prometheus实战使用四种Metrics指标

待我称王封你为后i 2022-09-12 07:49 336阅读 0赞

项目中四种指标的配置，和大家详细分享：

配置项目基本信息参考：[参考基本配置][Link 1]

1、springboot 配置四种指标：

package com.nandao.demo.config;
    
    import io.micrometer.core.instrument.Counter;
    import io.micrometer.core.instrument.Gauge;
    import io.micrometer.core.instrument.MeterRegistry;
    import io.micrometer.core.instrument.Timer;
    import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
    import io.micrometer.prometheus.PrometheusMeterRegistry;
    import io.prometheus.client.Histogram;
    import io.prometheus.client.Summary;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    import java.util.Random;
    import java.util.concurrent.atomic.AtomicInteger;
    import java.util.function.Supplier;
    
    /**
     * @author wanghuainan
     * @date 2021/9/22
     */
    @Configuration
    public class PrometheusMetricsConfig {
    
        @Autowired
        private PrometheusMeterRegistry registry;
    
        @Autowired
        private MeterRegistry meterRegistry;
    
        /**
         * 只增不减的计数器
         * @return
         */
        @Bean
        Counter getCounter(){
            return Counter.builder("pc_test_counter").tag("key", "value").register(meterRegistry);
        }
    
        /**
         * 只增不减的计数器
         * @return
         */
        @Bean
        Counter createCounter(){
           return Counter.builder("name")  //名称
                    .baseUnit("unit") //基础单位
                    .description("desc") //描述
                    .tag("tagKey", "tagValue")//标签
                    .tags("a","A","b","B","c","C") //标签list
                    .register(new SimpleMeterRegistry());//绑定的MeterRegistry
        }
    
        /**
         * 可增可减的仪表盘
         * @return
         */
        @Bean
        Gauge getGauge(){
           return Gauge.builder("test_builder", new Supplier<Number>() {
                @Override
                public Number get() {
                    return new Random().nextDouble();
                }
            }).register(meterRegistry);
        }
    
        AtomicInteger atomicInteger = new AtomicInteger();
        /**
         * 可增可减的仪表盘
         * @return
         */
        @Bean
        Gauge createGauge(){
            return Gauge
                    .builder("gauge",atomicInteger, AtomicInteger::get)
                    .description("a description of what this gauge does") // 可选
                    .tags("region", "test") // 可选
                    .register(registry);
        }
    
        /**
         * 柱状图
         * @return
         */
        @Bean
        Histogram getHistogram(){
            return Histogram.build().labelNames("application","uri", "accessType", "code","msg")
                    .name("pc_cost_histogram").help("请求耗时histogram")
                    .buckets(100,500,1000,3000).register(registry.getPrometheusRegistry());
        }
    
        /**
         * timmer也属于summary，默认单位sencond,并统计max值
         * @return
         */
        @Bean
        Timer getTimer(){
            return Timer
                    .builder("my.timer")
                    .description("a description of what this timer does") // 可选
                    .tags("region", "test") // 可选
                    .register(registry);
        }
    
        /**
         * 摘要分析
         * @return
         */
        @Bean
        Summary getSummary(){
            return  Summary.build().labelNames("application","uri", "accessType", "code","msg")
                    .name("pc_cost_summary").help("请求耗时summary")
                    .quantile(0.5, 0.05)
                    .quantile(0.9, 0.01)
                    .register(registry.getPrometheusRegistry());
        }
    
    }

2、AOP切面部分伪代码展示：

/**
         * 定义注册器
         */
        @Autowired
        MeterRegistry registry;
    
       // @Autowired
      //  private PrometheusMeterRegistry registry;//也可以用
    
        @Autowired
        Histogram histogram;
        @Autowired
        Summary summary;
    
        @Value("${server.servlet.context-path}")
        private String applicationName;
    
    
        @AfterReturning(returning = "returnVal", pointcut = "pointCut()")
        public void doAftereReturning(JoinPoint joinPoint,Object returnVal){
    
