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Elasticsearch集群是怎么搭建的，針對這個問題，這篇文章詳細介紹了相對應的分析和解答，希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
一：資源
集群： gh-cluster
節點1：gh-cluster-node-01 10.44.66.2
節點2：gh-cluster-node-02 10.116.148.103
節點3：gh-cluster-node-03 10.170.142.108
Elasticsearch:elasticsearch-2.4.4.tar.gz
安裝目錄：/mnt/gh
二：安裝 Elasticsearch
1.創建相關文件目錄
mkdir -p /mnt/gh/data/logs/elasticsearch
mkdir -p /mnt/gh/data/elasticsearch/{data,work,plugins,scripts}
2.創建新的用戶
groupadd elsearch
useradd elsearch -g elsearch -p elsearch
3.操作權限
chown -R elsearch:elsearch /mnt/gh/data/logs/elasticsearch /mnt/gh/data/elasticsearch
4.安裝 Elasticsearch
tar -zxvf elasticsearch-2.4.4.tar.gz
5./etc/security/limits.conf 配置
elsearch soft memlock unlimited
elsearch hard memlock unlimited
6.Elasticsearch 配置
vi /mnt/gh/elasticsearch-2.4.4/config/elasticsearch.yml
點擊(此處)折疊或打開
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please see the documentation for further information on configuration options:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html>
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: gh-cluster
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: gh-cluster-node-01
#
# Add custom attributes to the node:
#
# node.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
path.data: /mnt/gh/data/elasticsearch/data
#
# Path to log files:
#
path.logs : /mnt/gh/data/logs/elasticsearch
path.plugins: /mnt/gh/data/elasticsearch/plugins
path.scripts: /mnt/gh/data/elasticsearch/scripts
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
bootstrap.memory_lock: true
#
# Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory
# available on the system and that the owner of the process is allowed to use this limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 10.44.66.2
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html>
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping_timeout: 120s
discovery.zen.fd.ping_timeout: 120s
discovery.zen.ping.unicast.hosts: ["10.44.66.2", "10.116.148.103", "10.170.142.108"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):
#
discovery.zen.minimum_master_nodes: 2
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html>
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
gateway.recover_after_nodes: 3
gateway.recover_after_time: 30m
gateway.expected_nodes: 3
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html>
#
# ---------------------------------- Various -----------------------------------
#
# Disable starting multiple nodes on a single system:
#
# node.max_local_storage_nodes: 1
#
# Require explicit names when deleting indices:
#
# action.destructive_requires_name: true
各節點調整node-name的配置信息，保證唯一。
四： 在節點1上面安裝Elasticsearch 插件
1.安裝head插件 監控Elasticsearch的運行狀態以及數據
./plugin -DproxyPort=4832 -DproxyHost=10.116.4.116 install mobz/elasticsearch-head
紅色部分因為是內網，用了代理訪問外網
2.安裝kopf插件 ---ElasticSearch的管理工具
./plugin -DproxyPort=4832 -DproxyHost=10.116.4.116 install lmenezes/elasticsearch-kopf
五：啟動
以elsearch用戶啟動三個節點
/mnt/gh/elasticsearch-2.4.4/bin/elasticsearch
六：驗證
1.http://10.44.66.2:9200/
{
"name" : "gh-cluster-node-01",
"cluster_name" : "gh-cluster",
"cluster_uuid" : "iGovr8lcSW62JdEABzLMyg",
"version" : {
"number" : "2.4.4",
"build_hash" : "fcbb46dfd45562a9cf00c604b30849a6dec6b017",
"build_timestamp" : "2017-01-03T11:33:16Z",
"build_snapshot" : false,
"lucene_version" : "5.5.2"
},
"tagline" : "You Know, for Search"
}
2.head插件 http://10.44.66.2:9200/_plugin/head/
3.kopf插件 http://10.44.66.2:9200/_plugin/kopf/#!/nodes
七：操作命令
1.檢查集群的狀態
curl '10.44.66.2:9200/_cat/health?v'
2.檢查節點的信息
curl '10.44.66.2:9200/_cat/nodes?v'
3.檢查索引信息
curl '10.44.66.2:9200/_cat/indices?v'
4.創建索引
curl -XPUT '10.44.66.2:9200/customer?pretty'
5.往索引中，添加文檔
curl -XPUT '10.44.66.2:9200/customer/external/1?pretty' -d '{"name":"John Doe"}'
6.查看文檔信息
curl -XGET '10.44.66.2:9200/customer/external/1?pretty'
7.查看所有文檔數量
curl -XGET '10.44.66.2:9200/_count?pretty' -d '{"query":{"match_all":{}}}'
8.刪除索引
curl -XDELETE '10.44.66.2:9200/customer?pretty'
9.隨機創建文檔信息
curl -XPOST '10.44.66.2:9200/customer/external?pretty' -d '{"name":"Geng Chong"}'
一個 Elasticsearch 請求和任何 HTTP 請求一樣由若干相同的部件組成：
curl -X<VERB> '<PROTOCOL>://<HOST>:<PORT>/<PATH>?<QUERY_STRING>' -d '<BODY>'
被 < > 標記的部件：
VERB
適當的 HTTP 方法 或 謂詞 : GET`、 `POST`、 `PUT`、 `HEAD 或者 `DELETE`。
PROTOCOL
http 或者 https`（如果你在 Elasticsearch 前面有一個 `https 代理）
HOST
Elasticsearch 集群中任意節點的主機名，或者用 localhost 代表本地機器上的節點。
PORT
運行 Elasticsearch HTTP 服務的端口號，默認是 9200 。
PATH
API 的終端路徑（例如 _count 將返回集群中文檔數量）。Path 可能包含多個組件，例如：_cluster/stats 和 _nodes/stats/jvm 。
QUERY_STRING
任意可選的查詢字符串參數 (例如 ?pretty 將格式化地輸出 JSON 返回值，使其更容易閱讀)
BODY
關于Elasticsearch集群是怎么搭建的問題的解答就分享到這里了，希望以上內容可以對大家有一定的幫助，如果你還有很多疑惑沒有解開，可以關注億速云行業資訊頻道了解更多相關知識。
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