Centos7 单机安装Elasticsearch6.3.0

安装Elasticsearch至少需要JAVA1.8以上的版本，这里直接用yum安装

1 # yum -y install java-1.8.0-openjdk.x86_64 java-1.8.0-openjdk-devel.x86_64

ELasticsearch官方下载，这里使用的tar包安装，官网也有做好的RPM包直接安装

1 # wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.0.tar.gz

配置sysctl.conf

 1 #修改sysctl配置
 2 vim /etc/sysctl.conf
  
 3 #添加如下配置
 4 vm.max_map_count=262144

 5 #让配置生效
 6 sysctl -p
  
 7 #查看配置的数目
 8 sysctl -a|grep vm.max_map_count

elasticsearch从5.0版本之后不允许root账户启动

 1 #添加用户
 2 adduser elsearch
 3 
 4 #设定密码
 5 passwd elsearch
 6 
 7 #添加权限
 8 chown -R research:research /data/elasticsearch-6.3.0
 9 
10 #切换用户
11 su elsearch
12 
13 #启动elasticsearch
14 
15 ./elasticsearch-6.3.0/bin/elasticsearch
16 配置limits.conf
17 
18 vim /etc/security/limits.conf
19 把
20 * soft nofile 65535
21 * hard nofile 65535
22 
23 改为
24 * soft nofile 65536
25 * hard nofile 65536
26 
27 #切换用户
28 su elsearch
29 
30 配置所有用户访问
31 vim /data/elasticsearch-6.3.0/config/elasticsearch.yml
32 添加一下内容
33 network.host: 0.0.0.0

curl查看9200端口，笔记本使用Chrome浏览器打不开换火狐可以，不知为何

 1 [root@node2 ~]# curl localhost:9200
 2 {
 3   "name" : "XifVC-v",
 4   "cluster_name" : "elasticsearch",
 5   "cluster_uuid" : "xasjIJiDSM6bAOeMHeF2GQ",
 6   "version" : {
 7     "number" : "6.3.0",
 8     "build_flavor" : "default",
 9     "build_type" : "tar",
10     "build_hash" : "424e937",
11     "build_date" : "2018-06-11T23:38:03.357887Z",
12     "build_snapshot" : false,
13     "lucene_version" : "7.3.1",
14     "minimum_wire_compatibility_version" : "5.6.0",
15     "minimum_index_compatibility_version" : "5.0.0"
16   },
17   "tagline" : "You Know, for Search"
18 }

安装Elasticsearch head插件

1 wget https://npm.taobao.org/mirrors/node/latest-v4.x/node-v4.5.0-linux-x64.tar.gz
2 
3 [elsearch@node2 ~]$ sudo tar zxvf node-v4.5.0-linux-x64.tar.gz -C /usr/local/
4 配置环境变量
5 export NODE_HOME=/usr/local/node-v4.5.0-linux-x64
6 export PATH=$PATH:$NODE_HOME/bin
7 export NODE_PATH=$NODE_HOME/lib/node_modules

安装npm

[root@node2 ~]# npm install -g cnpm --registry=https://registry.npm.taobao.org

下载head插件
[elsearch@node2 ~]$ wget https://github.com/mobz/elasticsearch-head/archive/master.zip
[elsearch@node2 ~]$ sudo unzip master.zip 
[root@node2 ~]# npm install -g grunt

[root@node2 ~]# npm install -g grunt-cli --registry=https://registry.npm.taobao.org --no-proxy

下载依赖包

[root@node2 ~]# cd /usr/local/elasticsearch-head-master/
[root@node2 elasticsearch-head-master]# npm install
接下来是漫长的等待时间

启动head

[elsearch@node2 elasticsearch-head-master]$ sudo vim Gruntfile.js
                connect: {
                        server: {
                                options: {
                                        hostname:'0.0.0.0',
                                        port: 9100,
                                        base: '.',
                                        keepalive: true
                                }
                        }
                }

        });

在当前目录启动head
通过命令grunt server 启动head

[root@node2 elasticsearch-head-master]# grunt server
Running "connect:server" (connect) task
Waiting forever...
Started connect web server on http://localhost:9100