            String classMethod = getClassMethodName(joinPoint);
            /**
             * timmer也属于summary，默认单位sencond,并统计max值
             */
            Tag tag1 = new ImmutableTag("uri", classMethod);
            Tag tag2 = null;
            Tag tag3 = null;
            R r = null;
            if(returnVal instanceof R){
                 r = (R) returnVal;
                 tag2 = new ImmutableTag("code", r.getCode() + "");
                 tag3 = new ImmutableTag("msg", r.getMsg());
                summary.labels(applicationName,classMethod,"1",r.getCode()+"",r.getMsg()).observe(9);
                histogram.labels(applicationName,classMethod,"1",r.getCode()+"",r.getMsg()).observe(7);
            }else {
                 tag2 = new ImmutableTag("code", "888");
                 tag3 = new ImmutableTag("msg", "返回值不是R对象");
                summary.labels(applicationName,classMethod,"1","999","不是R").observe(9);
                histogram.labels(applicationName,classMethod,"1","999","不是R").observe(7);
            }
            registry.timer("api_cost_timer", Lists.newArrayList(tag1, tag2, tag3)).record(8, TimeUnit.MILLISECONDS);
    
            AtomicLong app_reponse_usedtime = null;
            app_reponse_usedtime = registry.gauge("pc_reponse_usedtime", new AtomicLong(0));
            log.info("开始时间：[{}]存的时间[{}]",startTime.get(),app_reponse_usedtime.get());
        //    app_reponse_usedtime.set((System.currentTimeMillis() - startTime.get()));
           // System.out.println("请求执行时间：" + (System.currentTimeMillis() - startTime.get()));
        }
    
    //只增指标
    private void addTsetCount(String tableName) {
            Optional<String> opt = SecurityUtils.getCurrentUserLogin();
            String[]  tags = new String[4];
            if(opt.isPresent()){
                tags[0] = "sysKey";
                tags[1] = opt.get();
            }
            tags[2] ="tableName";
            tags[3] =tableName;
            Metrics.counter("pc_add_count",tags).increment();
     
        }

3、启动后调业务接口若干次：

testError/testThrow等接口。

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAbmFuZGFvMTU4_size_20_color_FFFFFF_t_70_g_se_x_16][]

4、 最后请求[ http://127.0.0.1:8081/nandao-pc-api/actuator/prometheus/][http_127.0.0.1_8081_nandao-pc-api_actuator_prometheus]

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAbmFuZGFvMTU4_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

