Repository: apache/dubbo (Java) — Feature

Issue:
Observability tasks: complement all JVM metrics and application information
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## Describe the proposal
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En:At present, the jvm application information provided by dubbo has missing data. For example, it cannot be filtered according to the application name. Data information such as jvm needs to add the application name in the label. At the same time, you can try to complete the missing data in the dashboard. The reference address of the dashboard is:[http://114.55.147.139:3000/d/5i618CpVk/dubbo-jvm-micrometer?orgId=1&refresh=15m](http://114.55.147.139:3000/d/5i618CpVk/dubbo-jvm-micrometer?orgId=1&refresh=15m)

中文：目前dubbo提供出来的jvm应用信息存在数据缺失的情况比如无法根据应用名称筛选,jvm等数据信息需要再label中增加应用名字，同时可以尝试补全dashboard中缺失的数据，dashboard参考地址为：[http://114.55.147.139:3000/d/5i618CpVk/dubbo-jvm-micrometer?orgId=1&refresh=15m](http://114.55.147.139:3000/d/5i618CpVk/dubbo-jvm-micrometer?orgId=1&refresh=15m)





The reference case data is as follows:（参考案例数据如下：）
```
# HELP jvm_gc_live_data_size_bytes Size of long-lived heap memory pool after reclamation
# TYPE jvm_gc_live_data_size_bytes gauge
jvm_gc_live_data_size_bytes 1.6086528E7
# HELP requests_succeed_aggregate Aggregated Succeed Requests
# TYPE requests_succeed_aggregate gauge
requests_succeed_aggregate{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 39.0
# 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{id="direct",} 1.679975E7
jvm_buffer_memory_used_bytes{id="mapped",} 0.0
# HELP jvm_gc_memory_allocated_bytes_total Incremented for an increase in the size of the (young) heap memory pool after one GC to before the next
# TYPE jvm_gc_memory_allocated_bytes_total counter
jvm_gc_memory_allocated_bytes_total 2.9884416E9
# HELP requests_total_aggregate Aggregated Total Requests
# TYPE requests_total_aggregate gauge
requests_total_aggregate{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 39.0
# 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 0.0
# HELP system_cpu_usage The "recent cpu usage" for the whole system
# TYPE system_cpu_usage gauge
system_cpu_usage 0.015802269043760128
# 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 40.0
# HELP requests_processing Processing Requests
# TYPE requests_processing gauge
requests_processing{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 0.0
# 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{area="nonheap",id="CodeHeap 'profiled nmethods'",} 1.22912768E8
jvm_memory_max_bytes{area="heap",id="G1 Survivor Space",} -1.0
jvm_memory_max_bytes{area="heap",id="G1 Old Gen",} 9.52107008E8
jvm_memory_max_bytes{area="nonheap",id="Metaspace",} -1.0
jvm_memory_max_bytes{area="heap",id="G1 Eden Space",} -1.0
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-nmethods'",} 5828608.0
jvm_memory_max_bytes{area="nonheap",id="Compressed Class Space",} 1.073741824E9
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'",} 1.22916864E8
# HELP jvm_threads_states_threads The current number of threads having BLOCKED state
# TYPE jvm_threads_states_threads gauge
jvm_threads_states_threads{state="blocked",} 0.0
jvm_threads_states_threads{state="runnable",} 10.0
jvm_threads_states_threads{state="waiting",} 16.0
jvm_threads_states_threads{state="timed-waiting",} 13.0
jvm_threads_states_threads{state="new",} 0.0
jvm_threads_states_threads{state="terminated",} 0.0
# 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{id="direct",} 1.6799749E7
jvm_buffer_total_capacity_bytes{id="mapped",} 0.0
# HELP rt_p99 Response Time P99
# TYPE rt_p99 gauge
rt_p99{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 1.0
# HELP jvm_memory_used_bytes The amount of used memory
# TYPE jvm_memory_used_bytes gauge
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space",} 1048576.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'",} 1.462464E7
