elasticsearch6.6.0安装配置及elasticsearch-head插件安装

一、最小化安装centos7.6

cat /etc/redhat-release

二、配置网络，可以上外网

三、安装常用命令工具，修改系统时区，校对系统时间，关闭selinux，关闭firewalld，修改主机名，修改系统文件描述符，内存锁限制及vm.max_map_count 数量（否则启动elasticsearch时报错）

1、安装常用命令工具

yum install vim net-tools bash-completion wget unzip ntp bzip2 epel-release -y

2、修改系统时区，校对系统时间

timedatectl set-timezone Asia/Shanghai

ntpdate pool.ntp.org

3、关闭selinux

vim /etc/selinux/config

4、关闭防火墙

systemctl stop firewalld.service

systemctl disable firewalld.service

5、修改主机名

vim /etc/hostname

6、修改系统文件描述符大小

vim /etc/security/limits.conf

最后添加：

* soft nofile 655360
* hard nofile 655360
* soft nproc 655360
* hard nproc 655360
* soft memlock unlimited
* hard memlock unlimited

7、修改 vm.max_map_count值

vim /etc/sysctl.conf

最后添加：

vm.max_map_count = 655360

8、重启系统使配置生效

init 6

四、安装elasticsearch

1、安装java1.8

yum install java-1.8.0-openjdk -y

设置java环境变量

vim /etc/profile

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.x86_64
export CLASSPATH=:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
export JRE_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.x86_64/jre
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

source /etc/profile

2、官网下载最新版elasticsearch

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.6.0.tar.gz

tar -zxf elasticsearch-6.6.0.tar.gz

mv elasticsearch-6.6.0 /opt/elasticsearch

3、添加elasticsearch用户，用来启动elasticsearch

groupadd elasticsearch

useradd elasticsearch -g elasticsearch

4、将elasticsearch目录授权给elasticsearch用户

chown -R elasticsearch:elasticsearch /opt/elasticsearch

5、修改elasticsearch配置文件

vim /opt/elasticsearch/config/elasticsearch.yml

最后添加：

cluster.name: logsearch
node.name: node-1
path.data: /opt/elasticsearch/data
path.logs: /opt/elasticsearch/logs
bootstrap.memory_lock: true
network.host: 0.0.0.0
http.port: 9200
#discovery.zen.ping.unicast.hosts: [“192.168.0.58”, “192.168.0.59”, “192.168.0.60”]
#discovery.zen.minimum_master_nodes: 2
http.cors.enabled: true
http.cors.allow-origin: “*”
http.cors.allow-credentials: true
http.cors.allow-headers: Authorization,X-Requested-With,Content-Length,Content-Type

6、切换到elasticsearch用户启动elasticsearch

su – elasticsearch

/opt/elasticsearch/bin/elasticsearch -d