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Springboot JVM监控通过Promethus

news 来源：原创 2024/7/4 4:40:38

Springboot内置了对Prometheus得支持，可以监测得点有：

JVM各指标参数（GC，堆，非堆等）
接口调用次数，延时
系统内存，IO，CPU使用率

部署Prometheus和Grafana

准备一台2核4G或以上配置得linux系统（centos7.9、ubuntu18.04或更高版本），按下面得方式部署Prometheus和Grafana

#下载镜像
docker pull prom/prometheus
docker pull grafana/grafana#将docker里的配置拷出来
docker run --name=grafana -d  -p 3000:3000 -itd grafana/grafana
mkdir -p /docker/prometheus/grafana/data
mkdir -p /docker/prometheus/grafana
docker cp grafana:/etc/grafana/grafana.ini /docker/prometheus/grafana/#写Prometheus配置文件
vim prometheus.yml
global:scrape_interval:     15s evaluation_interval: 15s scrape_configs:- job_name: 'prometheus'static_configs:- targets: ['localhost:9090']- job_name: "ProvideAPIServices"scrape_interval: 5smetrics_path: "/actuator/prometheus"static_configs:- targets: ["172.16.0.88:8789","172.16.0.69:8789"]#启动Prometheus
docker run -d --name prometheus -p 9090:9090 -v /root/prometheus.yml:/etc/prometheus/prometheus.yml prom/prometheus#启动grafana
docker run -d -p 3000:3000 --name grafana  --restart=always -v /docker/prometheus/grafana/grafana.ini:/etc/grafana/grafana.ini -v /docker/prometheus/grafana/data:/var/lib/grafana -e "GF_SECURITY_ADMIN_PASSWORD=admin" grafana/grafana

注意两个地方

metrics_path: "/actuator/prometheus" #这里填java服务得请求路径+/actuator/prometheus，如果加了前缀，如 context-path: /abc，则为/abc/actuator/prometheus

["172.16.0.88:8789","172.16.0.69:8789"] #172.16.0.88:8789 为java服务ip+断开

修改pom.xml

加入下面依赖

jdk<=11

<dependency><groupId>io.micrometer</groupId><artifactId>micrometer-registry-prometheus</artifactId><scope>runtime</scope>
</dependency>

jdk>=17

<dependency><groupId>io.prometheus</groupId><artifactId>simpleclient_pushgateway</artifactId>
</dependency>

修改application.xml

management:endpoints:web:exposure:include: "*"   endpoint:prometheus:enabled: true #激活prometheushealth:show-details: alwaysmetrics:export:prometheus:enabled: true

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