# 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
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