Java JVM 监控指标采集

简介

通过 jvm 采集 java 指标上报到 DataFlux 中

前置条件

• 已安装 DataKit（DataKit 安装文档）
• 已配置 Jolokia 指标采集

配置

进入 DataKit 安装目录下的 conf.d/jvm 目录，复制 jvm.conf.sample 并命名为 jvm.conf。示例如下：

设置：

[[inputs.jolokia2_agent]]
  urls = ["http://localhost:8080/jolokia"]

  [[inputs.jolokia2_agent.metric]]
    name  = "java_runtime"
    mbean = "java.lang:type=Runtime"
    paths = ["Uptime"]

  [[inputs.jolokia2_agent.metric]]
    name  = "java_memory"
    mbean = "java.lang:type=Memory"
    paths = ["HeapMemoryUsage", "NonHeapMemoryUsage", "ObjectPendingFinalizationCount"]

  [[inputs.jolokia2_agent.metric]]
    name     = "java_garbage_collector"
    mbean    = "java.lang:name=*,type=GarbageCollector"
    paths    = ["CollectionTime", "CollectionCount"]
    tag_keys = ["name"]

  [[inputs.jolokia2_agent.metric]]
    name  = "java_last_garbage_collection"
    mbean = "java.lang:name=G1 Young Generation,type=GarbageCollector"
    paths = ["LastGcInfo/duration", "LastGcInfo/GcThreadCount", "LastGcInfo/memoryUsageAfterGc"]

  [[inputs.jolokia2_agent.metric]]
    name  = "java_threading"
    mbean = "java.lang:type=Threading"
    paths = ["TotalStartedThreadCount", "ThreadCount", "DaemonThreadCount", "PeakThreadCount"]

  [[inputs.jolokia2_agent.metric]]
    name  = "java_class_loading"
    mbean = "java.lang:type=ClassLoading"
    paths = ["LoadedClassCount", "UnloadedClassCount", "TotalLoadedClassCount"]

  [[inputs.jolokia2_agent.metric]]
    name     = "java_memory_pool"
    mbean    = "java.lang:name=*,type=MemoryPool"
    paths    = ["Usage", "PeakUsage", "CollectionUsage"]
    tag_keys = ["name"]

配置好后，重启 DataKit 即可生效