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A comment on Show HN: Geo-Distributed KV Store for Metadata Management.

Re:Show HN: Geo-Distributed KV Store for Metadata Management by nvartolomei on Thursday January 25, 2024 @09:13AM (#39129734)
> Existing distributed KV stores mostly adopt the Raft consensus protocol, which takes two RTTs to complete a request.

Why 2? Isn’t a single AppendEntries request from the leader enough?

[ Parent | on HN ]
Re:Show HN: Geo-Distributed KV Store for Metadata Management by nvartolomei on Friday January 26, 2024 @04:14AM (#39140407)
This sentence is explained on their homepage:

> it takes 2 RTTs to complete a consensus request from the view of a client. One RTT takes place between the client and the leader server, and the leader server takes another RTT to broadcast the message to the follower servers

[ Parent | on HN ]