Method for improving reliability of metadata nodes of cloud databases

A metadata node and metadata technology, applied in the field of cloud databases, can solve problems such as single point failure, avoid inconsistency, achieve real-time consistent update, and ensure uninterrupted effects

Active Publication Date: 2015-04-08
G CLOUD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the unit data service node can simplify the design and implementation of the system, but it will bring the problem of single point failure

Method used

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  • Method for improving reliability of metadata nodes of cloud databases

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Embodiment Construction

[0029] The general idea of ​​the present invention is that a single point will cause data loss and cause usability problems, so metadata needs to be written to multiple servers at the same time. Since every read and write is applied to all servers, more than one copy of data is saved at any time, and more than one server is running at any time, and the possibility of them going offline at the same time is extremely small, so availability does not require By taking extra steps, you can be protected. Because each metadata server is equal, any metadata server going offline will not affect the availability and reliability of the entire metadata server cluster.

[0030] Specifically, the full amount of cloud database metadata is stored in N (N>=1) server nodes, and the data of each metadata server is exactly the same; one of the metadata servers is selected as the master node, and the other N-1 The metadata server acts as a slave node; each slave node monitors the master node to i...

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Abstract

The invention relates to the technical field of cloud databases, in particular to a method for improving the reliability of metadata nodes of cloud databases. The method has the advantages that metadata are simultaneously written in a plurality of servers and are read from all the servers or written in all the servers in each procedure, accordingly, more than one copy of data is stored at any moment, more than one server runs at any moment, the simultaneous offline probability of the servers is extremely low, and the availability can be guaranteed without extra measures; the metadata servers are equal to one another, and accordingly influence on the availability and the reliability of integral metadata server clusters due to an optional offline metadata server can be prevented; the problem of single point of failure can be solved by the aid of the method; the method can be used for processing the metadata of the cloud databases.

Description

technical field [0001] The invention relates to the technical field of cloud databases, in particular to a method for improving the reliability of cloud database metadata nodes. Background technique [0002] The current situation of integration and sharing of information resources of multiple application systems is that each application system generally designs and builds its own applications, processes, and independent data information processing systems. Independence and heterogeneity are the common characteristics of these application systems. Due to the different periods of system design and construction, and the different business models, the informatization construction lacks an effective overall plan, and the phenomenon of repeated construction often occurs. Lack of unified design standards, most systems are built by different manufacturers on different platforms, using different languages ​​for development, information sharing and interaction are difficult, lack of ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L1/22G06F17/30
Inventor 艾建文季统凯
Owner G CLOUD TECH
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