elasticsearch安装问题

问题1: 

can not run elasticsearch as root

groupadd es

useradd es -g es

chown -R es:es /usr/local/elasticsearch-6.5.1  该命令是更改该文件夹下所属的用户组的权限

su es   #切换用户

问题2:

max file descriptors [65531] for elasticsearch process is too low, increase to at least [65536]

see https://blog.csdn.net/kq1983/article/details/83443907


* hard nofile 65551

问题3:
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

vi /etc/sysctl.conf
vm.max_map_count=262200
sysctl -p
sysctl -a |grep 'vm'