When errors occur on a server among multiple servers, the work which is being processed on the server will be handled on a different server in the same group.
Ongoing program service : Because automatic failover is possible without the intervention of an administrator, services always remain online state and clients do not have to stop using service.
Efficient Load Balancing: Each node is able to adjust the traffic weights so you can adjust the throughput according to the specifications of each node.
Acquisition costs reduction: You can reduce the cost because the increase or decrease of server can be adjusted flexibly according to load of service. (It is possible to add up to 32 nodes)
When Node 1 fails, redistribute traffic to Node 2, 3, 4.
