A Single Phase Distributed Commit Protocol for Main Memory Database Systems
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
Detection and Recovery Techniques for Database Corruption
IEEE Transactions on Knowledge and Data Engineering
Design and implementation of replication management in main memory DBMS ALTIBASETM
PDCAT'04 Proceedings of the 5th international conference on Parallel and Distributed Computing: applications and Technologies
| Hi-index | 0.00 |
In this paper, we present two schemes for concurrency control and recovery in distributed main-memory databases. In the client-server scheme, clients ship log records in the server, which applies the updates to its database copy. In the shared disk scheme, each site broadcasts its updates to other sites. The above enable our schemes to support concurrent updates to the same page at different sites.Both schemes support an explicit multi-level recovery abstraction for high concurrency, reduced disk I/O by writing only redo log records to disk during normal processing, and use of per-transaction redo and undo logs to reduce contention. Further, we use a fuzzy checkpointing scheme that writes only dirty pages to disk, yet minimally interferes with normal processing, not requiring updaters to even acquire a latch before updating a page.