jvm_memory_used_bytes{area="heap",id="G1 Old Gen",} 1.6098728E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace",} 4.0126952E7
jvm_memory_used_bytes{area="heap",id="G1 Eden Space",} 8.2837504E7
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'",} 1372032.0
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space",} 4519248.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'",} 5697408.0
# HELP qps Query Per Seconds
# TYPE qps gauge
qps{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 0.3333333333333333
# HELP rt_min Min Response Time
# TYPE rt_min gauge
rt_min{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 0.0
# 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{id="mapped",} 0.0
jvm_buffer_count_buffers{id="direct",} 10.0
# HELP system_cpu_count The number of processors available to the Java virtual machine
# TYPE system_cpu_count gauge
system_cpu_count 2.0
# 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 7325.0
# HELP rt_total Total Response Time
# TYPE rt_total gauge
rt_total{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 2783.0
# HELP rt_last Last Response Time
# TYPE rt_last gauge
rt_last{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 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 1.4450952E7
# 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",cause="Metadata GC Threshold",} 2.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Metadata GC Threshold",} 0.026
jvm_gc_pause_seconds_count{action="end of minor GC",cause="G1 Evacuation Pause",} 37.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="G1 Evacuation Pause",} 0.156
# 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",cause="Metadata GC Threshold",} 0.0
jvm_gc_pause_seconds_max{action="end of minor GC",cause="G1 Evacuation Pause",} 0.0
# HELP rt_p95 Response Time P95
# TYPE rt_p95 gauge
rt_p95{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 0.0
# HELP requests_total Total Requests
# TYPE requests_total gauge
requests_total{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 27738.0
# HELP process_cpu_usage The "recent cpu usage" for the Java Virtual Machine process
# TYPE process_cpu_usage gauge
process_cpu_usage 8.103727714748784E-4
# HELP rt_max Max Response Time
# TYPE rt_max gauge
rt_max{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 4.0
# HELP jvm_gc_max_data_size_bytes Max size of long-lived heap memory pool
# TYPE jvm_gc_max_data_size_bytes gauge
jvm_gc_max_data_size_bytes 9.52107008E8
# 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 39.0
# HELP jvm_threads_daemon_threads The current number of live daemon threads
# TYPE jvm_threads_daemon_threads gauge
jvm_threads_daemon_threads 36.0
# 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 0.0
# 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{area="nonheap",id="CodeHeap 'profiled nmethods'",} 1.4680064E7
jvm_memory_committed_bytes{area="heap",id="G1 Survivor Space",} 1048576.0
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen",} 5.24288E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace",} 4.1623552E7
jvm_memory_committed_bytes{area="heap",id="G1 Eden Space",} 9.0177536E7
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-nmethods'",} 2555904.0
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space",} 5111808.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'",} 5701632.0
# HELP requests_succeed Succeed Requests
# TYPE requests_succeed gauge
requests_succeed{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 27738.0
# HELP rt_avg Average Response Time
# TYPE rt_avg gauge
rt_avg{application_name="metrics-provider",group="",hostname="iZ8lgm9icspkthZ",interface="org.apache.dubbo.samples.metrics.prometheus.api.DemoService",ip="172.28.236.104",method="sayHello",version="",} 0.0
```


Discussion:

Resolving patch:
diff --git a/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/AbstractMetricsReporter.java b/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/AbstractMetricsReporter.java
--- a/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/AbstractMetricsReporter.java
+++ b/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/AbstractMetricsReporter.java
@@ -20,13 +20,16 @@
 import io.micrometer.core.instrument.Gauge;
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.Tag;
+import io.micrometer.core.instrument.Tags;
 import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics;
 import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics;
 import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics;
 import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics;
 import io.micrometer.core.instrument.binder.system.ProcessorMetrics;
+import io.micrometer.core.instrument.binder.system.UptimeMetrics;
 import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
 import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.constants.MetricsConstants;
 import org.apache.dubbo.common.lang.ShutdownHookCallbacks;
 import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
 import org.apache.dubbo.common.logger.LoggerFactory;
@@ -41,6 +44,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
@@ -105,11 +109,14 @@ protected ApplicationModel getApplicationModel() {
     private void addJvmMetrics() {
         boolean enableJvmMetrics = url.getParameter(ENABLE_JVM_METRICS_KEY, false);
         if (enableJvmMetrics) {
-            new ClassLoaderMetrics().bindTo(compositeRegistry);
-            new JvmMemoryMetrics().bindTo(compositeRegistry);
-            new JvmGcMetrics().bindTo(compositeRegistry);
-            new ProcessorMetrics().bindTo(compositeRegistry);
-            new JvmThreadMetrics().bindTo(compositeRegistry);
+            Tags extraTags = Tags.of(MetricsConstants.TAG_APPLICATION_NAME,
+                Optional.ofNullable(applicationModel.getApplicationName()).orElse(""));
+            new ClassLoaderMetrics(extraTags).bindTo(compositeRegistry);
+            new JvmMemoryMetrics(extraTags).bindTo(compositeRegistry);
+            new JvmGcMetrics(extraTags).bindTo(compositeRegistry);
+            new ProcessorMetrics(extraTags).bindTo(compositeRegistry);
+            new JvmThreadMetrics(extraTags).bindTo(compositeRegistry);
+            new UptimeMetrics(extraTags).bindTo(compositeRegistry);
         }
     }
 


Test patch:
diff --git a/dubbo-metrics/dubbo-metrics-prometheus/src/test/java/org/apache/dubbo/metrics/prometheus/PrometheusMetricsReporterTest.java b/dubbo-metrics/dubbo-metrics-prometheus/src/test/java/org/apache/dubbo/metrics/prometheus/PrometheusMetricsReporterTest.java
--- a/dubbo-metrics/dubbo-metrics-prometheus/src/test/java/org/apache/dubbo/metrics/prometheus/PrometheusMetricsReporterTest.java
+++ b/dubbo-metrics/dubbo-metrics-prometheus/src/test/java/org/apache/dubbo/metrics/prometheus/PrometheusMetricsReporterTest.java
@@ -18,6 +18,7 @@
 package org.apache.dubbo.metrics.prometheus;
 
 import org.apache.dubbo.common.utils.NetUtils;
+import org.apache.dubbo.config.ApplicationConfig;
 import org.apache.dubbo.config.MetricsConfig;
 import org.apache.dubbo.config.nested.PrometheusConfig;
 import org.apache.dubbo.rpc.model.ApplicationModel;
@@ -61,13 +62,16 @@ public void teardown() {
     @Test
     void testJvmMetrics() {
         metricsConfig.setEnableJvmMetrics(true);
+        String name = "metrics-test";
+        ApplicationModel.defaultModel().getApplicationConfigManager().setApplication(new ApplicationConfig(name));
+
         PrometheusMetricsReporter reporter = new PrometheusMetricsReporter(metricsConfig.toUrl(), applicationModel);
         reporter.init();
 
         PrometheusMeterRegistry prometheusRegistry = reporter.getPrometheusRegistry();
         Double d1 = prometheusRegistry.getPrometheusRegistry().getSampleValue("none_exist_metric");
-        Double d2 = prometheusRegistry.getPrometheusRegistry().getSampleValue("jvm_gc_memory_promoted_bytes_total");
-
+        Double d2 = prometheusRegistry.getPrometheusRegistry().getSampleValue("jvm_gc_memory_promoted_bytes_total",
+            new String[]{"application_name"},new String[]{name});
         Assertions.assertNull(d1);
         Assertions.assertNotNull(d2);
     }
@@ -84,7 +88,7 @@ void testExporter() {
         prometheusConfig.setExporter(exporter);
         metricsConfig.setPrometheus(prometheusConfig);
         metricsConfig.setEnableJvmMetrics(true);
-
+        ApplicationModel.defaultModel().getApplicationConfigManager().setApplication(new ApplicationConfig("metrics-test"));
         PrometheusMetricsReporter reporter = new PrometheusMetricsReporter(metricsConfig.toUrl(), applicationModel);
         reporter.init();