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Line 59: ==== Timing and availability ==== Timing is critical in Raft to elect and maintain a steady leader over time, in order to have a perfect availability of the cluster. Stability is ensured by respecting the ''timing requirement'' of the algorithm :<blockquote>''broadcastTime << electionTimeout << MTBF''</blockquote> * ''broadcastTime'' is the average time it takes a server to send a request to every server in the cluster and receive responses. It is relative to the infrastructure used. * ''MTBF (Mean Time Between Failures)'' is the average time between failures for a server. It is also relative to the infrastructure. * ''electionTimeout'' is the same as described in the Leader Election section. It is something the programmer must choose.

Raft (algorithm): Difference between revisions