Hi,everyone,

    I have two question about Geo-distributed Active/Backup Setup in Carbon.
    
    1.It is said that the cluster can be expanded with nodes in a different 
datacenter, but in a way that doesn??t affect latency of the primary nodes, 
which I think means I can setup a backup cluster for a cluster running in 
another datacenter and actully the cluster always run in only one datacenter?


     2.It is mentioned that the voting state change is sent to any single 
cluster node by rpc request. But after that it is said that the leader persists 
the voting changes and replicates them to the remaining nodes, so the voting 
state change rpc is only carried out once on any cluster node or all cluster 
nodes?


Best regards,
Simpler
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