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Relaxed currency serializability for middle-tier caching and replication.
| Content Provider | CiteSeerX |
|---|---|
| Author | Philip, A. |
| Abstract | Many applications, such as e-commerce, routinely use copies of data that are not in sync with the database due to heuristic caching strategies used to enhance performance. We study concurrency control for a transactional model that allows update transactions to read out-of-date copies. Each read operation carries a “fresh-ness constraint ” that specifies how fresh a copy must be in order to be read. We offer a definition of correctness for this model and present algorithms to ensure several of the most interesting fresh-ness constraints. We outline a serializability-theoretic correctness proof and present the results of a detailed performance study. 1 |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Middle-tier Caching Relaxed Currency Serializability Update Transaction Transactional Model Many Application Read Operation Out-of-date Copy Heuristic Caching Strategy Present Algorithm Fresh-ness Constraint Use Copy Serializability-theoretic Correctness Proof Interesting Fresh-ness Constraint Detailed Performance Study |
| Content Type | Text |
