javaagent监控tomcat_Promethues如何监控Tomcat

Promethues 监控tomcat 主要用的模块

Promethus 负载抓取/存储指标信息、并提供查询功能

grafana 数据可视化

JMX exporter 提供JMX中JVM相关的metrics

1、利用JMX exporter&＃xff0c;在Java进程内启动一个小型的Http server 2、配置Prometheus抓取那个Http server提供的metrics。3、配置Grafana连接Prometheus&＃xff0c;配置Dashboard。

一、下载一个tomcat,下载jmx_exporter

1、获取jmx_exporter有2种方法&＃xff0c;自己编译获取jar包&＃xff0c;获取现成的jar包

wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.12.0/jmx_prometheus_javaagent-0.12.0.jar

或者编译

git clone https://github.com/prometheus/jmx_exporter

cd jmx_exporter

mvn package

2、安装tomcat

wget http://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.51/bin/apache-tomcat-8.5.51.tar.gz

tar zxvf apache-tomcat-8.5.51.tar.gz

mv apache-tomcat-8.5.51 /usr/localt/tomcat_test

3、配置文件下载

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

tomcat.yml的内容如下

---

lowercaseOutputLabelNames: true

lowercaseOutputName: true

rules:

- pattern: &＃39;Catalina<>(\w&＃43;):&＃39;

name: tomcat_$3_total

labels:

port: "$2"

protocol: "$1"

help: Tomcat global $3

type: COUNTER

- pattern: &＃39;Catalina<>(requestCount|maxTime|processingTime|errorCount):&＃39;

name: tomcat_servlet_$3_total

labels:

module: "$1"

servlet: "$2"

help: Tomcat servlet $3 total

type: COUNTER

- pattern: &＃39;Catalina<>(currentThreadCount|currentThreadsBusy|keepAliveCount|pollerThreadCount|connectionCount):&＃39;

name: tomcat_threadpool_$3

labels:

port: "$2"

protocol: "$1"

help: Tomcat threadpool $3

type: GAUGE

- pattern: &＃39;Catalina<>(processingTime|sessionCounter|rejectedSessions|expiredSessions):&＃39;

name: tomcat_session_$3_total

labels:

context: "$2"

host: "$1"

help: Tomcat session $3 total

type: COUNTER

4、收集数据 4-1、Tomcat收集数据

mkdir /usr/local/tomcat_test/jmx/

cp jmx_prometheus_javaagent-0.12.0.jar /usr/local/tomcat_test/jmx/

cp tomcat.yml /usr/local/tomcat_test/jmx/

修改配置文件vim /usr/local/tomcat_test/bin/catalina.sh

JAVA_OPTS&＃61;"-javaagent:/usr/local/tomcat_test/jmx/jmx_prometheus_javaagent-0.12.0.jar&＃61;39081:/usr/local/tomcat_test/jmx/tomcat.yml"

4-2、JAR包运行(案例&＃xff0c;关键文件jmx_prometheus_javaagent-0.3.0.jar和tomcat.yml)

java -javaagent:./jmx_prometheus_javaagent-0.3.0.jar&＃61;9151:tomcat.yaml -jar yourJar.jar

5、 测试是否收集到数据 curl -s http://localhost:39081/ | more

[root&＃64;Prometheus promethus]# curl -s http://localhost:39081/ | more

# HELP jmx_exporter_build_info A metric with a constant &＃39;1&＃39; value labeled with the version of the JMX exporter.

# TYPE jmx_exporter_build_info gauge

jmx_exporter_build_info{version&＃61;"0.12.0",name&＃61;"jmx_prometheus_javaagent",} 1.0

# HELP jmx_config_reload_success_total Number of times configuration have successfully been reloaded.

# TYPE jmx_config_reload_success_total counter

jmx_config_reload_success_total 0.0

# HELP jmx_config_reload_failure_total Number of times configuration have failed to be reloaded.

# TYPE jmx_config_reload_failure_total counter

jmx_config_reload_failure_total 0.0

# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.

# TYPE process_cpu_seconds_total counter

process_cpu_seconds_total 3.99

# HELP process_start_time_seconds Start time of the process since unix epoch in seconds.

# TYPE process_start_time_seconds gauge

process_start_time_seconds 1.582290765496E9

# HELP process_open_fds Number of open file descriptors.

# TYPE process_open_fds gauge

process_open_fds 74.0

二、配置promethus 采集数据

1、文件引用 (本文采用) /usr/local/prometheus/prometheus.yml

- job_name: &＃39;tomcat&＃39;

file_sd_configs:

- files: [&＃39;/usr/local/prometheus/conf/tomcat.yml&＃39;]

refresh_interval: 180s

/usr/local/prometheus/conf/tomcat.yml/tomcat.yml

- targets:

- 114.67.116.119:39081

labels:

idc: test_idc

service: tomcat_test

2、直接配置

scrape_configs:

- job_name: &＃39;java&＃39;

static_configs:

- targets: [&＃39;114.67.116.119:39081&＃39;]

3、重载配置文件

kill -hup &＃96;ps -ef |grep prometheus|grep -v grep|awk &＃39;{print $2}&＃39;&＃96;

或者

kill -9 PID

/usr/local/prometheus/prometheus --config.file&＃61;/usr/local/prometheus/prometheus.yml

4、查看promethus界面&＃xff0c;tomcat的监控是否发现

三、grafana 数据可视化

导入模板 8563

名称对应 promethus.yml的job名称

展示tomcat监控大屏