添加一个用户，ES不能以root运行

1.useradd hoewon
2.passwd hoewon
3.visudo -f /etc/sudoers
  hoewon ALL=(root) NOPASSWD: ALL

Installing JDK

1.sudo tar zxf jdk-8u141-linux-x64.tar.gz  -C /usr/local/

2.sudo ln -s /usr/local/jdk1.8.0_141/ /usr/local/jdk8

3.sudo vim /etc/profile.d/jdk.sh

  export JAVA_HOME=/usr/local/jdk8
  export PATH=$JAVA_HOME/bin:$PATH

4.sudo . /etc/profile

Installing ES

1.sudo tar zxf elasticsearch-5.5.2.tar.gz -C /usr/local/

2.sudo vim /etc/profile.d/es.sh

  export ES_HOME=/usr/local/elasticsearch-5.5.2
  export PATH=$ES_HOME/bin:$PATH

Configurate the system kernel args

modify the file process num

1.sudo vim /etc/security/limits.conf

#<domain>        <type>  <item>  <value>
hoewon           soft    nofile     65536
hoewon           hard    nofile     65536
hoewon           soft    nproc      2048
hoewon           hard    nproc      2048

#modify the vm.max_map_count

2.sudo vim /etc/sysctl.conf

  vm.max_map_count=262144

3.sudo reboot or sysctl -p

Configurate the ES config

1.vim $ES_HOME/conf/elasticsearch.yml
  

  network.host: 192.168.247.142

Running ES

1.cd $ES_HOME/bin

2.  ./elasticsearch

测试 192.168.247.142:9200/