Gorums [1] is a novel framework for building fault tolerant distributed systems. Gorums offers a flexible and simple quorum call abstraction, used to communicate with a set of processes, and to collect and process their responses. Gorums provides separate abstractions for (a) selecting processes for a quorum call and (b) processing replies. These abstractions simplify the main control flow of protocol implementations, especially for quorum-based systems, where only a subset of the replies to a quorum call need to be processed.

Gorums uses code generation to produce an RPC library that clients can use to invoke quorum calls. Gorums is a wrapper around the gRPC library. Services are defined using the protocol buffers interface definition language.

The original EPaxos implementation modified to use Gorums can be found here.

A collection of different algorithms for reconfigurable atomic storage implemented using Gorums can be found here.

• Student/user guide
• Developer guide
• Adding extension options
• Managing vendoring

[1] Tormod Erevik Lea, Leander Jehl, and Hein Meling. Towards New Abstractions for Implementing Quorum-based Systems. In 37th International Conference on Distributed Computing Systems (ICDCS), Jun 2017.