FlockDB

A distributed graph database built by Twitter for storing adjacency lists, optimized for wide and shallow social graphs like follower relationships. Supports set arithmetic queries but intentionally avoids multi-hop graph traversal.

Details

Vendor

Twitter (now X)

Type

Other

Category

Established

Released

2010

Status

Inactive — Archived and unmaintained since 2017. Twitter is no longer responding to issues or PRs.

License

Apache-2.0

Language

Scala

Query Languages

Thrift API

Links