扩展 Metric 监控信息

官方文档

Source and Scope extension for new metrics

案例：JVM Thread 增加 Metrics

修改 Thread 的定义

在 apm-protocol/apm-network/src/main/proto/language-agent/JVMMetric.proto 协议文件中覆盖 message Thread 的定义

message Thread {int64 liveCount = 1;int64 daemonCount = 2;int64 peakCount = 3;int64 deadlocked = 4;int64 monitorDeadlocked = 5;int64 newThreadCount = 7;int64 runnableThreadCount = 8;int64 blockedThreadCount = 9;int64 waitThreadCount = 10;int64 timeWaitThreadCount = 11;int64 terminatedThreadCount = 12;
}

重新构建 apm-network 项目

cd apm-protocol/apm-network
mvn clean package -DskipTests=true

PS：可以安装 Protocol Buffer Editor 插件，支持 Protocol Buffer 语法

修改 agent core 中 Thread Metrics 的提供类

直接使用如下代码覆盖 org.apache.skywalking.apm.agent.core.jvm.thread.ThreadProvider 类

/** Licensed to the Apache Software Foundation (ASF) under one or more* contributor license agreements.  See the NOTICE file distributed with* this work for additional information regarding copyright ownership.* The ASF licenses this file to You under the Apache License, Version 2.0* (the "License"); you may not use this file except in compliance with* the License.  You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.**/package org.apache.skywalking.apm.agent.core.jvm.thread;import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.util.Optional;import org.apache.skywalking.apm.network.language.agent.v3.Thread;public enum ThreadProvider {INSTANCE;private final ThreadMXBean threadMXBean;private static final long [] EMPTY_DEADLOCKED_THREADS = new long[0];ThreadProvider() {this.threadMXBean = ManagementFactory.getThreadMXBean();}public Thread getThreadMetrics() {int newThreadCount = 0;int runnableThreadCount = 0;int blockedThreadCount = 0;int waitThreadCount = 0;int timeWaitThreadCount = 0;int terminatedThreadCount = 0;// 基于线程状态信息增加对应状态的线程数ThreadInfo[] threadInfos = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds());if (threadInfos != null) {for (ThreadInfo threadInfo : threadInfos) {if (threadInfo != null) {switch (threadInfo.getThreadState()) {case NEW:newThreadCount++;break;case RUNNABLE:runnableThreadCount++;break;case BLOCKED:blockedThreadCount++;break;case WAITING:waitThreadCount++;break;case TIMED_WAITING:timeWaitThreadCount++;break;case TERMINATED:terminatedThreadCount++;break;default:break;}} else {/** If a thread of a given ID is not alive or does not exist,* the corresponding element in the returned array will,* contain null,because is mut exist ,so the thread is terminated*/terminatedThreadCount++;}}}// 当前存活线程数int threadCount = threadMXBean.getThreadCount();// deamon线程数int daemonThreadCount = threadMXBean.getDaemonThreadCount();// 峰值线程数int peakThreadCount = threadMXBean.getPeakThreadCount();int deadlocked = Optional.ofNullable(threadMXBean.findDeadlockedThreads()).orElse(EMPTY_DEADLOCKED_THREADS).length;int monitorDeadlocked = Optional.ofNullable(threadMXBean.findMonitorDeadlockedThreads()).orElse(EMPTY_DEADLOCKED_THREADS).length;// 构建一个Thread对象，用于发送Thread Metric信息至OAPreturn Thread.newBuilder().setLiveCount(threadCount).setDaemonCount(daemonThreadCount).setPeakCount(peakThreadCount).setDeadlocked(deadlocked).setMonitorDeadlocked(monitorDeadlocked).setNewThreadCount(newThreadCount).setRunnableThreadCount(runnableThreadCount).setBlockedThreadCount(blockedThreadCount).setWaitThreadCount(waitThreadCount).setTimeWaitThreadCount(timeWaitThreadCount).setTerminatedThreadCount(terminatedThreadCount).build();}}

