XAP
XAP is a distributed in-memory data grid that has high throughput and low latency due to storing all data in memory. As a result, there is no transaction delay between physical I/O so XAP can be applied to distributed applications ranging from financial services to retail. XAP has 3 tiers to its services: Open source, Premium, and Enterprise. The open source edition supports data partitioning, event processing, and distributed execution. It also supports full transactionality by maintaining full ACID compliance.
History
XAP is owned by GigaSpaces, which is an Israeli software company founded in 2000 by Nati Shalom. It was designed to be used to speed up performance or scalability of many existing database systems such as MySQL or MongoDB. XAP has many similarities to NoSQL with regards to the architecture such as using a scale-out model for scalability.
