I think the author wants to compare 3-servers system with 4-servers
system.
In a 3-servers system the quorum consists of 2 servers and system
tolerates 1-server crash.
In a 4-servers system the quorum consists of 3 servers and system
tolerates also 1-server crash.
In general system works by sending messages among the quorum of servers.
It means that 3-servers system is better - as it tolerates the same
number of crashes, but quorum there is smaller. In consequence in
3-servers system will be less messages in the network - servers will
wait for less acknowledgments to collect - the latency and throughput
should be better.
Dnia 4 kwiecień 2014 15:40:18 chaitanya_r pisze:
Can someone please help me in understanding this basic thing.
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