下載安裝簽名證書
[[email protected] ~]#rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch

建立repo檔案

[[email protected] ~]#vim /etc/yum.repos.d/elasticsearch.repo

[elasticsearch-2.x]
name=Elasticsearch repository for 2.x packages
baseurl=https://packages.elastic.co/elasticsearch/2.x/centos
gpgcheck=1
gpgkey=https://packages.elastic.co/GPG-KEY-elasticsearch
enabled=1

yum安裝ES

[[email protected] ~]#yum install elasticsearch -y

啟動ES
[[email protected] ~]#service elasticsearch start

PS:我在執行的時候發生的報錯，如下：

which: no java in (/sbin:/usr/sbin:/bin:/usr/bin)
Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME

但是我的java配置都是正確的：

[

[email protected] ~]# java -version
java version "1.8.0_65"
Java(TM) SE Runtime Environment (build 1.8.0_65-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.65-b01, mixed mode)
[[email protected] ~]# echo $JAVA_HOME
/usr/java/jdk1.8.0_65

沒辦法，做個連結解決了問題。

[[email protected] ~]# ln -s /usr/java/jdk1.8.0_65/bin/java /usr/bin/java

[[email protected] ~]# vim /etc/elasticsearch/elasticsearch.yml

修改54行程式碼，改為本機IP.

 54  network.host: IP地址

訪問一下：http://IP地址:9200/

{
  "name" : "Geiger",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "2.3.4",
    "build_hash" : "e455fd0c13dceca8dbbdbb1665d068ae55dabe3f",
    "build_timestamp" : "2016-06-30T11:24:31Z",
    "build_snapshot" : false,
    "lucene_version" : "5.5.0"
  },
  "tagline" : "You Know, for Search"
}

預設安裝目錄為：/usr/share/elasticsearch/

預設配置目錄為：/etc/elasticsearch/

ok，搞定！