Fine-granularity Locking and Client-Based Logging for Distributed Architectures

Euthimios Panagos, Alexandros Biliris, H. V. Jagadish, Rajeev Rastogi

Abstract: We present algorithms for fine-granularity locking and clientbased logging where all transactional facilities in a distributed clientserver architecture are provided locally. Multiple clients are allowed to concurrently modify different objects on the same page without synchronizing their updates. Each client has its own log disk where all log records for updates to locally cached data are written. Transaction rollback and client crash recovery are handled exclusively by the clients and local logs are not merged at any time. Clients can take checkpoints independently, and client clocks do not have to be synchronized.