进击的大数据（四）elasticsearch 的搭建

1. 下载elasticsearch

喜欢使用最新版本的可以去官网下载最新版本，因为官网下载慢，总中断，这里我网盘分享一个7.2版本，方便下载。

elasticsearch官网：https://www.elastic.co/cn/

百度网盘链接：https://pan.baidu.com/s/1cWAwxoueGWllLZmkwcvgbg
提取码：a815

2. 安装部署

主机系统：Centos7

elasticsearch版本：7.2.0

将ES安装包移动到centos下进行安装，ES的安装比较简单，这里我们先做单节点的部署，分布式我们以后再进行配置。

[root@node1 ~]# rpm -ivh elasticsearch-7.2.0-x86_64.rpm   //rpm安装ES

[root@node1 data]# mkdir /usr/bjxc/spartacus/data/es //准备数据存放目录

[root@master data]# chown -R elasticsearch:elasticsearch/usr/bjxc/spartacus/data/es/   //设置用户组

[root@node1 ~]# vim /etc/elasticsearch/elasticsearch.yml   //修改配置文件

 

 

========================================以下是配置文件内容========================================

#=========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: cluster

#

# ------------------------------------ Node ------------------------------------

#

# Use a descriptive name for the node:

#

node.name: node2             

#

# 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: /usr/bjxc/spartacus/data/es/

#

#

# Path to log files:

#

path.logs: /var/log/elasticsearch

#

# ----------------------------------- 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: 9200

#

# For more information, consult the network module documentation.

#

# --------------------------------- Discovery ----------------------------------

#

# Pass an initial list of hosts to perform discovery when this node is started:

# The default list of hosts is ["127.0.0.1", "[::1]"]

#

#discovery.seed_hosts: ["host1", "host2"]

#

# Bootstrap the cluster using an initial set of master-eligible nodes:

#

cluster.initial_master_nodes: ["node0"]

#

# For more information, consult the discovery and cluster formation 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

xpack.ml.enabled: false

xpack.security.enabled: false

===========================================配置文件内容结束=======================================

[root@node1 ~]# Service elasticsearch start      //启动ES

[root@node1 ~]# Service elasticsearch status     //查看服务启动状态

上图表示es服务启动正常，要查看es运行是否正常，可以通过web访问  http://IP地址:9200，查看运行状态