一、elastic search的安装与配置

1、安装Java 并且配置JAVA_HOME环境变量。

2、下载elasticsearch，下载地址：https://www.elastic.co/downloads/elasticsearch。博主下载时最新版为6.3.2，下面所有都是基于6.3.2进行的测试。选择下载zip文件，这样解压即可使用。

3.解压后修改配置文件。进入到elasticsearch所在目录下面的config下面，修改elasticsearch.yml文件，修改内容如下：

(1)、在文件结尾加入如下代码（key和值之间必须要有 空格）

　　

http.cors.enabled: true

http.cors.allow-origin: "*"

node.master: true

(2)、在文件中找到network.host，将其值改为 127.0.0.1或者本机ip。

(3)、取消 http.port 、cluster.name 、node.name 三个值前面的注释（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、将elasticsearch复制一份，修改elasticsearch.yml文件内容。

# ======================== 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.安装elasticsearch-head插件，用于可视化。

(1)、安装node

　　　　从地址：https://nodejs.org/en/download/ 下载相应系统的msi，双击安装。

(2)、安装完成后在cmd里面执行node -v可以查看版本号，确认是否安装成功。

(3)、在cmd里面执行 npm install -g grunt-cli 安装grunt，安装完成后执行grunt -version查询版本号，确定是否成功。

(4)、下载elasticsearch-head插件，在https://github.com/mobz/elasticsearch-head中下载head插件，选择下载zip。

(5)、将其解压到elasticsearch的安装目录下面

(6)、进入elasticsearch-head插件目录里面，修改Gruntfile.js文件，在对应的地方加上 hostname:'*'。

connect: {

			server: {

				options: {

					hostname:'*',

					port: 9100,

					base: '.',

					keepalive: true

				}

			}

		}

6、测试安装是否成功。

(1)、进入elasticsearch目录的bin目录下面，点击elasticearch.bat文件，进行启动。

(2)、和第一步一样启动复制出来的另一个elasticsearch。

(3)、启动完成后在浏览器访问  http://127.0.0.1:9200,如果输出一下json串表示启动成功。

(4)、cmd进入elasticsearch-head插件的目录下面，执行以下命令  grunt server，显示如下这表示运行成功。

(5)、在浏览器访问 http:127.0.0.1:9100，就可以进行可视化查看。

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