一、elastic search的安裝與配置

1、安裝Java 並且配置JAVA_HOME環境變數。

2、下載elasticsearch，下載地址：https://www.elastic.co/downloads/elasticsearch。博主下載時最新版為6.3.2，下面所有都是基於6.3.2進行的測試。選擇下載zip檔案，這樣解壓即可使用。

3.解壓後修改配置檔案。進入到elasticsearch所在目錄下面的config下面，修改elasticsearch.yml檔案，修改內容如下：

(1)、在檔案結尾加入如下程式碼（key和值之間必須要有 空格）

http.cors.enabled: true
http.cors.allow-origin: "*"
node.master: true

(2)、在檔案中找到network.host，將其值改為 127.0.0.1或者本機ip。

(3)、取消 http.port 、cluster.name 、node.name 三個值前面的註釋（去掉 #）。

# ======================== 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 consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
#path.data: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size 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: 127.0.0.1
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, consult the network module documentation.
#
# --------------------------------- 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.unicast.hosts: ["host1", "host2"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
#discovery.zen.minimum_master_nodes: 
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
http.cors.enabled: true
http.cors.allow-origin: "*"
node.master: true

4、將elasticsearch複製一份，修改elasticsearch.yml檔案內容。

# ======================== 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 consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-2
#
# Add custom attributes to the node:
#
node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /path/to/data
#
# Path to log files:
#
path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size 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: 0.0.0.0
#
# Set a custom port for HTTP:
#
http.port: 8200
#
# For more information, consult the network module documentation.
#
# --------------------------------- 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.unicast.hosts: ["127.0.0.1"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
#discovery.zen.minimum_master_nodes: 
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
http.cors.enabled: true
http.cors.allow-origin: "*"
node.data: true

5.安裝elasticsearch-head外掛，用於視覺化。

(1)、安裝node

(2)、安裝完成後在cmd裡面執行node -v可以檢視版本號，確認是否安裝成功。

(3)、在cmd裡面執行 npm install -g grunt-cli 安裝grunt，安裝完成後執行grunt -version查詢版本號，確定是否成功。

(5)、將其解壓到elasticsearch的安裝目錄下面

(6)、進入elasticsearch-head外掛目錄裡面，修改Gruntfile.js檔案，在對應的地方加上 hostname:'*'。

connect: {
			server: {
				options: {
					hostname:'*',
					port: 9100,
					base: '.',
					keepalive: true
				}
			}
		}

6、測試安裝是否成功。

(1)、進入elasticsearch目錄的bin目錄下面，點選elasticearch.bat檔案，進行啟動。

(2)、和第一步一樣啟動複製出來的另一個elasticsearch。

(3)、啟動完成後在瀏覽器訪問  http://127.0.0.1:9200,如果輸出一下json串表示啟動成功。

(4)、cmd進入elasticsearch-head外掛的目錄下面，執行以下命令  grunt server，顯示如下這表示執行成功。

(5)、在瀏覽器訪問 http:127.0.0.1:9100，就可以進行視覺化檢視。