ELK套件(ELK stack)是指ElasticSearch、Logstash和Kibana三件套。這三個軟件能夠組成一套日誌分析和監控工具。html
因爲三個軟件各自的版本號太多,建議採用ElasticSearch官網推薦的搭配組合:http://www.elasticsearch.org/overview/elkdownloads/java
本文把ELK套件部署在一臺CentOS單機上。git
具體的版本要求以下:github
操做系統版本:CentOS 6.4;vim
JDK版本:1.7.0;瀏覽器
Logstash版本:1.4.2;ruby
ElasticSearch版本:1.4.2;app
Kibana版本:3.1.2;cors
爲了正常使用HTTP服務等,須要關閉防火牆:curl
# service iptables stop
# service iptables stop
或者能夠不關閉防火牆,可是要在iptables中打開相關的端口:
# vim /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9200 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9292 -j ACCEPT
# service iptables restart
# vim /etc/sysconfig/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 9200 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 9292 -j ACCEPT # service iptables restart
ElasticSearch和Logstash依賴於JDK,因此須要安裝JDK:
# yum -y install java-1.7.0-openjdk*
# java -version
# yum -y install java-1.7.0-openjdk* # java -version
ElasticSearch默認的對外服務的HTTP端口是9200,節點間交互的TCP端口是9300。
下載ElasticSearch:
# mkdir -p /opt/software && cd /opt/software
# sudo wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.4.2.tar.gz
# sudo tar -zxvf elasticsearch-1.4.2.tar.gz -C /usr/local/
# ln -s /usr/local/elasticsearch-1.4.2 /usr/local/elasticsearch
# mkdir -p /opt/software && cd /opt/software # sudo wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.4.2.tar.gz # sudo tar -zxvf elasticsearch-1.4.2.tar.gz -C /usr/local/ # ln -s /usr/local/elasticsearch-1.4.2 /usr/local/elasticsearch
安裝elasticsearch-servicewrapper,並啓動ElasticSearch服務:
# sudo wget https://github.com/elasticsearch/elasticsearch-servicewrapper/archive/master.tar.gz
# sudo tar -zxvf master
# mv /opt/software/elasticsearch-servicewrapper-master/service /usr/local/elasticsearch/bin/
# /usr/local/elasticsearch/bin/service/elasticsearch start
# sudo wget https://github.com/elasticsearch/elasticsearch-servicewrapper/archive/master.tar.gz # sudo tar -zxvf master # mv /opt/software/elasticsearch-servicewrapper-master/service /usr/local/elasticsearch/bin/ # /usr/local/elasticsearch/bin/service/elasticsearch start
測試ElasticSearch服務是否正常,預期返回200的狀態碼:
# curl -X GET http://localhost:9200
# curl -X GET http://localhost:9200
Logstash默認的對外服務的端口是9292
下載Logstash:
# sudo wget https://download.elasticsearch.org/logstash/logstash/logstash-1.4.2.tar.gz
# sudo tar -zxvf logstash-1.4.2.tar.gz -C /usr/local/
# ln -s /usr/local/logstash-1.4.2 /usr/local/logstash
# sudo wget https://download.elasticsearch.org/logstash/logstash/logstash-1.4.2.tar.gz # sudo tar -zxvf logstash-1.4.2.tar.gz -C /usr/local/ # ln -s /usr/local/logstash-1.4.2 /usr/local/logstash
簡單測試Logstash服務是否正常,預期能夠將輸入內容以簡單的日誌形式打印在界面上:
# /usr/local/logstash/bin/logstash -e 'input { stdin { } } output { stdout {} }'
# /usr/local/logstash/bin/logstash -e 'input { stdin { } } output { stdout {} }'
建立Logstash配置文件,並再次測試Logstash服務是否正常,預期能夠將輸入內容以結構化的日誌形式打印在界面上:
# mkdir -p /usr/local/logstash/etc
# vim /usr/local/logstash/etc/hello_search.conf
input {
stdin {
type => "human"
}
}
output {
stdout {
codec => rubydebug
}
elasticsearch {
host => "10.111.121.22"
port => 9300
}
}
# /usr/local/logstash/bin/logstash -f /usr/local/logstash/etc/hello_search.conf
# mkdir -p /usr/local/logstash/etc # vim /usr/local/logstash/etc/hello_search.conf input { stdin { type => "human" } } output { stdout { codec => rubydebug } elasticsearch { host => "10.111.121.22" port => 9300 } } # /usr/local/logstash/bin/logstash -f /usr/local/logstash/etc/hello_search.conf
CentOS默認預裝了Apache,因此將Kibana的代碼直接拷貝到Apache能夠訪問的目錄下便可
# sudo wget https://download.elasticsearch.org/kibana/kibana/kibana-3.1.2.tar.gz
# sudo tar -zxvf kibana-3.1.2.tar.gz
# mv kibana-3.1.2 /var/www/html/kibana
# sudo wget https://download.elasticsearch.org/kibana/kibana/kibana-3.1.2.tar.gz # sudo tar -zxvf kibana-3.1.2.tar.gz # mv kibana-3.1.2 /var/www/html/kibana
修改Kibana的配置文件,把elasticsearch所在行的內容替換成以下:
# vim /var/www/html/kibana/config.js
elasticsearch: "http://10.111.121.22:9200",
# vim /var/www/html/kibana/config.js elasticsearch: "http://10.111.121.22:9200",
啓動一下HTTP服務:
# service httpd start
# service httpd start
修改ElasticSearch的配置文件,追加一行內容,並重啓ElasticSearch服務:
# vim /usr/local/elasticsearch/config/elasticsearch.yml
http.cors.enabled: true
# /usr/local/elasticsearch/bin/service/elasticsearch restart
# vim /usr/local/elasticsearch/config/elasticsearch.yml http.cors.enabled: true # /usr/local/elasticsearch/bin/service/elasticsearch restart
而後就能夠經過瀏覽器訪問Kibana了:
http://10.111.121.22/kibana
http://10.111.121.22/kibana
如今,在以前的Logstash會話中輸入任意字符,就能夠在Kibana中查看到日誌狀況。
再次建立Logstash配置文件,這裏將HTTP日誌和文件系統日誌做爲輸入,輸出直接傳給ElasticSearch,再也不打印在界面上:
# 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 &
# 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 &