查看“ElasticSearch：安装、head插件、集群、root启动”的源代码

[[category:ElasticSearch]]

== 关于 ==
【转自：[https://www.orchome.com/489 https://www.orchome.com/489]】

== Linux下安装 ==
* 确保jdk为jdk1.8.0_73以上，并已确保安装ok。

# 下载 ElasticSearch：
#: <syntaxhighlight lang="bash" highlight="">
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.1.1.tar.gz
tar -zxvf elasticsearch-5.1.1.tar.gz

cd elasticsearch-5.1.1
</syntaxhighlight>
# 修改limit限制：（5.0以后都要修改）
#: <syntaxhighlight lang="bash" highlight="">
> vi /etc/security/limits.conf
* soft nofile 65536
* hard nofile 65536

> echo 'vm.max_map_count=262144'>> /etc/sysctl.conf
> sysctl -p

> vi /etc/security/limits.d/90-nproc.conf
*          soft    nproc     2048
</syntaxhighlight>
# 设置配置文件：
#: <syntaxhighlight lang="bash" highlight="">
> vim config/elasticsearch.yml

node.name: node-1
path.data: /tmp/elasticsearch/data
path.logs: /tmp/elasticsearch/logs
network.host: 192.168.x.x
http.port: 9200
# 跨域
http.cors.enabled: true
http.cors.allow-origin: "*"
</syntaxhighlight>
# 创建用户：
#: <syntaxhighlight lang="bash" highlight="">
# 创建elasticsearch用户
groupadd elasticsearch
useradd elasticsearch -g elasticsearch -p elasticsearch
# 赋权限
chown elasticsearch:elasticsearch -R /usr/local/elasticsearch-5.1.1
</syntaxhighlight>
# 启动：
#: <syntaxhighlight lang="bash" highlight="">
su - elasticsearch -c "nohup /usr/local/elasticsearch-5.1.1/bin/elasticsearch >/dev/null 2>&1 &"
</syntaxhighlight>

=== head插件的安装 ===
# 下载：
#: <syntaxhighlight lang="bash" highlight="">
git clone git://github.com/mobz/elasticsearch-head.git
cd elasticsearch-head
</syntaxhighlight>
#* 在 elasticsearch-head 目录下 node_modules/grunt 下如果没有 grunt 二进制程序，需要执行：
#*: <syntaxhighlight lang="bash" highlight="">
cd elasticsearch-head
npm install grunt --save
</syntaxhighlight>
# 修改服务器监听地址：
#: 修改 elasticsearch-head 下 Gruntfile.js 文件，默认监听在 127.0.0.1 下 9200 端口；
#: [[File:Elasticsearch：安装head插件：修改Gruntfile.js文件.png|400px]]
#: 修改head的连接地址：（目录：head/_site/app.js）（把 localhost 修改成 es 的服务器地址）
#: <syntaxhighlight lang="bash" highlight="">
this.base_uri = this.config.base_uri || this.prefs.get("app-base_uri") || "https://localhost:9200";
</syntaxhighlight>
#: 在head目录中，执行npm install下载依赖的包：
#: <syntaxhighlight lang="bash" highlight="">
npm install
</syntaxhighlight>
# 启动服务：
#: <syntaxhighlight lang="bash" highlight="">
/usr/local/elasticsearch-head/node_modules/grunt/bin/grunt server
</syntaxhighlight>
#: [[File:Elasticsearch：安装head插件：启动.png|400px]]
# 访问：https://192.168.1.1:9100
#: [[File:Elasticsearch：安装head插件：访问.png|400px]]

=== 如果没有npm，则需安装npm ===
如下：
<syntaxhighlight lang="bash" highlight="">
curl https://npmjs.org/install.sh | sh
sh install.sh
</syntaxhighlight>
如果出现：
<syntaxhighlight lang="bash" highlight="">
npm cannot be installed without Node.js.
Install Node.js first, and then try again.
</syntaxhighlight>
则需要 安装Node.js：
<syntaxhighlight lang="bash" highlight="">
yum install -y nodejs
</syntaxhighlight>


如果node.js版本过低，则需要升级：
<syntaxhighlight lang="bash" highlight="">
# 第一步：首先安装 n 模块：
npm install -g n

# 第二步：升级node.js到最新稳定版
n stable
</syntaxhighlight>

== 集群搭建 ==
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