Cloud storage data synchronizing framework and implementing method thereof
A data synchronization and implementation method technology, applied in the field of data cloud storage, can solve problems such as system inaccessibility, file system crash, system efficiency bottleneck, etc., to achieve the effect of ensuring data consistency, improving system efficiency, and ensuring final consistency
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[0060] The present invention proposes a high-availability solution for HDFS-dual-center server Namenodes. In order to solve the problem of distributed data consistency in this structure, a data synchronization framework Quorum is constructed. Its theoretical basis is to transform the classic Paxos algorithm to realize the three-machine Paxos algorithm. The implementation of the present invention will be further described below in conjunction with the drawings.
[0061] In order to avoid a single point of failure, realize dual-machine writability, ensure the final consistency of the central server state, and when a certain central server fails, the framework can still provide external read and write services, the present invention designs a data synchronization framework Quorum, which Module diagram such as image 3 Shown.
[0062] In the module diagram of the present invention, there are two central server nodes A and B, which are entities with a relationship equivalent. A (B) T...
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