eXtremeDB Persistence Options
More about Transaction Logging More about Clustering eXtremeDB, an In-Memory & Persistent Database
More about Transaction Logging More about Clustering
eXtremeDB, an In-Memory & Persistent Database
In-Memory Database with Transaction Logging
- Retains all-in-memory nature
- Write-ahead-logging (WAL)
- Control over ‘durability’ ACID property
- Time to reload/restore from a previous session is a function of (A) the size of the database, (B) the size of the log file, if any, and (C) the speed of the media
- Can also be used for fine-grained data sharing
- Can also be used for persistent queue of events
Hybrid/Persistent Database
- Database can be larger than available memory
- Write-ahead-logging (WAL) or “UNDO” logging
- Control over ‘durability’ ACID property
- Constant time to open the database, irrespective of database size