Cloud database system used for distributed heterogeneous data resource integration
A technology of heterogeneous data and database, applied in the field of cloud database system, can solve the problem of lack of integration technology of distributed heterogeneous information resources
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[0036] The nodes in the system of the present invention are divided into four types, including: metadata service nodes, service nodes, front-end machine nodes, and production machine nodes.
[0037] metadata service node
[0038] Logically, there is only one metadata service node in the system, and there can be multiple metadata service nodes in physical deployment, which serve as mutual backups to improve system availability. The metadata service node provides system services to realize the overall management of the entire cloud database system, including tenant management services, system monitoring services, data directory services, system log services, and system management interfaces.
[0039] Tenant management services mainly provide management services for virtual database administrators in the cloud database system, including registration, approval, and login of virtual database administrators. This embodies the idea of multi-tenancy of the cloud database. Users can...
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