修改 ServiceInstanceJVMThread

直接使用如下代码覆盖 org.apache.skywalking.oap.server.core.source.ServiceInstanceJVMThread 类， ServiceInstanceJVMThread继承了 Source 抽象类， Source 类是 Skywalking 中 oal 体系，资源及范围的定义。

/** Licensed to the Apache Software Foundation (ASF) under one or more* contributor license agreements.  See the NOTICE file distributed with* this work for additional information regarding copyright ownership.* The ASF licenses this file to You under the Apache License, Version 2.0* (the "License"); you may not use this file except in compliance with* the License.  You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.**/package org.apache.skywalking.oap.server.core.source;import lombok.Getter;
import lombok.Setter;import static org.apache.skywalking.oap.server.core.source.DefaultScopeDefine.SERVICE_INSTANCE_CATALOG_NAME;
import static org.apache.skywalking.oap.server.core.source.DefaultScopeDefine.SERVICE_INSTANCE_JVM_THREAD;@ScopeDeclaration(id = SERVICE_INSTANCE_JVM_THREAD, name = "ServiceInstanceJVMThread", catalog = SERVICE_INSTANCE_CATALOG_NAME)
@ScopeDefaultColumn.VirtualColumnDefinition(fieldName = "entityId", columnName = "entity_id", isID = true, type = String.class)
public class ServiceInstanceJVMThread extends Source {@Overridepublic int scope() {return SERVICE_INSTANCE_JVM_THREAD;}@Overridepublic String getEntityId() {return String.valueOf(id);}@Getter@Setterprivate String id;@Getter@Setter@ScopeDefaultColumn.DefinedByField(columnName = "name", requireDynamicActive = true)private String name;@Getter@Setter@ScopeDefaultColumn.DefinedByField(columnName = "service_name", requireDynamicActive = true)private String serviceName;@Getter@Setter@ScopeDefaultColumn.DefinedByField(columnName = "service_id")private String serviceId;@Getter@Setterprivate long liveCount;@Getter@Setterprivate long daemonCount;@Getter@Setterprivate long peakCount;@Getter@Setterprivate long deadlocked;@Getter@Setterprivate long monitorDeadlocked;@Getter@Setterprivate long newThreadCount;@Getter@Setterprivate long runnableThreadCount;@Getter@Setterprivate long blockedThreadCount;@Getter@Setterprivate long waitThreadCount;@Getter@Setterprivate long timeWaitThreadCount;@Getter@Setterprivate long terminatedThreadCount;
}

修改 JVMSourceDispatcher

org.apache.skywalking.oap.server.analyzer.provider.jvm.JVMSourceDispatcher 是一个 Source 分发类，将从 agent 接收到的 JVM 相关 Metrics 拆分成对应的 Source 。例如： ServiceInstanceJVMMemory 、 ServiceInstanceJVMThread 。 修改方法org.apache.skywalking.oap.server.analyzer.provider.jvm.JVMSourceDispatcher#sendToThreadMetricProcess 为如下代码：

    private void sendToThreadMetricProcess(String service,String serviceId,String serviceInstance,String serviceInstanceId,long timeBucket,Thread thread) {ServiceInstanceJVMThread serviceInstanceJVMThread = new ServiceInstanceJVMThread();serviceInstanceJVMThread.setId(serviceInstanceId);serviceInstanceJVMThread.setName(serviceInstance);serviceInstanceJVMThread.setServiceId(serviceId);serviceInstanceJVMThread.setServiceName(service);serviceInstanceJVMThread.setLiveCount(thread.getLiveCount());serviceInstanceJVMThread.setDaemonCount(thread.getDaemonCount());serviceInstanceJVMThread.setPeakCount(thread.getPeakCount());serviceInstanceJVMThread.setTimeBucket(timeBucket);serviceInstanceJVMThread.setDeadlocked(thread.getDeadlocked());serviceInstanceJVMThread.setMonitorDeadlocked(thread.getMonitorDeadlocked());serviceInstanceJVMThread.setNewThreadCount(thread.getNewThreadCount());serviceInstanceJVMThread.setRunnableThreadCount(thread.getRunnableThreadCount());serviceInstanceJVMThread.setBlockedThreadCount(thread.getBlockedThreadCount());serviceInstanceJVMThread.setWaitThreadCount(thread.getWaitThreadCount());serviceInstanceJVMThread.setTimeWaitThreadCount(thread.getTimeWaitThreadCount());serviceInstanceJVMThread.setTerminatedThreadCount(thread.getTerminatedThreadCount());sourceReceiver.receive(serviceInstanceJVMThread);}

