安装elasticsearch-7.0.0(centos)

云主机上需设置root密码

sudo passwd root 回车后出入密码两次

jdk11页面

https://www.oracle.com/technetwork/java/javase/downloads/index.html
https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html

安装jdk

mkdir /opt/downloads

jdk11
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" -P /opt/downloads http://download.oracle.com/otn-pub/java/jdk/11.0.2+9/f51449fcd52f4d52b93a989c5c56ed3c/jdk-11.0.2_linux-x64_bin.rpm

rpm -ivh /opt/downloads/jdk-11.0.2_linux-x64_bin.rpm

jdk1.8

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" -P /opt/downloads https://download.oracle.com/otn-pub/java/jdk/8u201-b09/42970487e3af4f5aa5bca3f542482c60/jdk-8u201-linux-x64.rpm

rpm -ivh /opt/downloads/jdk-8u201-linux-x64.rpm

查看是否安装成功

java -version

安装elasticsearch

https://www.elastic.co/cn/downloads/elasticsearch
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" -P /opt/downloads https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.0.0-x86_64.rpm
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" -P /opt/downloads https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.0.0-linux-x86_64.tar.gz

rpm -ivh /opt/downloads/elasticsearch-7.0.0-x86_64.rpm

配置elasticsearch

vim /etc/elasticsearch/elasticsearch.yml
修改network.host的值
network.host: 192.168.x.x 自身ip，限制为内网访问
network.host: 0.0.0.0 也可以不限制ip
http.port: 9200

sudo systemctl daemon-reload
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch.service

注：es不能用root用户启动

测试是否正常运行
curl http://localhost:9200/

关闭命令
netstat -anltp|grep 9200
显示LISTEN xxxx/java
kill -9 xxxx

安装Elasticsearch-head

先查看是否安装git
git --version
安装git
yum install -y git
卸载为
yum remove git

安装Elasticsearch-head
cd /opt
git clone git://github.com/mobz/elasticsearch-head.git

修改配置
vim /opt/elasticsearch-head/Gruntfile.js
在原有的connect:server:options节点上加上hostname: '*',

修改es配置
vim /etc/elasticsearch/elasticsearch.yml
network.host: 0.0.0.0
http.cors.enabled: true
http.cors.allow-origin: "*"

安装node和npm
参数：https://github.com/nodesource/distributions
curl -sL https://rpm.nodesource.com/setup_11.x | bash -
yum install -y nodejs
查看安装的版本
node -v
npm -v

安装grunt和grunt-cli
sudo npm install -g grunt
sudo npm install -g grunt-cli
安装模块依赖
npm install
npm install grunt --save #安装grunt到模块中并保存

后台启动head
cd /opt/elasticsearch-head
nohup npm run start &
回车返回到shell

客户端浏览器打开x.x.x.x:9100
若显示未连接修改http://y.y.y.y:9200为es服务器ip:port

关闭
netstat -anltp|grep 9100
显示LISTEN xxxx/grunt
kill -9 xxxx

安装IK Analysis插件
/usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.0.0/elasticsearch-analysis-ik-7.0.0.zip
重启es服务
sudo systemctl restart elasticsearch.service

守护进程启动文件浏览

vim /usr/lib/systemd/system/elasticsearch.service

[Unit]
Description=Elasticsearch
Documentation=http://www.elastic.co
Wants=network-online.target
After=network-online.target

[Service]
RuntimeDirectory=elasticsearch
PrivateTmp=true
Environment=ES_HOME=/usr/share/elasticsearch
Environment=ES_PATH_CONF=/etc/elasticsearch
Environment=PID_DIR=/var/run/elasticsearch
EnvironmentFile=-/etc/sysconfig/elasticsearch

WorkingDirectory=/usr/share/elasticsearch

User=elasticsearch
Group=elasticsearch

ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid --quiet

# StandardOutput is configured to redirect to journalctl since
# some error messages may be logged in standard output before
# elasticsearch logging system is initialized. Elasticsearch
# stores its logs in /var/log/elasticsearch and does not use
# journalctl by default. If you also want to enable journalctl
# logging, you can simply remove the "quiet" option from ExecStart.
StandardOutput=journal
StandardError=inherit

# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65535

# Specifies the maximum number of processes
LimitNPROC=4096

# Specifies the maximum size of virtual memory
LimitAS=infinity

# Specifies the maximum file size
LimitFSIZE=infinity

# Disable timeout logic and wait until process is stopped
TimeoutStopSec=0

# SIGTERM signal is used to stop the Java process
KillSignal=SIGTERM

# Send the signal only to the JVM rather than its control group
KillMode=process

# Java process is never killed
SendSIGKILL=no

# When a JVM receives a SIGTERM signal it exits with code 143
SuccessExitStatus=143

[Install]
WantedBy=multi-user.target

# Built for packages-7.0.0 (packages)