High Performance, Great Compression
MongoRocks is powered by RocksDB, which is known for its high performance and great compression.
Fast, Incremental, Queryable Backups
Rocks-strata is a utility for MongoRocks that enables fast and incremental backups. Not only that, it also lets you query your backups without restoring the full database.
MongoRocks has been running at Parse for a year and a half. Its underlying storage engine, RocksDB, is in production at web scale companies like Facebook, LinkedIn, Netflix, Airbnb and Pinterest (source)
Supported by Percona
Experts at Percona support MongoRocks. Percona Server for MongoDB includes RocksDB storage engine.