Extending local recovery techniques for distributed databases

Abstract

The most frequently used local database system failure recovery techniques are logging , shadowing and differential files. In a distributed database these local system failure recovery techniques may be·utilized for recovery from a single site failure. However, these techniques need to be extended to facilitate continued distributed executions. Various extended local system failure recovery techniques are presented. The results of a comparison of these techniques are shown. It is concluded the deferred data item logging technique proves to be the best for the system under consideration.