[erlang-questions] About timeout of gen_server:call cross nodes

[skyman]

Hi all,
I find sometimes gen_server:call cross nodes will return 'timeout' error after less than Timeout millisecodes. For example: 
    gen_server:call({Name,Node}, 'GET_DATA', 5000).
Sometimes it will return "timeout" error after less than 5 seconds, why? Is it relevant to erlang:monitor?


Thanks in advance!
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