How many replicas do we require

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Reference no: EM133210490

Suppose we are using viewstamp replication, allowing for up to F process failures.

Question 1: How many replicas do we require?
Question 2: When does the primary server acknowledge the update back to the client?
Question 3: Suppose the primary and several replicas crash. What guarantees that at least one of the surviving replicas will know of the update?
Question 4: Suppose the new primary was not one of the replicas contacted by the old primary to perform the update. How will the new primary learn of the update?
Question 5: What failure model does viewstamp replication assume? Why is this assumption necessary?

Reference no: EM133210490

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