1、下載相關資源

專案地址: https://github.com/prometheus/jmx_exporter

jar包下載地址:

https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.3.1/jmx_prometheus_javaagent-0.3.1.jar

配置檔案例項地址:

 https://github.com/prometheus/jmx_exporter/blob/master/example_configs/tomcat.yml

vim /apps/tomcat8/bin/jmx-exporter.yaml

配置檔案

--- 
​
lowercaseOutputLabelNames: true
​
lowercaseOutputName: true
​
rules:
​
\- pattern: 'Catalina<type=GlobalRequestProcessor, name=\"(\w+-\w+)-(\d+)\"><>(\w+):'
​
 name: tomcat_$3_total
​
 labels:
​
  port: "$2"
​
  protocol: "$1"
​
 help: Tomcat global $3
​
 type: COUNTER
​
\- pattern: 'Catalina<j2eeType=Servlet, WebModule=//([-a-zA-Z0-9+&@#/%?=~_|!:.,;]*[-a-zA-Z0-9+&@#/%=~_|]), name=([-a-zA-Z0-9+/$%~_-|!.]*), J2EEApplication=none, J2EEServer=none><>(requestCount|maxTime|processingTime|errorCount):'
​
 name: tomcat_servlet_$3_total
​
 labels:
​
  module: "$1"
​
  servlet: "$2"
​
 help: Tomcat servlet $3 total
​
 type: COUNTER
​
\- pattern: 'Catalina<type=ThreadPool, name="(\w+-\w+)-(\d+)"><>(currentThreadCount|currentThreadsBusy|keepAliveCount|pollerThreadCount|connectionCount):'
​
 name: tomcat_threadpool_$3
​
 labels:
​
  port: "$2"
​
  protocol: "$1"
​
 help: Tomcat threadpool $3
​
 type: GAUGE
​
\- pattern: 'Catalina<type=Manager, host=([-a-zA-Z0-9+&@#/%?=~_|!:.,;]*[-a-zA-Z0-9+&@#/%=~_|]), context=([-a-zA-Z0-9+/$%~_-|!.]*)><>(processingTime|sessionCounter|rejectedSessions|expiredSessions):'
​
 name: tomcat_session_$3_total
​
 labels:
​
  context: "$2"
​
  host: "$1"
​
 help: Tomcat session $3 total
​
 type: COUNTER
​
\- pattern: ".*" #讓所有的jmx metrics全部暴露出來
​
放在tomcat bin目錄，編輯tomcat檔案/apps/tomcat8/bin/catalina.sh
​
vim /apps/tomcat8/bin/catalina.sh
​
export JAVA_OPTS=" -javaagent:/apps/tomcat8/bin/jmx_prometheus_javaagent-0.3.1.jar=20001:/apps/tomcat8/bin/jmx-exporter.yaml"
 

重啟tomcat

測試能否採集到資料

curl -s http://192.168.168.242:20001/ | more

2、配置Prometheus

加入監控項

vim /usr/local/prometheus/prometheus.yml

  - job_name: 'tomcat'
   file_sd_configs:
   - files: ['/usr/local/prometheus/sd_config/tomcat.yml']
    refresh_interval: 180s

vim /usr/local/prometheus/sd_config/tomcat.yml

- targets:
  - 192.168.168.242:20001
  labels:
   idc: bj_company
   service: tomcat
 

過載配置檔案

kill -hup `ps -ef |grep prometheus|grep -v grep|awk '{print $2}'`

到Prometheus控制檯查詢

8563

匯入模板, 需要略作修改就可以使用了