency is ensured.
CN114756408BActive Publication Date: 2025-10-10ZETUO TECH (SHENZHEN) CO LTD
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Patent Information
- Application Number
- CN202210461427.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-28
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2042-04-28
AI Technical Summary
Technical Problem
The recovery and reconstruction process of distributed database computing nodes is inefficient and complex, and existing technologies are difficult to implement efficiently.
Method used
By storing metadata tables in computing nodes, using coordinate data to record the replication location in DDL logs, pulling DDL logs from metadata nodes and executing DDL commands to update local metadata, and combining full and incremental backups, computing nodes can be restored and rebuilt.
Benefits of technology
It enables convenient and accurate recovery of computing nodes, ensures consistency of metadata and data versions of storage nodes, and improves recovery efficiency and ease of operation.
✦ Generated by Eureka AI based on patent content.
Abstract
Embodiments of the present application disclose a metadata backup recovery method and device, electronic equipment and a storage medium, wherein the method is applied to a computing node in a distributed database management system, comprising: starting the computing node, the computing node storing a metadata table, used for recording a replication position of the computing node in a DDL log through coordinate data; pulling the DDL log from a metadata node according to the coordinate data, executing a DDL command in the DDL log to update local metadata of the computing node, and updating the coordinate data of the metadata table, so that the recovery and reconstruction of the distributed database computing node can be conveniently and accurately realized by using the local transaction processing capability of the computing node.
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