在 java-agent.oal 增加相关指标

在oap-server/server-bootstrap/src/main/resources/oal/java-agent.oal 添加如下语句

// 参考oal语法
instance_jvm_thread_deadlocked = from(ServiceInstanceJVMThread.deadlocked).longAvg();
instance_jvm_thread_monitor_deadlocked = from(ServiceInstanceJVMThread.monitorDeadlocked).longAvg();
instance_jvm_thread_new_thread_count = from(ServiceInstanceJVMThread.newThreadCount).longAvg();
instance_jvm_thread_runnable_thread_count = from(ServiceInstanceJVMThread.runnableThreadCount).longAvg();
instance_jvm_thread_blocked_thread_count = from(ServiceInstanceJVMThread.blockedThreadCount).longAvg();
instance_jvm_thread_wait_thread_count = from(ServiceInstanceJVMThread.waitThreadCount).longAvg();
instance_jvm_thread_time_wait_thread_count = from(ServiceInstanceJVMThread.timeWaitThreadCount).longAvg();
instance_jvm_thread_terminated_thread_count = from(ServiceInstanceJVMThread.terminatedThreadCount).longAvg();

修改 apm.yml

在 oap-server/server-bootstrap/src/main/resources/ui-initialized-templates/apm.yml 文件的 APM 面板下的 Instance 项增加如下配置

{"width": 3,"title": "JVM Thread Count (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","queryMetricType": "readMetricsValues","chartType": "ChartLine","metricName": "instance_jvm_thread_live_count, instance_jvm_thread_daemon_count, instance_jvm_thread_peak_count,instance_jvm_thread_deadlocked,instance_jvm_thread_monitor_deadlocked"
},
{"width": 3,"title": "JVM Thread State Count (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_jvm_thread_new_thread_count,instance_jvm_thread_runnable_thread_count,instance_jvm_thread_blocked_thread_count,instance_jvm_thread_wait_thread_count,instance_jvm_thread_time_wait_thread_count,instance_jvm_thread_terminated_thread_count","queryMetricType": "readMetricsValues","chartType": "ChartBar"
}

如果不清楚添加位置，可以直接使用如下配置，覆盖 oap-server/server-bootstrap/src/main/resources/ui-initialized-templates/apm.yml

