操作系统版本：
LSB Version: :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 7.5.1804 (Core)
Release: 7.5.1804
Codename: Core
下载软件：
下载文件保存在/usr/local/src/5.6.8/
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.8.tar.gz
wget https://artifacts.elastic.co/downloads/logstash/logstash-5.6.8.tar.gz
wget https://artifacts.elastic.co/downloads/kibana/kibana-5.6.8-linux-x86_64.tar.gz
wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-5.6.8-linux-x86_64.tar.gz
wget https://github.com/medcl/elasticsearch-analysis-mmseg/releases/download/v5.5.2/elasticsearch-analysis-mmseg-5.5.2.zip 没有5.6.8版本
wget https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v5.6.8/elasticsearch-analysis-ik-5.6.8.zip
wget https://artifacts.elastic.co/downloads/elasticsearch-plugins/ingest-geoip/ingest-geoip-5.6.8.zip
wget https://artifacts.elastic.co/downloads/elasticsearch-plugins/ingest-user-agent/ingest-user-agent-5.6.8.zip
wget https://artifacts.elastic.co/downloads/elasticsearch-plugins/discovery-file/discovery-file-5.6.8.zip
增加elasticsearch用户
groupadd -g 3048 elasticsearch
useradd -s /bin/bash -u 3048 -g elasticsearch elasticsearch
安装elasticsearch
tar -zxf elasticsearch-5.6.8.tar.gz
cp -a elasticsearch-5.6.8 /usr/local
ln -s /usr/local/elasticsearch-5.6.8 /usr/local/elasticsearch
chown -R elasticsearch:elasticsearch /usr/local/elasticsearch-5.6.8
chown -R elasticsearch:elasticsearch /usr/local/elasticsearch
安装插件：
# install mmseg
unzip elasticsearch-analysis-mmseg-5.5.2.zip -d elasticsearch-analysis-mmseg-5.5.2
mkdir -p /usr/local/elasticsearch/plugins/elasticsearch-analysis-mmseg-5.6.8
cp -a elasticsearch-analysis-mmseg-5.5.2/elasticsearch/* /usr/local/elasticsearch/plugins/elasticsearch-analysis-mmseg-5.6.8/
chown -R elasticsearch:elasticsearch /usr/local/elasticsearch/plugins/elasticsearch-analysis-mmseg-5.6.8/
sed -i "s/elasticsearch\.version\=5\.5\.2/elasticsearch\.version\=5\.6\.8/g" /usr/local/elasticsearch/plugins/elasticsearch-analysis-mmseg-5.6.8/plugin-descriptor.properties
手动修改为5.6.8 # install ik
unzip elasticsearch-analysis-ik-5.6.8.zip -d elasticsearch-analysis-ik-5.6.8
mkdir -p /usr/local/elasticsearch/plugins/elasticsearch-analysis-ik-5.6.8
cp -a elasticsearch-analysis-ik-5.6.8/elasticsearch/* /usr/local/elasticsearch/plugins/elasticsearch-analysis-ik-5.6.8/
chown -R elasticsearch:elasticsearch /usr/local/elasticsearch/plugins/elasticsearch-analysis-ik-5.6.8/ # OR plugins install
su elasticsearch && cd /usr/local/elasticsearch
bin/elasticsearch-plugin install ingest-geoip
bin/elasticsearch-plugin install ingest-user-agent
bin/elasticsearch-plugin install discovery-file
系统配置
vim /etc/sysctl.conf
vm.swappiness=1
vm.max_map_count=262144 vim /etc/security/limits.conf
elasticsearch soft memlock unlimited
elasticsearch hard memlock unlimited # 执行命令生效sysctl.conf配置
sysctl -p
配置elasticsearch
vim /usr/local/elasticsearch/bin/elasticsearch
# 修改查找jvm配置文件顺序，加入"$AUTO_ES_HOME"/config/jvm.options，让虚拟机参数优先使用实例自己的配置
if [ -z "$ES_JVM_OPTIONS" ]; then
for jvm_options in "$AUTO_ES_HOME"/config/jvm.options \
"$ES_HOME"/config/jvm.options \
/etc/elasticsearch/jvm.options; do
if [ -r "$jvm_options" ]; then
ES_JVM_OPTIONS=$jvm_options
break
fi
done
fi
配置elasticsearch 相关配置文件，脚本启动即可。