YottaDB is a multi-process embedded NoSQL key-value DBMS.
The system was originally developed by Fidelity Information Services. It was open-sourced in 2018.
Optimistic Concurrency Control (OCC)
Key/Value
Custom API
Embedded
https://yottadb.com/
https://github.com/YottaDB/YDB
https://yottadb.com/resources/documentation/
@YottaDB
YottaDB, LLC
US
2001
Commercial, Open Source
C
AGPL v3