Raft (algorithm): Difference between revisions

Revision as of 09:25, 15 August 2017

Revision as of 09:24, 17 August 2017

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=== Approach of the consensus problem in Raft ===

Raft implements consensus by a leader approach. The server has one and only one elected leader which is fully responsible for managing log replication on the other servers of the cluster. It means that the leader can decide of new entries placement and establishment of data flow between himit and the other servers without consulting other servers. A leader leads until it fails or disconnects, in which case a new leader is elected.

The consensus problem is decomposed in Raft into three relatively independent subproblems listed down below.