月份：2017年12月

http://www.21yunwei.com/archives/5475

http://blog.csdn.net/xiegh2014/article/details/53771086

adduser elastic

passwd elastic

chown -R elsearch:elsearch elasticsearch

1、关闭firewall：
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动

1. vi /etc/security/limits.conf

   ulimit -n 65536

   elasticsearch  -  nofile 65536

2. vi /etc/sysctl.conf

   vm.max_map_count=655360

   sysctl -p

http://www.linuxidc.com/Linux/2014-12/110211.htm

yum -y install wget                 安装wget命令

yum install perl-Digest-SHA -y   安装shasum命令

systemctl stop firewalld.service  Centos7 直接关闭防火墙

systemctl disable firewalld.service  Centos7 禁止firewall开机启动