ELK套件（ELK stack）是指ElasticSearch、Logstash和Kibana三件套。这三个软件可以组成一套日志分析和监控工具。
环境准备
为了正常使用HTTP服务等，需要关闭防火墙：
#serviceiptablesstop
或者可以不关闭防火墙，但是要在iptables中打开相关的端口：
#vim/etc/sysconfig/iptables -AINPUT-mstate--stateNEW-mtcp-ptcp--dport80-jACCEPT -AINPUT-mstate--stateNEW-mtcp-ptcp--dport9200-jACCEPT -AINPUT-mstate--stateNEW-mtcp-ptcp--dport9292-jACCEPT #serviceiptablesrestart
安装JDK
#yum-yinstalljava-1.7.0-openjdk*
#java-version
#mkdir-p/opt/software&&cd/opt/software #wgethttps://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.4.2.tar.gz #tar-zxvfelasticsearch-1.4.2.tar.gz-C/usr/local/ #ln-s/usr/local/elasticsearch-1.4.2/usr/local/elasticsearch
安装elasticsearch-servicewrapper，并启动ElasticSearch服务：
#sudowgethttps://github.com/elasticsearch/elasticsearch-servicewrapper/archive/master.tar.gz #sudotar-zxvfmaster #mv/opt/software/elasticsearch-servicewrapper-master/service/usr/local/elasticsearch/bin/ #/usr/local/elasticsearch/bin/service/elasticsearchstart
测试ElasticSearch服务是否正常，预期返回200的状态码：
#curl-XGEThttp://localhost:9200
安装Logstash
#sudowgethttps://download.elasticsearch.org/logstash/logstash/logstash-1.4.2.tar.gz #sudotar-zxvflogstash-1.4.2.tar.gz-C/usr/local/ #ln-s/usr/local/logstash-1.4.2/usr/local/logstash
简单测试Logstash服务是否正常
#/usr/local/logstash/bin/logstash-e'input{stdin{}}output{stdout{}}'
#mkdir-p/usr/local/logstash/etc
#vim/usr/local/logstash/etc/hello_search.conf
input{
stdin{
type=>"human"
}
}
output{
stdout{
codec=>rubydebug
}
elasticsearch{
host=>"192.168.1.22"
port=>9300
}
}
#/usr/local/logstash/bin/logstash-f/usr/local/logstash/etc/hello_search.conf
安装Kibana
#sudowgethttps://download.elasticsearch.org/kibana/kibana/kibana-3.1.2.tar.gz #sudotar-zxvfkibana-3.1.2.tar.gz #mvkibana-3.1.2/var/www/html/kibana
修改Kibana的配置文件，把elasticsearch所在行的内容替换成如下
#vim/var/www/html/kibana/config.js elasticsearch:"http://192.168.1.22:9200",
修改ElasticSearch的配置文件，追加一行内容，并重启ElasticSearch服务：
#vim/usr/local/elasticsearch/config/elasticsearch.yml http.cors.enabled:true #/usr/local/elasticsearch/bin/service/elasticsearchrestart
浏览器访问Kibana
http://10.111.121.22/kibana
配置Logstash
#vim/usr/local/logstash/etc/logstash_agent.conf
input{
file{
type=>"http.access"
path=>["/var/log/httpd/access_log"]
}
file{
type=>"http.error"
path=>["/var/log/httpd/error_log"]
}
file{
type=>"messages"
path=>["/var/log/messages"]
}
}
output{
elasticsearch{
host=>"10.111.121.22"
port=>9300
}
}
#nohup/usr/local/logstash/bin/logstash-f/usr/local/logstash/etc/logstash_agent.conf&
一个简单的日志分析和监控平台就搭建好了，可以使用Kibana进行查看。
