Erlang doesn‘t detect net splits by itself. You could start looking at
net_kernel:set_net_ticktime/2 (try to increase this value if your node is
suffering from high load/traffic) and kernel/src/dist_utils.erl to get a
grasp how erlang handles node connections.
参考这个
原文：http://www.cnblogs.com/getong/p/5153659.html