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A Hybrid Method for Concurrent Updates on Disconnected Databases in Mobile Computing Environments
| Content Provider | CiteSeerX |
|---|---|
| Author | Loh, Yin-Huei Hara, Takahiro Tsukamoto, Masahiko Nishio, Shojiro |
| Abstract | In mobile computing environments, necessary data is replicated on mobile hosts during disconnections to improve availability. In order to minimize problems of inconsistency among data copies while maximizing the data update ability on disconnected sites, we propose an approach which controls database updates based on the probability that transactions occur and the duration of disconnection time between the sites. We derive a formula to choose the appropriate method between token and optimistic methods, and show that the proposed method works well even when the disconnection time deviates from the expected value. Keywords Concurrency control, mobile computing environments, disconnected operations, database replication. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Mobile Computing Environment Data Update Ability Mobile Host Disconnection Time Hybrid Method Database Update Data Copy Keywords Concurrency Control Optimistic Method Disconnected Database Database Replication Concurrent Update Necessary Data Appropriate Method |
| Content Type | Text |
