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Galera Cluster vs MapDB: What are the differences?
Galera Cluster: A Multi-Master Cluster based on synchronous replication for MySQL. It’s an easy-to-use, high-availability solution, which provides high system up-time, no data loss and scalability for future growth. You can Keep it up and running 24/7. Putting our expertise to use will help you avoid trial and error; MapDB: Concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. MapDB provides Java Maps, Sets, Lists, Queues and other collections backed by off-heap or on-disk storage. It is a hybrid between java collection framework and embedded database engine. It is free and open-source under Apache license.
Galera Cluster can be classified as a tool in the "Database Cluster Management" category, while MapDB is grouped under "In-Memory Databases".
Some of the features offered by Galera Cluster are:
- True Multi-master Read and write to any node at any time
- Synchronous Replication No slave lag, no data is lost at node crash
- Tightly Coupled All nodes hold the same state
On the other hand, MapDB provides the following key features:
- Concurrency
- Writing database
- Code duplication and not invented here
Galera Cluster is an open source tool with 280 GitHub stars and 118 GitHub forks. Here's a link to Galera Cluster's open source repository on GitHub.
