此文檔針對es在centos7環(huán)境3節(jié)點(diǎn)部署，3節(jié)點(diǎn)ip分別為：172.16.10.102.172.16.10.103,172.16.10.104?
一、增加host?
每個節(jié)點(diǎn)下增加host配置?
172.16.10.102 HadoopMaster?
172.16.10.103 HadoopSlave1?
172.16.10.104 HadoopSlave2?
二、然后下載es安裝包?
cd /opt wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.0.tar.gz?
三、解壓es安裝包?
tar -zxvf elasticsearch-6.4.0.tar.gz?
四、編輯es配置文件（master配置如下，其他2個slave修改node.master:false即可）?
vim config/elasticsearch.yml?
network.host: 0.0.0.0?
discovery.zen.ping_timeout: 120s?
client.transport.ping_timeout: 60s?
discovery.zen.ping.unicast.hosts: ["172.16.10.102","172.16.10.103", "172.16.10.104"]?
cluster.name: escluster?
node.name: HadoopMaster?
path.data: /opt/elasticsearch-6.4.0/data?
path.logs: /opt/elasticsearch-6.4.0/datalog?
node.master: true?
node.data: true?
node.attr.rack: r1?
bootstrap.memory_lock: true?
bootstrap.system_call_filter: false?
http.port: 9200?
http.cors.enabled: true?
http.cors.allow-origin: "*"?
五、修改系統(tǒng)參數(shù)?
vim /etc/security/limits.conf?
新增?
soft nofile 65536hard nofile 65536soft nproc 65536hard nproc 65536soft memlock unlimitedhard memlock unlimited?
vim /etc/sysctl.conf?
新增?
vm.max_map_count=655360?
然后重新加載系統(tǒng)參數(shù)?
sysctl -p?
六、使用es用戶啟動?
groupadd es?
useradd es -g es-p elasticsearch-6.4.0?
chown -R es:es elasticsearch-6.4.0?
su es?
./elasticsearch -d?
七、安裝head?
在隨意個文件夾下?git clone git://github.com/mobz/elasticsearch-head.git安裝nodejs環(huán)境?
yum -y install nodejs?
cd elasticsearch-head/?
npm install?
npm install -g grunt-cli?
grunt server &?
Open http://localhost:9100?
（如果提示報錯phantomjs-prebuilt@2.1.16 install: node install.js）?
npm install phantomjs-prebuilt@2.1.16 --ignore-scripts?即可?
重新啟動es程序。?
打開網(wǎng)頁：http://172.16.10.102:9100（如果head的9200連接不上，檢查配置文件的http.cors.enabled: true?
http.cors.allow-origin: "*"?是否配置）

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