Enhancing the Availability of Networked Database Services by Replication and Consistency Maintenance
نویسندگان
چکیده
We describe an operational middleware platform for maintaining the consistency of replicated data objects, called COPla (Common Object Platform). It supports both eager and lazy update propagation for replicated data in networked relational databases. The purpose of replication is to enhance the availability of data objects and services in distributed database networks. Orthogonal to recovery strategies of backed-up snapshots, logs and other measures to alleviate database downtimes, COPla caters for high availability during downtimes of parts of the network by supporting a range of different consistency modes for distributed replications of critical data objects.
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