最全面！一文让你看懂无侵入的微服务探针原理

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":1},"content":[{"type":"text","text":"前言"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"随着微服务架构的兴起，应用行为的复杂性显著提高，为了提高服务的可观察性，分布式监控系统变得十分重要。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"基于 Google 的 Dapper 论文，发展出了很多有名的监控系统：Zipkin、Jaeger、Skywalking 以及想一统江湖的 OpenTelemetry 等。一众厂家和开源爱好者围绕着监控数据的采集、收集、存储以及展示做出了不少出色的设计。 "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"时至今日即使是个人开发者也能依赖开源产品，轻松的搭建一套完备的监控系统。但作为监控服务的提供者，必须要做好与业务的解绑，来降低用户接入、版本更新、问题修复、业务止损的成本。所以一个可插拔、无侵入的采集器成为一众厂家必备的杀手鐗。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 为了获取服务之间调用链信息，采集器通常需要在方法的前后做埋点。在 Java 生态中，常见的埋点方式有两种：依赖 SDK 手动埋点；利用 Javaagent 技术来做无侵入埋点。下面围绕着 无侵入埋点的技术与原理为大家做一个全面的介绍。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":1},"content":[{"type":"text","text":"无侵入的采集器（探针）"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"分布式监控系统中，模块可以分为：采集器（Instrument）、发送器（TransPort）、收集器（Collector）、存储（Srotage）、展示（API&UI）。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/ef\/68\/ef8d25535a4ee98e5c3e206433a1e468.png","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}