What Is RocksDB, And Why Is Facebook Open-Sourcing It?

Facebook announced that it is open-sourcing its RocksDB embeddable, persistent key-value store, which enables fast storage and global, real-time data fetching of the social network’s massive cache of user data.

The social network first made the announcement at its Data @ Scale conference last week, and Engineer Dhruba Borthakur offered more details in a note on the Facebook Engineering page.

Borthakur explained why Facebook is open-sourcing RocksDB:

Every time one of the 1.2 billion people who use Facebook visits the site, they see a completely unique, dynamically generated homepage.

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