5、分析指标数据：

# HELP tomcat_global_request_max_seconds  
    # TYPE tomcat_global_request_max_seconds gauge
    tomcat_global_request_max_seconds{application="/nandao-pc-api",name="http-nio-8081",} 0.098
    # HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management
    # TYPE jvm_memory_max_bytes gauge
    jvm_memory_max_bytes{application="/nandao-pc-api",area="nonheap",id="Compressed Class Space",} 1.073741824E9
    jvm_memory_max_bytes{application="/nandao-pc-api",area="nonheap",id="Code Cache",} 2.5165824E8
    jvm_memory_max_bytes{application="/nandao-pc-api",area="nonheap",id="Metaspace",} -1.0
    jvm_memory_max_bytes{application="/nandao-pc-api",area="heap",id="PS Old Gen",} 2.863661056E9
    jvm_memory_max_bytes{application="/nandao-pc-api",area="heap",id="PS Eden Space",} 1.298137088E9
    jvm_memory_max_bytes{application="/nandao-pc-api",area="heap",id="PS Survivor Space",} 5.8195968E7
    # HELP pc_all_online_count  
    # TYPE pc_all_online_count gauge
    pc_all_online_count{application="/nandao-pc-api",} 0.0
    # HELP tomcat_threads_busy_threads  
    # TYPE tomcat_threads_busy_threads gauge
    tomcat_threads_busy_threads{application="/nandao-pc-api",name="http-nio-8081",} 1.0
    # HELP process_uptime_seconds The uptime of the Java virtual machine
    # TYPE process_uptime_seconds gauge
    process_uptime_seconds{application="/nandao-pc-api",} 93.349
    # HELP tomcat_threads_current_threads  
    # TYPE tomcat_threads_current_threads gauge
    tomcat_threads_current_threads{application="/nandao-pc-api",name="http-nio-8081",} 10.0
    # HELP tomcat_sessions_active_max_sessions  
    # TYPE tomcat_sessions_active_max_sessions gauge
    tomcat_sessions_active_max_sessions{application="/nandao-pc-api",} 0.0
    # HELP jvm_gc_pause_seconds Time spent in GC pause
    # TYPE jvm_gc_pause_seconds summary
    jvm_gc_pause_seconds_count{action="end of minor GC",application="/nandao-pc-api",cause="Allocation Failure",} 7.0
    jvm_gc_pause_seconds_sum{action="end of minor GC",application="/nandao-pc-api",cause="Allocation Failure",} 0.216
    # HELP jvm_gc_pause_seconds_max Time spent in GC pause
    # TYPE jvm_gc_pause_seconds_max gauge
    jvm_gc_pause_seconds_max{action="end of minor GC",application="/nandao-pc-api",cause="Allocation Failure",} 0.055
    # HELP jvm_threads_daemon_threads The current number of live daemon threads
    # TYPE jvm_threads_daemon_threads gauge
    jvm_threads_daemon_threads{application="/nandao-pc-api",} 23.0
    # HELP pc_reponse_usedtime  
    # TYPE pc_reponse_usedtime gauge
    pc_reponse_usedtime{application="/nandao-pc-api",} 0.0
    # HELP tomcat_sessions_active_current_sessions  
    # TYPE tomcat_sessions_active_current_sessions gauge
    tomcat_sessions_active_current_sessions{application="/nandao-pc-api",} 0.0
    # HELP jvm_gc_max_data_size_bytes Max size of old generation memory pool
    # TYPE jvm_gc_max_data_size_bytes gauge
    jvm_gc_max_data_size_bytes{application="/nandao-pc-api",} 0.0
    # HELP system_cpu_usage The "recent cpu usage" for the whole system
    # TYPE system_cpu_usage gauge
    system_cpu_usage{application="/nandao-pc-api",} 0.0
    # HELP jvm_threads_peak_threads The peak live thread count since the Java virtual machine started or peak was reset
    # TYPE jvm_threads_peak_threads gauge
    jvm_threads_peak_threads{application="/nandao-pc-api",} 30.0
    # HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool
    # TYPE jvm_buffer_memory_used_bytes gauge
    jvm_buffer_memory_used_bytes{application="/nandao-pc-api",id="mapped",} 0.0
    jvm_buffer_memory_used_bytes{application="/nandao-pc-api",id="direct",} 3424257.0
    # HELP jvm_classes_loaded_classes The number of classes that are currently loaded in the Java virtual machine
    # TYPE jvm_classes_loaded_classes gauge
    jvm_classes_loaded_classes{application="/nandao-pc-api",} 10045.0
    # HELP pc_reponse_throw_count_total  
    # TYPE pc_reponse_throw_count_total counter
    pc_reponse_throw_count_total{aop_method="PrometheusController.testThrow",application="/nandao-pc-api",} 2.0
    # HELP tomcat_global_error_total  
    # TYPE tomcat_global_error_total counter
    tomcat_global_error_total{application="/nandao-pc-api",name="http-nio-8081",} 0.0
    # HELP tomcat_sessions_alive_max_seconds  
    # TYPE tomcat_sessions_alive_max_seconds gauge
    tomcat_sessions_alive_max_seconds{application="/nandao-pc-api",} 0.0
    # HELP process_files_max_files The maximum file descriptor count
    # TYPE process_files_max_files gauge
    process_files_max_files{application="/nandao-pc-api",} 10240.0
    # HELP pc_reponse_usedtime_seconds  
    # TYPE pc_reponse_usedtime_seconds summary
    pc_reponse_usedtime_seconds_count{application="/nandao-pc-api",method_name="PrometheusController.testThrow",} 2.0
    pc_reponse_usedtime_seconds_sum{application="/nandao-pc-api",method_name="PrometheusController.testThrow",} 0.012358552
