Prepare
PrepareOK
View Change
Recovery
Failure
Event Log
Viewstamped Replication (VR)
A consensus protocol where replicas are stamped with view numbers. The primary handles requests; backups monitor and initiate view changes on failure. f+1 of 2f+1 replicas must agree.
A consensus protocol where replicas are stamped with view numbers. The primary handles requests; backups monitor and initiate view changes on failure. f+1 of 2f+1 replicas must agree.
Actions
Simulation
Replica Status
System State
0
View
0
Op Number
0
Committed
5
Active