ES错误：max file descriptors [4096] for elasticsearch process is too low, increase to at least

错误信息：max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]

# 在root用户下追加配置
vim /etc/security/limits.conf 
# 配置内容   *表示所有用户生效
* soft nofile 65536
* hard nofile 65536

# 重新登录即可生效
# 可使用命令查看是否生效
ulimit  -H -n