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SkyWalking Agent Ignore 设置

背景

SkyWalking agent 会采集所有支持的数据，但平台或技术框架本身存在的 health check、heartbeat、定期轮询 等机制会产生大量无意义数据，这个采样点需要进行忽略。

以Spring Cloud 举几个例子：

  • 服务向注册中心发送“心跳”、定期获取注册的服务列表等，/eureka/** 均可忽略
  • 应用健康检查机制，如 /health 接口
  • 数据库维持连接机制，如MySQL 定期执行 select 1
  • Spring Cloud 本身大量的MQ通讯
  • 向配置中心定期拉取配置

使用方式

忽略指定后缀

Java Agent 提供了标准的 agent.ignore_suffix 配置，可忽略特定后缀的采样。

例如以环境变量配置的方式忽略 health 结尾的Endpoint，多项配置间以逗号隔开

  1. SW_AGENT_IGNORE_SUFFIX: health

匹配 Ant Path 规则

可选插件 apm-trace-ignore-plugin 提供了更灵活的配置，支持 Ant Path 规则，如：/path/*、/path/**、/path/?。

使用方式

将 apm-trace-ignore-plugin-x.jar 包从 /agent/optional-plugins/apm-trace-ignore-plugin 移动到 /agent/plugins 即可。

​

以忽略 eureka 为例，配置JVM参数，多项配置以逗号分隔：

  1. -Dskywalking.trace.ignore_path=/eureka/**

43 thoughts on “SkyWalking Agent Ignore 设置”

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