    pc_reponse_usedtime_seconds_count{application="/nandao-pc-api",method_name="PrometheusController.testError",} 2.0
    pc_reponse_usedtime_seconds_sum{application="/nandao-pc-api",method_name="PrometheusController.testError",} 0.044420894
    pc_reponse_usedtime_seconds_count{application="/nandao-pc-api",method_name="PrometheusController.testString",} 2.0
    pc_reponse_usedtime_seconds_sum{application="/nandao-pc-api",method_name="PrometheusController.testString",} 0.003582891
    pc_reponse_usedtime_seconds_count{application="/nandao-pc-api",method_name="PrometheusController.testIsUsable",} 2.0
    pc_reponse_usedtime_seconds_sum{application="/nandao-pc-api",method_name="PrometheusController.testIsUsable",} 1.17525E-4
    # HELP pc_reponse_usedtime_seconds_max  
    # TYPE pc_reponse_usedtime_seconds_max gauge
    pc_reponse_usedtime_seconds_max{application="/nandao-pc-api",method_name="PrometheusController.testThrow",} 0.010265866
    pc_reponse_usedtime_seconds_max{application="/nandao-pc-api",method_name="PrometheusController.testError",} 0.044225301
    pc_reponse_usedtime_seconds_max{application="/nandao-pc-api",method_name="PrometheusController.testString",} 0.003564689
    pc_reponse_usedtime_seconds_max{application="/nandao-pc-api",method_name="PrometheusController.testIsUsable",} 8.5057E-5
    # HELP tomcat_global_request_seconds  
    # TYPE tomcat_global_request_seconds summary
    tomcat_global_request_seconds_count{application="/nandao-pc-api",name="http-nio-8081",} 8.0
    tomcat_global_request_seconds_sum{application="/nandao-pc-api",name="http-nio-8081",} 0.21
    # HELP process_start_time_seconds Start time of the process since unix epoch.
    # TYPE process_start_time_seconds gauge
    process_start_time_seconds{application="/nandao-pc-api",} 1.632312533736E9
    # HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool
    # TYPE jvm_buffer_count_buffers gauge
    jvm_buffer_count_buffers{application="/nandao-pc-api",id="mapped",} 0.0
    jvm_buffer_count_buffers{application="/nandao-pc-api",id="direct",} 47.0
    # HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
    # TYPE jvm_memory_committed_bytes gauge
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="nonheap",id="Compressed Class Space",} 7471104.0
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="nonheap",id="Code Cache",} 1.0616832E7
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="nonheap",id="Metaspace",} 5.4657024E7
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="heap",id="PS Old Gen",} 1.69869312E8
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="heap",id="PS Eden Space",} 5.55220992E8
    jvm_memory_committed_bytes{application="/nandao-pc-api",area="heap",id="PS Survivor Space",} 5.8195968E7
    # HELP tomcat_threads_config_max_threads  
    # TYPE tomcat_threads_config_max_threads gauge
    tomcat_threads_config_max_threads{application="/nandao-pc-api",name="http-nio-8081",} 200.0
    # HELP pc_reponse_error_count_total  
    # TYPE pc_reponse_error_count_total counter
    pc_reponse_error_count_total{aop_method="PrometheusController.testError",application="/nandao-pc-api",} 2.0
    # HELP jvm_memory_used_bytes The amount of used memory
    # TYPE jvm_memory_used_bytes gauge
    jvm_memory_used_bytes{application="/nandao-pc-api",area="nonheap",id="Compressed Class Space",} 6807240.0
    jvm_memory_used_bytes{application="/nandao-pc-api",area="nonheap",id="Code Cache",} 1.047808E7
    jvm_memory_used_bytes{application="/nandao-pc-api",area="nonheap",id="Metaspace",} 5.1252416E7
    jvm_memory_used_bytes{application="/nandao-pc-api",area="heap",id="PS Old Gen",} 6.2198432E7
    jvm_memory_used_bytes{application="/nandao-pc-api",area="heap",id="PS Eden Space",} 1.69614168E8
    jvm_memory_used_bytes{application="/nandao-pc-api",area="heap",id="PS Survivor Space",} 5.8176656E7
    # HELP app_requests_method_count_total  
    # TYPE app_requests_method_count_total counter
    app_requests_method_count_total{application="/nandao-pc-api",method="PrometheusController.core",} 0.0
    app_requests_method_count_total{application="/nandao-pc-api",method="PrometheusController.index",} 2.0
    # HELP api_cost_timer_seconds_max  
    # TYPE api_cost_timer_seconds_max gauge
    api_cost_timer_seconds_max{application="/nandao-pc-api",code="100",msg="参数错误",uri="PrometheusController.testError",} 0.008
    api_cost_timer_seconds_max{application="/nandao-pc-api",code="105",msg="系统错误",uri="PrometheusController.testThrow",} 0.008
    api_cost_timer_seconds_max{application="/nandao-pc-api",code="1",msg="SUCCESS",uri="PrometheusController.testIsUsable",} 0.008
    api_cost_timer_seconds_max{application="/nandao-pc-api",code="888",msg="返回值不是R对象",uri="PrometheusController.testString",} 0.008
    # HELP api_cost_timer_seconds  
