旧版本Elasticsearch安装

安装Elasticsearch版本：5.5.3

一、安装JDK

jdk下载地址：https://www.oracle.com/java/technologies/downloads/

# 解压jdk
tar xf jdk-8u351-linux-x64.tar.gz

# 配置环境变量
vim /etc/profile

export JAVA_HOME=/data/soft/jdk1.8.0_351
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib

# 环境变量生效
source /etc/profile

# 查看java版本是否正确
java -versionjava version "1.8.0_351"
Java(TM) SE Runtime Environment (build 1.8.0_351-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.351-b10, mixed mode)

二、安装Elasticsearch5.5.3

下载地址：https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.3.tar.gz

1、安装ES

# 解压文件
tar xf elasticsearch-5.5.3.tar.gz -C /data1/env/

# 配置软链
ln -s /data1/env/elasticsearch-5.5.3 /data1/soft/elasticsearch

2、配置用户

# 创建es运行的用户，es不能直接运行在root用户下
id es >/dev/null 2>&1 || useradd es -u 1002 -s /bin/bash -d /data1/env/elasticsearch-5.5.3

# 目录修改用户权限
chown -R es:es /data1/env/elasticsearch-5.5.3

# max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]  报错问题

vim /etc/sysctl.conf
# 在最后面添加
vm.max_map_count=262144

# 保存之后，执行生效

/sbin/sysctl -p

# 修改配置文件
vim /data1/soft/elasticsearch/config/elasticsearch.yml

node.name: es1   # 自定义名称
network.host: 0.0.0.0    # 开放访问
http.port: 9200              # 访问端口9200

3、安装密码组件

/data1/soft/elasticsearch/bin/elasticsearch-plugin install x-pack

配置密码

/data1/soft/elasticsearch/bin/setup-passwords interactive

4、配置启动文件

vim /lib/systemd/system/elasticsearch.service

[Unit]
Description=Elasticsearch
Documentation=http://www.elastic.co
Wants=network-online.target
After=network-online.target
[Service]
Environment=ES_HOME=/data1/soft/elasticsearch
Environment=CONF_DIR=/data1/soft/elasticsearch/config
Environment=DATA_DIR=/data1/soft/elasticsearch/data
Environment=LOG_DIR=/data1/soft/elasticsearch/logs
Environment=PID_DIR=/data1/soft/elasticsearch
EnvironmentFile=-/etc/sysconfig/elasticsearch

WorkingDirectory=/data1/soft/elasticsearch

User=es
Group=es

#ExecStartPre=/data/soft/elasticsearch/bin/elasticsearch-systemd-pre-exec

ExecStart=/data1/soft/elasticsearch/bin/elasticsearch \
                                                -p /data1/soft/elasticsearch/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=65536

# Specifies the maximum number of processes
LimitNPROC=65536

# Specifies the maximum number of bytes of memory that may be locked into RAM
# Set to "infinity" if you use the 'bootstrap.memory_lock: true' option
# in elasticsearch.yml and 'MAX_LOCKED_MEMORY=unlimited' in /etc/sysconfig/elasticsearch
#LimitMEMLOCK=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

启动

systemctl start elasticsearch