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.# UI templates initialized file includes the default template when the SkyWalking OAP starts up at the first time.
#
# Also, SkyWalking would detect the existing templates in the database, once they are missing, all templates in this file
# could be added automatically.templates:- name: "APM"# The type includes DASHBOARD, TOPOLOGY_INSTANCE, TOPOLOGY_ENDPOINT.# DASHBOARD type templates could have multiple definitions, by using different names.# TOPOLOGY_INSTANCE, TOPOLOGY_ENDPOINT type templates should be defined once, as they are used in the topology page only.type: "DASHBOARD"# Configuration could be defined through UI, and use `export` to format in the standard JSON.configuration: |-[{"name": "APM","type": "service","children": [{"name": "Global","children": [{"width": 3,"title": "Services Load","height": "300","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_cpm","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": false,"unit": "CPM - calls per minute"},{"width": 3,"title": "Slow Services","height": "300","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_resp_time","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": false,"unit": "ms"},{"width": 3,"title": "Un-Health Services (Apdex)","height": "300","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_apdex","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": false,"aggregation": "/","aggregationNum": "10000","sortOrder": "ASC"},{"width": 3,"title": "Slow Endpoints","height": "300","entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_avg","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": false,"unit": "ms"},{"width": "6","title": "Global Response Latency","height": "280","entityType": "All","independentSelector": false,"metricType": "LABELED_VALUE","metricName": "all_percentile","queryMetricType": "readLabeledMetricsValues","chartType": "ChartLine","metricLabels": "P50, P75, P90, P95, P99","labelsIndex": "0, 1, 2, 3, 4","unit": "percentile in ms"},{"width": "6","title": "Global Heatmap","height": "280","entityType": "All","independentSelector": false,"metricType": "HEATMAP","unit": "ms","queryMetricType": "readHeatMap","chartType": "ChartHeatmap","metricName": "all_heatmap"}]},{"name": "Service","children": [{"width": 3,"title": "Service Apdex","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_apdex","queryMetricType": "readMetricsValue","chartType": "ChartNum","aggregation": "/","aggregationNum": "10000"},{"width": 3,"title": "Service Avg Response Time","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_resp_time","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "ms"},{"width": 3,"title": "Successful Rate","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_sla","queryMetricType": "readMetricsValue","chartType": "ChartNum","unit": "%","aggregation": "/","aggregationNum": "100"},{"width": 3,"title": "Service Load","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_cpm","queryMetricType": "readMetricsValue","chartType": "ChartNum","unit": "CPM - calls per minute"},{"width": 3,"title": "Service Apdex","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_apdex","queryMetricType": "readMetricsValues","chartType": "ChartLine","aggregation": "/","aggregationNum": "10000"},{"width": 3,"title": "Service Response Time Percentile","height": "200","entityType": "Service","independentSelector": false,"metricType": "LABELED_VALUE","metricName": "service_percentile","queryMetricType": "readLabeledMetricsValues","chartType": "ChartLine","unit": "ms","metricLabels": "P50, P75, P90, P95, P99","labelsIndex": "0, 1, 2, 3, 4"},{"width": 3,"title": "Successful Rate","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_sla","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "%","aggregation": "/","aggregationNum": "100"},{"width": 3,"title": "Service Load","height": "200","entityType": "Service","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_cpm","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "CPM - calls per minute"},{"width": "4","title": "Service Instances Load","height": "280","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_cpm","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": true,"unit": "CPM - calls per minute"},{"width": "4","title": "Slow Service Instance","height": "280","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_resp_time","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": true,"unit": "ms"},{"width": "4","title": "Service Instance Successful Rate","height": "280","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_sla","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": true,"unit": "%","aggregation": "/","aggregationNum": "100","sortOrder": "ASC"}]},{"name": "Instance","children": [{"width": "3","title": "Service Instance Load","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_cpm","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "CPM - calls per minute"},{"width": 3,"title": "Service Instance Throughput","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_throughput_received,service_instance_throughput_sent","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "Bytes"},{"width": "3","title": "Service Instance Successful Rate","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_sla","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "%","aggregation": "/","aggregationNum": "100"},{"width": "3","title": "Service Instance