    # TYPE api_cost_timer_seconds summary
    api_cost_timer_seconds_count{application="/nandao-pc-api",code="100",msg="参数错误",uri="PrometheusController.testError",} 2.0
    api_cost_timer_seconds_sum{application="/nandao-pc-api",code="100",msg="参数错误",uri="PrometheusController.testError",} 0.016
    api_cost_timer_seconds_count{application="/nandao-pc-api",code="105",msg="系统错误",uri="PrometheusController.testThrow",} 2.0
    api_cost_timer_seconds_sum{application="/nandao-pc-api",code="105",msg="系统错误",uri="PrometheusController.testThrow",} 0.016
    api_cost_timer_seconds_count{application="/nandao-pc-api",code="1",msg="SUCCESS",uri="PrometheusController.testIsUsable",} 2.0
    api_cost_timer_seconds_sum{application="/nandao-pc-api",code="1",msg="SUCCESS",uri="PrometheusController.testIsUsable",} 0.016
    api_cost_timer_seconds_count{application="/nandao-pc-api",code="888",msg="返回值不是R对象",uri="PrometheusController.testString",} 2.0
    api_cost_timer_seconds_sum{application="/nandao-pc-api",code="888",msg="返回值不是R对象",uri="PrometheusController.testString",} 0.016
    # HELP jvm_threads_states_threads The current number of threads having NEW state
    # TYPE jvm_threads_states_threads gauge
    jvm_threads_states_threads{application="/nandao-pc-api",state="blocked",} 0.0
    jvm_threads_states_threads{application="/nandao-pc-api",state="waiting",} 13.0
    jvm_threads_states_threads{application="/nandao-pc-api",state="terminated",} 0.0
    jvm_threads_states_threads{application="/nandao-pc-api",state="new",} 0.0
    jvm_threads_states_threads{application="/nandao-pc-api",state="timed-waiting",} 4.0
    jvm_threads_states_threads{application="/nandao-pc-api",state="runnable",} 10.0
    # HELP tomcat_global_received_bytes_total  
    # TYPE tomcat_global_received_bytes_total counter
    tomcat_global_received_bytes_total{application="/nandao-pc-api",name="http-nio-8081",} 0.0
    # HELP jvm_threads_live_threads The current number of live threads including both daemon and non-daemon threads
    # TYPE jvm_threads_live_threads gauge
    jvm_threads_live_threads{application="/nandao-pc-api",} 27.0
    # HELP system_load_average_1m The sum of the number of runnable entities queued to available processors and the number of runnable entities running on the available processors averaged over a period of time
    # TYPE system_load_average_1m gauge
    system_load_average_1m{application="/nandao-pc-api",} 5.7978515625
    # HELP process_files_open_files The open file descriptor count
    # TYPE process_files_open_files gauge
    process_files_open_files{application="/nandao-pc-api",} 161.0
    # HELP pc_cost_summary 请求耗时summary
    # TYPE pc_cost_summary summary
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",} 18.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",quantile="0.5",} 9.0
    pc_cost_summary{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",quantile="0.9",} 9.0
    pc_cost_summary_count{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_summary_sum{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",} 18.0
    # HELP http_server_requests_seconds  
    # TYPE http_server_requests_seconds summary
    http_server_requests_seconds_count{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testThrow",} 2.0
    http_server_requests_seconds_sum{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testThrow",} 0.023595696
    http_server_requests_seconds_count{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testIsUsable",} 2.0
    http_server_requests_seconds_sum{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testIsUsable",} 0.010581015
    http_server_requests_seconds_count{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testError",} 2.0
    http_server_requests_seconds_sum{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testError",} 0.065257481
    http_server_requests_seconds_count{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testString",} 2.0
    http_server_requests_seconds_sum{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testString",} 0.077635073
    # HELP http_server_requests_seconds_max  
    # TYPE http_server_requests_seconds_max gauge
    http_server_requests_seconds_max{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testThrow",} 0.015634775
    http_server_requests_seconds_max{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testIsUsable",} 0.006410844
    http_server_requests_seconds_max{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testError",} 0.060236205
    http_server_requests_seconds_max{application="/nandao-pc-api",exception="None",method="GET",outcome="SUCCESS",status="200",uri="/promethues/testString",} 0.068526992
    # HELP tomcat_sessions_expired_sessions_total  
    # TYPE tomcat_sessions_expired_sessions_total counter
    tomcat_sessions_expired_sessions_total{application="/nandao-pc-api",} 0.0
