ES单机搭建

ES安装

赛博朔方  枫叶

0.系统环境:

# cat /etc/redhat-release
	CentOS Linux release 7.3.1611 (Core)
	JDK:1.8.133
	ELK:6.0.0

1.jdk安装
解压:

# tar -zxf jdk-8u131-linux-x64.tar.gz 
# mv jdk1.8.0_131/ jdk

配置环境变量:

# vim /etc/profile 
	#java
	export JAVA_HOME=/home/software/jdk
	export PATH=$PATH:$JAVA_HOME/bin		

# source /etc/profile

测试:

# java -version
	java version "1.8.0_131"
	Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
	Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

2.安装
预备工作
(因为es提示用户安装尽量不要用root用户安装启动,如果用root则启动不起来)

# useradd elasticsearch
# echo qynsy,stjdc |passwd --stdin elasticsearch		
# echo "elasticsearch ALL = (root) NOPASSWD:ALL" | tee /etc/sudoers.d/elasticsearch
# chmod 0440 /etc/sudoers.d/elasticsearch

安装目录授权

# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.0.0.tar.gz
# tar -zxvf elasticsearch-6.0.0.tar.gz 
# mv elasticsearch-6.0.0 es
# chown -R elasticsearch:elasticsearch /home/software/es

数据目录授权

# mkdir -p /home/data/es/data
# mkdir -p /home/data/es/logs
# chown -R elasticsearch:elasticsearch /home/data/es/

系统配置
(因为es在查询时会打开多个文件句柄,所以尽量调大些)

# vim /etc/security/limits.conf 
	elasticsearch soft memlock unlimited		#指定用户在当前系统生效的最大锁定内存地址空间
	elasticsearch hard memlock unlimited 		
	* soft nofile 65536					#所有用户在当前系统生效的文件描述符的数量
	* hard nofile 131072				
	* soft nproc 2048					#所有用户在系统中创建的进程数的限制
	* hard nproc 4096

 # vim /etc/security/limits.d/20-nproc.conf
修改如下内容：
	* soft nproc 1024
修改为
	* soft nofile 65536
	* hard nofile 65536
	* soft nproc 65536
	* hard nproc 65536
	* soft memlock -1
	* hard memlock -1

# vim /etc/sysctl.conf 
      vm.max_map_count=655360		

# sysctl -p

配置环境变量:

# vim /etc/profile
		#es
		export ES_HOME=/home/software/es
		export PATH=$PATH:$ES_HOME/bin

# source /etc/profile

修改配置文件:

# vim /home/software/es/config/elasticsearch.yml（这个需要根据使用者各自的业务进行具体修改）

启动

# su elasticsearch
$ elasticsearch -d

(如果有问题会直接控制台报错,很多原因是文件权限问题,注意!)

测试:

# curl 'http://masternode01:9200/?pretty'
			{
			  "name" : "masternode01",
			  "cluster_name" : "sfinfoELK",
			  "cluster_uuid" : "K43Cw_R_R7u5puJwaZqKkw",
			  "version" : {
				"number" : "6.0.0",
				"build_hash" : "8f0685b",
				"build_date" : "2017-11-10T18:41:22.859Z",
				"build_snapshot" : false,
				"lucene_version" : "7.0.1",
				"minimum_wire_compatibility_version" : "5.6.0",
				"minimum_index_compatibility_version" : "5.0.0"
			  },
			  "tagline" : "You Know, for Search"
			}