Fault tolerance scheme for distributed hyperlink database

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

Reexamination Certificate

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Reexamination Certificate

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07627777

ABSTRACT:
Fault tolerance is provided for a database of hyperlinks distributed across multiple machines, such as a scalable hyperlink store. The fault tolerance enables the distributed database to continue operating, with brief interruptions, even when some of the machines in the cluster have failed. A primary database is provided for normal operation, and a secondary database is provided for operation in the presence of failures.

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