Latency","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "service_instance_resp_time","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "ms"},{"width": 3,"title": "JVM CPU (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_jvm_cpu","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "%","aggregation": "+","aggregationNum": ""},{"width": 3,"title": "JVM Memory (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_jvm_memory_heap, instance_jvm_memory_heap_max,instance_jvm_memory_noheap, instance_jvm_memory_noheap_max","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "MB","aggregation": "/","aggregationNum": "1048576"},{"width": 3,"title": "JVM GC Time","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_jvm_young_gc_time, instance_jvm_old_gc_time","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "ms"},{"width": 3,"title": "JVM GC Count","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","queryMetricType": "readMetricsValues","chartType": "ChartBar","metricName": "instance_jvm_young_gc_count, instance_jvm_old_gc_count"},{"width": 3,"title": "JVM Thread Count (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","queryMetricType": "readMetricsValues","chartType": "ChartLine","metricName": "instance_jvm_thread_live_count, instance_jvm_thread_daemon_count, instance_jvm_thread_peak_count,instance_jvm_thread_deadlocked,instance_jvm_thread_monitor_deadlocked"},{"width": 3,"title": "JVM Thread State Count (Java Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_jvm_thread_new_thread_count,instance_jvm_thread_runnable_thread_count,instance_jvm_thread_blocked_thread_count,instance_jvm_thread_wait_thread_count,instance_jvm_thread_time_wait_thread_count,instance_jvm_thread_terminated_thread_count","queryMetricType": "readMetricsValues","chartType": "ChartBar"},{"width": 3,"title": "CLR CPU  (.NET Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_clr_cpu","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "%"},{"width": 3,"title": "CLR GC (.NET Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_clr_gen0_collect_count, instance_clr_gen1_collect_count, instance_clr_gen2_collect_count","queryMetricType": "readMetricsValues","chartType": "ChartBar"},{"width": 3,"title": "CLR Heap Memory (.NET Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "instance_clr_heap_memory","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "MB","aggregation": "/","aggregationNum": "1048576"},{"width": 3,"title": "CLR Thread (.NET Service)","height": "250","entityType": "ServiceInstance","independentSelector": false,"metricType": "REGULAR_VALUE","queryMetricType": "readMetricsValues","chartType": "ChartLine","metricName": "instance_clr_available_completion_port_threads,instance_clr_available_worker_threads,instance_clr_max_completion_port_threads,instance_clr_max_worker_threads"}]},{"name": "Endpoint","children": [{"width": "4","title": "Endpoint Load in Current Service","height": "280","entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_cpm","queryMetricType": "sortMetrics","chartType": "ChartSlow","parentService": true,"unit": "CPM - calls per minute"},{"width": "4","title": "Slow Endpoints in Current Service","height": "280","entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","queryMetricType": "sortMetrics","chartType": "ChartSlow","metricName": "endpoint_avg","unit": "ms","parentService": true},{"width": "4","title": "Successful Rate in Current Service","height": "280","entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_sla","queryMetricType": "sortMetrics","chartType": "ChartSlow","aggregation": "/","aggregationNum": "100","parentService": true,"unit": "%","sortOrder": "ASC"},{"width": 3,"title": "Endpoint Load","height": 350,"entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_cpm","queryMetricType": "readMetricsValues","chartType": "ChartLine"},{"width": 3,"title": "Endpoint Avg Response Time","height": 350,"entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_avg","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "ms"},{"width": 3,"title": "Endpoint Response Time Percentile","height": 350,"entityType": "Endpoint","independentSelector": false,"metricType": "LABELED_VALUE","metricName": "endpoint_percentile","queryMetricType": "readLabeledMetricsValues","chartType": "ChartLine","metricLabels": "P50, P75, P90, P95, P99","labelsIndex": "0, 1, 2, 3, 4","unit": "ms"},{"width": 3,"title": "Endpoint Successful Rate","height": 350,"entityType": "Endpoint","independentSelector": false,"metricType": "REGULAR_VALUE","metricName": "endpoint_sla","queryMetricType": "readMetricsValues","chartType": "ChartLine","unit": "%","aggregation": "/","aggregationNum": "100"}]}]}]# Activated as the DASHBOARD type, makes this templates added into the UI page automatically.# False means providing a basic template, user needs to add it manually.activated: true# True means wouldn't show up on the dashboard. Only keeps the definition in the storage.disabled: false

效果展示

代码贡献

  • Add some new thread metric and class metric to JVMMetric #7230
  • add some new thread metric and class metric to JVMMetric #52
  • Remove Terminated State and New State in JVMMetric (#7230) #53
  • Add some new thread metric and class metric to JVMMetric (#7230) #7243

总结

Metric 如何扩展，网上基本上没案例，都是看官方文档和源码了解。对应这种非常热门的开源项目，还是看官方文档和源码更稳。

参考文档

  • Java ManagementFactory解析
  • 编程中使用ThreadMXBean类来检测死锁
  • Source and Scope extension for new metrics
  • Observability Analysis Language

分享并记录所学所见

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