epmd¶

Erlang Port Mapper Daemon

启动port mapper daemon¶

epmd [-d|-debug] [DbgExtra...] [-address Addresses] [-port No] [-daemon] [-relaxed_command_check]

Regular Options:

-address List: 指定epmd实例监听ip地址列表;ip地址用「,」分隔;同环境变量ERL_EPMD_ADDRESS
-port No: 指定epmd实例监听的端口(默认4369),同ERL_EPMD_PORT
-d | -debug:
-daemon: 默认启动
-relaxed_command_check: 环境变量ERL_EPMD_RELAXED_COMMAND_CHECK

DbgExtra Options(调试专用):

-packet_timeout Seconds: 设定连接不活跃的秒数,如超过epmd超时并关闭连接，默认60
-delay_accept Seconds:用于模拟busy server环境
-delay_write Seconds:也用于模拟busy server环境

与一个运行的port mapper daemon交互¶

epmd [-d|-debug] [-port No] [-names|-kill|-stop Name]

选项:

-names: Lists names registered with the currently running epmd.
-kill: Kills the currently running epmd.
-stop Name: Forcibly unregisters a live node from the epmd database.