supervisor中的minfds及minprocs参数用途

使用supervison启动es时，总是启动失败，报

ERROR: [1] bootstrap checks failed [1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

需要在/etc/supervisord.conf配置中修改

minfds= 65536 ; (min. avail startup file descriptors;default 1024)