ELK之elasticsearch集群安装

本文主要介绍elasticsearch集群的安装，将会用到五台主机展示：

思路：先在一台主机上成功搭建好elasticsearch，在将搭建elasticsearch的yum源

和安装包用脚本复制到其他的主机上。

前提配置：

1.为所有的主机配置IP和主机名

192.168.1.11    es1
192.168.1.12    es2
192.168.1.13    es3
192.168.1.14    es4
192.168.1.15    es5
2.配置所有主机的 /etc/hosts
192.168.1.11    es1
192.168.1.12    es2
192.168.1.13    es3
192.168.1.14    es4
192.168.1.15    es5

elasticsearch 单机(192.168.1.11)安装
1 修改 /etc/hosts
2 安装 yum install -y java-1.8.0-openjdk
3 安装 yum install -y elasticsearch

修改配置文件 /etc/elasticsearch/elasticsearch.yml
network.host: 0.0.0.0
启动服务 systemctl start elasticsearch

浏览器访问验证 http://192.168.1.11:9200/

安装具体的细节
[root@ES1 ~]# vim /etc/hosts
192.168.6.11 ES1
[root@ES1 ~]# yum install -y java-1.8.0-openjdk
[root@ES1 ~]# yum install -y elasticsearch
[root@ES1 ~]# vim /etc/elasticsearch/elasticsearch.yml
network.host: 0.0.0.0
[root@ES1 ~]# systemctl start elasticsearch：
[root@ES1 ~]# curl  http://192.168.6.11:9200/    ------驗證是否成功
{
  "name" : "ES1",
  "cluster_name" : "my-es",
  "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"
}

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elasticsearch 集群安装

在其他所有节点安装 
yum install -y java-1.8.0-openjdk elasticsearch

在所有的节点配置以下的信息：
修改配置文件 
vim /etc/elasticsearch/elasticsearch.yml
cluster.name: nsd1803
node.name: 本机主机名称
network.host: 0.0.0.0
discovery.zen.ping.unicast.hosts: ["es1", "es2", "es3"]

验证集群
http://192.168.1.11:9200/_cluster/health?pretty

安装的具体细节
[root@ES1 ~]# for  i in {2..5}; do  scp /etc/hosts [email protected]$i:/etc/hosts; done
[root@ES1 ~]# for  i in {2..5}; do  scp /etc/yum.repos.d/zhy.repo [email protected]$i:/etc/yum.repos.d/zhy.repo; done
[root@ES2 ~]# yum install -y java-1.8.0-openjdk elasticsearch
[root@ES3 ~]# yum install -y java-1.8.0-openjdk elasticsearch
[root@ES4 ~]# yum install -y java-1.8.0-openjdk elasticsearch
[root@ES5 ~]# yum install -y java-1.8.0-openjdk elasticsearch
[root@ES1 ~]# for  i in {2..5}; do  scp /etc/elasticsearch/elasticsearch.yml   [email protected]$i:/etc/elasticsearch/elasticsearch.yml; done
[root@ES2 ~]#vim /etc/elasticsearch/elasticsearch.yml
node.name: ES2
[root@ES3 ~]#vim /etc/elasticsearch/elasticsearch.yml
node.name: ES3
[root@ES4 ~]#vim /etc/elasticsearch/elasticsearch.yml
node.name: ES4
[root@ES5 ~]#vim /etc/elasticsearch/elasticsearch.yml
node.name: ES5

[root@ES1 ~]# systemctl restart  elasticsearch  ---开启服务

[root@ES2 ~]# systemctl restart  elasticsearch

[root@ES3 ~]# systemctl restart  elasticsearch

[root@ES4 ~]# systemctl restart  elasticsearch

[root@ES5 ~]# systemctl restart  elasticsearch

[root@ES1 ~]# curl  http://192.168.6.11:9200/_cluster/health?pretty
{
  "cluster_name" : "my-es",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 5,
  "number_of_data_nodes" : 5,
  "active_primary_shards" : 0,
  "active_shards" : 0,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 100.0
}