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elasticsearch5.0 安装流程


# by coco


# 2016-11-09



1. 下载:官网地址:


wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.0.0.tar.gz


https://www.elastic.co/guide/en/elasticsearch/reference/5.0/mapping-all-field.html    //官方wiki文档





1.去官网下载jdk:



http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html



tar -xvf elasticsearch-5.0.0.tar.gz 



 cd elasticsearch-5.0.0







确保系统已经安装好jdk1.8.0_73以上,操作系统centos6以上。


一、elasticsearch安装配置

1.官网下载源码包

https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.0.0.tar.gz

2.解压安装

useradd              elasticsearch            


             tar              xf elasticsearch-5.0.0.             tar             .gz -C              /usr/local            


             cd              /usr/local            


             ln              -sv elasticsearch-5.0.0 elasticsearch            


             mkdir              -pv              /data/elasticsearch/             {data,logs}            


             chown                           -R elasticsearch.elasticsearch              /data/elasticsearch             


             
            


             mkdir -p /usr/local/elasticsearch/plugins
            


             mkdir -p /usr/local/elasticsearch/config/scripts
            





注意:在安装过程中,不建这2个文件夹,启动时会报错,找不到这两个路径。



3.修改配置文件

cat              /usr/local/elasticsearch/config/elasticsearch             .yml            



# 换个集群的名字,免得跟别人的集群混在一起


             cluster.name: wlt-es5.0-application               


             # 换个节点名字            


             node.name: node-1            


                  
            


             path.data:              /data/elasticsearch/data            


             path.logs:              /data/elasticsearch/logs            


             
            



# 修改一下ES的监听地址,这样别的机器也可以访问


             network.host: 0.0.0.0            



# 默认的就好http.port: 9200# 增加新的参数,这样head插件可以访问es


             #http.cors.enabled:              true            


             #http.cors.allow-origin:              “*"            


             
            


 注意,设置参数的时候:后面要有空格!



4.修改系统参数

cat              /etc/security/limits             .conf            


             *               soft    nproc           65536            


             *               hard    nproc           65536            


             *               soft    nofile          65536            


             *               hard    nofile          65536            


             cat              /etc/sysctl             .conf            


             vm.max_map_count= 262144            


             sysctl -p




5.启动服务

su - elasticsearch -c "/usr/local/elasticsearch/bin/elasticsearch &”

su - elasticsearch -c "/usr/local/elasticsearch/bin/elasticsearch >/dev/null 2>&1 &”


浏览器访问:http://192.168.8.98:9200/

head插件的安装

在5.0版本中不支持直接安装head插件,需要启动一个服务

1.下载插件安装

yum -y install git


git clone git://github.com/mobz/elasticsearch-head.git

cd elasticsearch-head

npm install

elasticsearch5.0 安装流程_elastic

在elasticsearch-head目录下node_modules/grunt下如果没有grunt二进制程序,需要执行

cd elasticsearch-head

npm install grunt --save

2.修改配置


修改head源码

由于head的代码还是2.6版本的,直接执行有很多限制,比如无法跨机器访问。因此需要用户修改两个地方:

目录:head/Gruntfile.js:


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

增加hostname属性,设置为*

修改连接地址:

目录:head/_site/app.js

修改head的连接地址:



this.base_uri = this.config.base_uri || this.prefs.get("app-base_uri") || "http://localhost:9200";



把localhost修改成你es的服务器地址,如:




this.base_uri = this.config.base_uri || this.prefs.get("app-base_uri") || "http://192.168.8.98:9200";




3.启动服务

/usr/local/elasticsearch-head/node_modules/grunt/bin/gruntserver


浏览器访问:http://192.168.8.98:9100


 









错误一:



ERROR: bootstrap checks failed



max file descriptors [65535] for elasticsearch process likely too low, increase to at least [65536]



解决办法:


cat /proc/sys/fs/file-max

? If it's too low, execute  sysctl -w fs.file-max=65536
















































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