Versioned Backups and Index Concurrency Results of Work-in-progress
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2 01 4 Rethinking serializable multiversion concurrency control
Multi-versioned database systems have the potential to significantly increase the amount of concurrency in transaction processing systems because they can avoid reads-write conflicts. Unfortunately, these increases in concurrency usually come at the cost of transaction serializability. If a database user requests full serializability, modern multi-versioned systems significantly constrain their...
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The standard database mechanisms for concurrency control, which include transactions and locking protocols, do not provide the support needed for updating complex geographic data in a multiuser environment. The preferred method to resolve conflicts in GIS systems is to encapsulate the modifications generated by the end users through the use of multiple versions. Multiuser (or versioned) geograp...
متن کاملRethinking serializable multiversion concurrency control
Multi-versioned database systems have the potential to significantly increase the amount of concurrency in transaction processing because they can avoid read-write conflicts. Unfortunately, the increase in concurrency usually comes at the cost of transaction serializability. If a database user requests full serializability, modern multi-versioned systems significantly constrain read-write concu...
متن کاملEffective Optimistic Concurrency Control in Multiversion Object Bases
The use of versioned data has proven its value in many areas of Computer Science including concurrency control. In this paper we examine the use of versioned objects in object bases for the purpose of enhancing concurrency. We provide a framework for discussing multi-version objects which includes fundamental de nitions, the abstraction of objects as automata and a model of object method execut...
متن کاملEeective Optimistic Concurrency Control in Multiversion Object Bases
The use of versioned data has proven its value in many areas of Computer Science including concurrency control. In this paper we examine the use of versioned objects in object bases for the purpose of enhancing concurrency. We provide a framework for discussing multi-version objects which includes fundamental deenitions, the abstraction of objects as automata and a model of object method execut...
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تاریخ انتشار 2007