ElasticSearch安裝

ElaticSearch安裝

ElasticSearch介紹

Elasticsearch是一個基於Lucene的實時的分佈式搜索和分析引擎。
設計用於雲計算中，能夠達到實時搜索，穩定，可靠，快速，安裝使用方便。
基於Restful接口
- 普通請求是...get?a=1
- rest請求...get/a/1

ElasticSearch的用戶
- Github，Wikipedia，ebay等...

1.解壓文件

[root@node01 software]# tar -zxvf elasticsearch-2.4.0.tar.gz -C /opt/modules/

2.編寫ElasticSearch配置文件

修改config/elasticsearch.yml    (注意要頂格寫，冒號後面要加一個空格)
a)  Cluster.name: matrix   (同一集羣要一樣)
b)  Node.name： node-1  (同一集羣要不一樣)
c)  Network.Host: 192.168.230.10   這裏不能寫127.0.0.1
d)  防止腦裂的配置
# 關閉組合方式尋找機器
discovery.zen.ping.multicast.enabled: false
# 尋找機器的時間
discovery.zen.ping_timeout: 120s
client.transport.ping_timeout: 60s
# 在集羣裏有可能找到這幾個機器
discovery.zen.ping.unicast.hosts: ["192.168.230.10","192.168.230.11", "192.168.230.12"]

2.1.配置node01節點上的ElasticSearch

[root@node01 modules]# cd elasticsearch-2.4.2
[root@node01 elasticsearch-2.4.2]# vi config/elasticsearch.yml

a)  Cluster.name: matrix
b)  Node.name： node-1
c)  Network.Host: 192.168.230.10

discovery.zen.ping.multicast.enabled: false
discovery.zen.ping_timeout: 120s
client.transport.ping_timeout: 60s
discovery.zen.ping.unicast.hosts: ["192.168.230.10","192.168.230.11", "192.168.230.12"]

2.2.將node01節點上的ElasticSearch分發到node02、node03節點上

[root@node01 modules]# scp -r elasticsearch-2.4.2 root@node02:/opt/modules/
[root@node01 modules]# scp -r elasticsearch-2.4.2 root@node03:/opt/modules/

2.2.配置node02節點上的ElasticSearch

[root@node01 elasticsearch-2.4.2]# vi config/elasticsearch.yml

a)  Cluster.name: matrix
b)  Node.name： node-2
c)  Network.Host: 192.168.230.11

discovery.zen.ping.multicast.enabled: false
discovery.zen.ping_timeout: 120s
client.transport.ping_timeout: 60s
discovery.zen.ping.unicast.hosts: ["192.168.230.10","192.168.230.11", "192.168.230.12"]

2.2.配置node03節點上的ElasticSearch

[root@node01 elasticsearch-2.4.2]# vi config/elasticsearch.yml

a)  Cluster.name: matrix
b)  Node.name： node-3
c)  Network.Host: 192.168.230.12

discovery.zen.ping.multicast.enabled: false
discovery.zen.ping_timeout: 120s
client.transport.ping_timeout: 60s
discovery.zen.ping.unicast.hosts: ["192.168.230.10","192.168.230.11", "192.168.230.12"]

3.啓動ElasticSearch集羣

注意：Elastic不能在root用戶下運行，node01、node02、node03機器是一樣的步驟

[root@node01 elasticsearch-2.4.2]# useradd matrix
[root@node01 elasticsearch-2.4.2]# chown -R matrix:matrix ../*
[root@node01 elasticsearch-2.4.2]# ll
total 48
drwxr-xr-x. 2 matrix matrix  4096 Jan  6 18:30 bin
drwxr-xr-x. 2 matrix matrix  4096 Jan  6 20:21 config
drwxr-xr-x. 2 matrix matrix  4096 Jan  6 18:30 lib
-rw-rw-r--. 1 matrix matrix 11358 Jan 27  2016 LICENSE.txt
drwxr-xr-x. 2 matrix matrix  4096 Jan  6 20:34 logs
drwxrwxr-x. 4 matrix matrix  4096 Jan 27  2016 modules
-rw-rw-r--. 1 matrix matrix   150 Jan 27  2016 NOTICE.txt
-rw-rw-r--. 1 matrix matrix  8700 Jan 27  2016 README.textile
[root@node01 elasticsearch-2.2.0]# passwd matrix
Changing password for user matrix.
New password: 
BAD PASSWORD: it is too simplistic/systematic
BAD PASSWORD: is too simple
Retype new password: 
passwd: all authentication tokens updated successfully.
[root@node01 elasticsearch-2.2.0]# su matrix

3.1.運行ElasticSearch

[matrix@node01 elasticsearch-2.4.2]$ chmod u+x ./bin/elasticsearch
[matrix@node01 elasticsearch-2.4.2]$ ./bin/elasticsearch

4.ElasticSearch安裝後訪問http://localhost:9200

注意這裏最好用火狐或者chrome瀏覽器

http://192.168.230.10:9200/

http://192.168.230.11:9200/

http://192.168.230.12:9200/

4.1.查看整個集羣的狀態

http://192.168.230.11:9200/_cluster/health?pretty