educative.io

3 servers for show?

In the second last section titled as “ActiveReservationService and WaitingUserService partitioning:”
,it says : “let us assume for load balancing our Consistent Hashing allocates three servers for any Show,”

What does this mean? 3 servers for any show? Consistent hashing will map to one server on ring, where is this concept of 3 servers coming from?

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I had the same question

With 3 here I feel just the load is being distributed across 3 machines, but why? Even I am not sure about that. According to me, one server should be enough for a show.