MarkLogic vs TokuMX: What are the differences?
MarkLogic: Schema-agnostic Enterprise NoSQL database technology, coupled w/ powerful search & flexible application services. MarkLogic is the only Enterprise NoSQL database, bringing all the features you need into one unified system: a document-centric, schema-agnostic, structure-aware, clustered, transactional, secure, database server with built-in search and a full suite of application services; TokuMX: A high-performance, concurrent, compressing, drop-in replacement engine for MongoDB. TokuMX is a drop-in replacement for MongoDB, and offers 20X performance improvements, 90% reduction in database size, and support for ACID transactions with MVCC. TokuMX has the same binaries, supports the same drivers, data model, and features of MongoDB, because it shares much of its code with MongoDB.
MarkLogic and TokuMX can be primarily classified as "Databases" tools.
"RDF Triples" is the primary reason why developers consider MarkLogic over the competitors, whereas "When your two-week MongoDB love affair ends, try this" was stated as the key factor in picking TokuMX.
TokuMX is an open source tool with 679 GitHub stars and 90 GitHub forks. Here's a link to TokuMX's open source repository on GitHub.