监控软件：Prometheus

Prometheus

Prometheus是一个开源监控解决方案，用于收集和聚合指标作为时间序列数据。更简单地说，Prometheus 商店中的每个项目都是一个指标事件，并带有它发生的时间戳。

Mac 搭建Prometheus

地址：https://prometheus.io/

Mac 安装

brew install prometheus

默认安装路径：

/usr/local/Cellar/prometheus

默认配置文件：

/usr/local/etc/prometheus.yml

启动

prometheus --config.file=/usr/local/etc/prometheus.yml

访问：http://localhost:9090

Spring boot 结合

springboot的web项目，pom依赖：

    <dependencies>        <!--  web 依赖  -->        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-actuator</artifactId>        </dependency>        <dependency>            <groupId>io.micrometer</groupId>            <artifactId>micrometer-registry-prometheus</artifactId>        </dependency>    </dependencies>

Yml配置文件:

server:  port: 8080# 暴露监控端点management:  endpoints:    web:      exposure:        include: '*'

监控端点：
http://127.0.0.1:8080/actuator/prometheus

# HELP executor_queued_tasks The approximate number of tasks that are queued for execution# TYPE executor_queued_tasks gaugeexecutor_queued_tasks{name="applicationTaskExecutor",} 0.0# HELP executor_pool_max_threads The maximum allowed number of threads in the pool# TYPE executor_pool_max_threads gaugeexecutor_pool_max_threads{name="applicationTaskExecutor",} 2.147483647E9# HELP jvm_gc_pause_seconds Time spent in GC pause# TYPE jvm_gc_pause_seconds summaryjvm_gc_pause_seconds_count{action="end of major GC",cause="Metadata GC Threshold",} 1.0jvm_gc_pause_seconds_sum{action="end of major GC",cause="Metadata GC Threshold",} 0.072jvm_gc_pause_seconds_count{action="end of minor GC",cause="Metadata GC Threshold",} 1.0jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Metadata GC Threshold",} 0.014# HELP jvm_gc_pause_seconds_max Time spent in GC pause# TYPE jvm_gc_pause_seconds_max gaugejvm_gc_pause_seconds_max{action="end of major GC",cause="Metadata GC Threshold",} 0.0jvm_gc_pause_seconds_max{action="end of minor GC",cause="Metadata GC Threshold",} 0.0# HELP jvm_classes_loaded_classes The number of classes that are currently loaded in the Java virtual machine# TYPE jvm_classes_loaded_classes gaugejvm_classes_loaded_classes 7566.0# HELP jvm_gc_memory_promoted_bytes_total Count of positive increases in the size of the old generation memory pool before GC to after GC# TYPE jvm_gc_memory_promoted_bytes_total counterjvm_gc_memory_promoted_bytes_total 3235200.0# HELP tomcat_sessions_active_current_sessions  # TYPE tomcat_sessions_active_current_sessions gaugetomcat_sessions_active_current_sessions 0.0# HELP executor_pool_size_threads The current number of threads in the pool

配置 prometheus.yml

global:  scrape_interval: 15sscrape_configs:  - job_name: "prometheus"    static_configs:    - targets: ["localhost:9090"]  # 创建job   - job_name: "tomato-study-prometheus"    scrape_interval: 5s    metrics_path: '/actuator/prometheus'    static_configs:    - targets: ["localhost:8080"]

重启 prometheus：
http://localhost:9090/targets

安装 grafana

展示各种漂亮的图表。

Mac 安装

brew install grafana

默认安装路径：

/usr/local/Cellar/grafana/

启动：

grafana-server --config=/usr/local/etc/grafana/grafana.ini --homepath /usr/local/share/grafana --packaging=brew cfg:default.paths.logs=/usr/local/var/log/grafana cfg:default.paths.data=/usr/local/var/lib/grafana cfg:default.paths.plugins=/usr/local/var/lib/grafana/plugins

注：如需修改默认端口，可修改
/usr/local/etc/grafana/grafana.ini

访问：http://localhost:3000/ admin/admin

使用前必须更改密码 admin/123qwe

配置 grafana

grafana只是一个图表展示工具，必须添加数据源，才能读取到数据。

配置 Grafana DashBoard文件

推荐的 Grafana DashBoard：

JVM (Micrometer)-(https://grafana.com/grafana/dashboards/4701)

Spring Boot 2.1 Statistics -(https://grafana.com/grafana/dashboards/10280)

Node Exporter – (https://grafana.com/grafana/dashboards/8919)

Druid – https://grafana.com/grafana/dashboards/11157

主机基础监控-(
https://grafana.com/grafana/dashboards/9276)

最终展示效果：