FlockDB

FlockDB is an open-source distributed, fault-tolerant graph database for managing wide but shallow network graphs.[3] It was initially used by Twitter to store relationships between users, e.g. followings and favorites. FlockDB differs from other graph databases, e.g. Neo4j in that it is not designed for multi-hop graph traversal but rather for rapid set operations, not unlike the primary use-case for Redis sets.[4] Since it is still in the process of being packaged for outside of Twitter use, the code is still very rough and hence there is no stable release available yet. FlockDB was posted on GitHub shortly after Twitter released its Gizzard framework, which it uses to query the FlockDB distributed datastore. The database is licensed under the Apache License.[1]

FlockDB
Original author(s)Nick Kallen, Robey Pointer, John Kalucki and Ed Ceaser from Twitter
Developer(s)Twitter[1]
Initial releaseApril 2010 (April 2010)
Final release
1.8.5 / 23 February 2012 (2012-02-23)[2]
Repository
Written inScala, Java, Ruby
TypeGraph Database
LicenseApache License 2.0
Websitegithub.com/twitter/flockdb

Twitter no longer supports FlockDB.[5]

See also

References
  1. "FlockDB System Properties". db-engines.com. Retrieved 2017-10-09.
  2. "FlockDB 1.8.5 released". Twitter. February 22, 2012. Retrieved 2 November 2013.
  3. "Gigaom | Twitter Open-sources the Home of Its Social Graph". gigaom.com. Retrieved 16 September 2017.
  4. "GitHub - twitter-archive/flockdb: A distributed, fault-tolerant graph database". github.com. Retrieved 16 September 2017.
  5. "GitHub - twitter-archive/flockdb: A distributed, fault-tolerant graph database". github.com. Retrieved 27 May 2020. Twitter is no longer maintaining this project or responding to issues or PRs.
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