    # 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 counter
    jvm_gc_memory_promoted_bytes_total{application="/nandao-pc-api",} 3.8617448E7
    # HELP jvm_classes_unloaded_classes_total The total number of classes unloaded since the Java virtual machine has started execution
    # TYPE jvm_classes_unloaded_classes_total counter
    jvm_classes_unloaded_classes_total{application="/nandao-pc-api",} 1.0
    # HELP tomcat_sessions_rejected_sessions_total  
    # TYPE tomcat_sessions_rejected_sessions_total counter
    tomcat_sessions_rejected_sessions_total{application="/nandao-pc-api",} 0.0
    # HELP logback_events_total Number of error level events that made it to the logs
    # TYPE logback_events_total counter
    logback_events_total{application="/nandao-pc-api",level="debug",} 0.0
    logback_events_total{application="/nandao-pc-api",level="error",} 2.0
    logback_events_total{application="/nandao-pc-api",level="warn",} 0.0
    logback_events_total{application="/nandao-pc-api",level="info",} 69.0
    logback_events_total{application="/nandao-pc-api",level="trace",} 0.0
    # HELP process_cpu_usage The "recent cpu usage" for the Java Virtual Machine process
    # TYPE process_cpu_usage gauge
    process_cpu_usage{application="/nandao-pc-api",} 0.0
    # HELP pc_aop_all_requests_count_total  
    # TYPE pc_aop_all_requests_count_total counter
    pc_aop_all_requests_count_total{aop_all_method="count",application="/nandao-pc-api",} 8.0
    # HELP tomcat_sessions_created_sessions_total  
    # TYPE tomcat_sessions_created_sessions_total counter
    tomcat_sessions_created_sessions_total{application="/nandao-pc-api",} 0.0
    # HELP jvm_gc_memory_allocated_bytes_total Incremented for an increase in the size of the young generation memory pool after one GC to before the next
    # TYPE jvm_gc_memory_allocated_bytes_total counter
    jvm_gc_memory_allocated_bytes_total{application="/nandao-pc-api",} 2.459435008E9
    # HELP system_cpu_count The number of processors available to the Java virtual machine
    # TYPE system_cpu_count gauge
    system_cpu_count{application="/nandao-pc-api",} 12.0
    # HELP app_online_count  
    # TYPE app_online_count gauge
    app_online_count{application="/nandao-pc-api",} 0.0
    # HELP jvm_gc_live_data_size_bytes Size of old generation memory pool after a full GC
    # TYPE jvm_gc_live_data_size_bytes gauge
    jvm_gc_live_data_size_bytes{application="/nandao-pc-api",} 0.0
    # HELP tomcat_global_sent_bytes_total  
    # TYPE tomcat_global_sent_bytes_total counter
    tomcat_global_sent_bytes_total{application="/nandao-pc-api",name="http-nio-8081",} 332.0
    # HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool
    # TYPE jvm_buffer_total_capacity_bytes gauge
    jvm_buffer_total_capacity_bytes{application="/nandao-pc-api",id="mapped",} 0.0
    jvm_buffer_total_capacity_bytes{application="/nandao-pc-api",id="direct",} 3424256.0
    # HELP pc_cost_histogram 请求耗时histogram
    # TYPE pc_cost_histogram histogram
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="999",msg="不是R",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testString",accessType="1",code="4",msg="测先",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="4",msg="测先",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="4",msg="测先",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="105",msg="系统错误",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testError",accessType="1",code="100",msg="参数错误",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testIsUsable",accessType="1",code="1",msg="SUCCESS",} 14.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",le="100.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",le="500.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",le="1000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",le="3000.0",} 2.0
    pc_cost_histogram_bucket{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",le="+Inf",} 2.0
    pc_cost_histogram_count{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",} 2.0
    pc_cost_histogram_sum{application="/nandao-pc-api",uri="PrometheusController.testThrow",accessType="1",code="4",msg="测先",} 14.0

部分分析：

输出指标解读：假数据伪分析

summary:请求共8次，8次总耗时82ms，中位数51ms,9分位数57ms

histogram:请求共8次，6次总耗时802ms,100ms以下5次，500ms以下5次，1000ms以下共5次，3000ms以下共8次，+Inf ms以下共8次

timer：请求共8次，8次总耗时0.402s,最大值0.893s,注意单位是s

看到数据后，你就会豁然开朗，数据很详细，多维度，多层次，立体展示。

[Link 1]: https://blog.csdn.net/nandao158/article/details/120306729
[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAbmFuZGFvMTU4_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220828/fa660bd9b9ac49cca2da1efffd257bcf.png
[http_127.0.0.1_8081_nandao-pc-api_actuator_prometheus]: http://127.0.0.1:8081/nandao-pc-api/actuator/prometheus/
[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAbmFuZGFvMTU4_size_20_color_FFFFFF_t_70_g_se_x_16 1]: /images/20220828/86586a86d4b047d2a161ae28a8211481.png