A distributed database system based on database migration and its mechanism for concurrency control
✍ Scribed by Takahiro Hara; Kaname Harumoto; Masahiko Tsukamoto; Shojiro Nishio
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 182 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0882-1666
No coin nor oath required. For personal study only.
✦ Synopsis
In this paper, we discuss our proposal of a distributed database system, DB-MAN (distributed database system based on DataBase Migration in ATM Networks), which takes advantage of database migration in virtual local area networks (LANs) of ATM networks. DB-MAN has two notable mechanisms: a mechanism for selecting the transaction processing method and a mechanism for concurrency control with database migration. The former is a mechanism that chooses the more efficient method between two transaction processing methods: the conventional method based on the two-phase commit protocol and our method employing database migration. The latter is a mechanism to prevent the transaction processing throughput from deteriorating in environments where data contention is a significant factor. Then we show simulation results regarding performance comparison between our proposed system and the conventional distributed database system based on the two-phase commit protocol. The obtained results demonstrate that effective use of database migration gives higher performance than that of the conventional system.