Maximize Database Reliability

What do we mean by reliability?

Database system reliability encompasses protection from loss of database availability, safeguards on data integrity, and resistance to database corruption caused by application software defects. eXtremeDB was designed from the beginning to maximize database reliability.

Features to look for if reliability matters

eXtremeDB’s transactions support the ACID properties. This feature safeguards data integrity by guaranteeing that interdependent operations either complete together or are cancelled together. Learn more about this and other key features. 

Transaction logging provides recoverability. While it might seem that transaction logging re-introduces on-disk storage overhead into in-memory databases (IMDS), McObject’s benchmark test confirms that an IMDS with transaction logging still outperforms a traditional “on-disk” DBMS performing the same tasks, even when the on-disk database is fully cached.

Using non-volatile memory as storage, in-memory databases gain durability while keeping high performance. (For more in this topic, please review McObject’s white paper, Database Persistence, Without the Performance Penalty.)

eXtremeDB’s high availability option ensures continuous database operation even in the face of hardware or software failure. eXtremeDB’s HA support includes both synchronous (2-safe) and asynchronous (1-safe) replication, with application-directed failover.

eXtremeDB’s clustering capability adds reliability via the presence of multiple, synchronized database instances maintained on two or more cluster nodes.

The database runtime implements many verification traps and consistency checks. After application debugging, the optimized version of the eXtremeDB runtime can be used, removing traps and internal checks, and restoring valuable clock cycles. In addition, cyclic redundancy check (CRC) is built into the backup-and-restore feature for in-memory databases, to ensure the database was written in its entirety when saved, and has not been corrupted.  Learn more in our online documentation (opens in a new tab).

An additional benefit of using cyclic redundancy check is to detect unauthorized tampering with the database contents (without going through the eXtremeDB run-time). 

eXtremeDB’s native C/C++ API is type-safe, so that any errors in data-typing are caught at compile time.  Read Toward self-diagnostic APIs for embedded systems (opens in a new tab), by McObject CEO Steve Graves, or visit our online documentation (opens in a new tab) for more detailed information on this topic.

eXtremeDB multi-layered security offers AES encryption and employs a user-provided cipher to prevent access or tampering. The Secure Sockets Layer (SSL) and Transport Layer Security (TLS) is supported in all communications (client/server, High Availability and Cluster).

eXtremeDB’s Active Replication Fabric has the capability to replicate data from the edge to the server, potentially through many tiers. It will intelligently queue data during network malfunctions or outages for later synchronization, and offers reliable database management for IoT systems.

Used in systems that cannot afford to fail, from nuclear power plants to military aircraft.

eXtremeDB sets the standard in database management system reliability.  Industry leaders around the world depend on eXtremeDB for reliable embedded database management.