监控软件：Prometheus _监控软件

PrometheusPrometheus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><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

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【监控软件：Prometheus】
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: 5smetrics_path: '/actuator/prometheus'static_configs:- targets: ["localhost:8080"]

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

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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=https://www.isolves.com/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 grafanagrafana只是一个图表展示工具，必须添加数据源，才能读取到数据。