Micrometer in Spring Boot 3 | Interview Question and Answers | Code Decode

Micrometer Interview Questions & Answers First! Spring Boot 3 Explained for All Levels – Freshers to Experienced by Code Decode Udemy Course Discounted Link https://www.udemy.com/course/master-s... *What is Micrometer* First, let's understand with an analogy Think of your Spring Boot app like a restaurant: Metrics (Micrometer): "How many burgers were ordered?" "How long did cooking take?" "How long is the restaurant waiting queue?" Tracing (Micrometer Tracing): "What happened from the time the customer entered, placed an order, order was cooked, and served?" Micrometer helps you collect all this — automatically or manually. *Micrometer in spring Boot 3* Before (Spring Boot 2): Metrics were optional, tracing wasn’t baked in (**Micrometer** was used for *metrics only* (not tracing)) Tracing (if needed) required *manual integration* with libraries like *Brave* (for Zipkin) or *OpenTelemetry* You had to choose and configure things manually (like Prometheus or Zipkin or splunk) Now (Spring Boot 3): *Micrometer is part of the core observability system* It supports: *Metrics* (as before) *Tracing* (new via **Micrometer Tracing**) It handles tracing using either *Brave* or *OpenTelemetry* It works with Actuator endpoints like `/actuator/metrics` and `/actuator/health` Is *Micrometer Tracing* truly “out of the box” in Spring Boot 3? ❌ **No**, it is **not fully out of the box**. You *must add the right dependencies* to activate tracing. It **requires a bridge dependency to be functional**. What is **Micrometer Tracing**? Micrometer Tracing lets you *trace a request* as it moves through *different services and components**, and records **how long* each part took. It gives you: **Trace ID**: ID for the whole request **Spans**: Individual timed steps in the request **Context propagation**: Carries tracing info across services Want to switch engines? You don’t need to change the wheel (Micrometer Tracing) — just use a different bridge: `micrometer-tracing-bridge-brave` 🔌 → connects to *Brave* `micrometer-tracing-bridge-otel` 🔌 → connects to *OpenTelemetry* Mock Interview Playlist:    • Mock Interviews (Face to Face)   Most Asked Core Java Interview Questions and Answers:    • Core Java frequently asked Interview Quest...   Advance Java Interview Questions and Answers:    • Advance Java Interview Questions   Java 8 Interview Questions and Answers:    • Java 8 Interview Questions(New Features)   Hibernate Interview Questions and Answers:    • Hibernate Interview Questions Java   Spring Boot Interview Questions and Answers:    • Advance Java Interview Questions   Angular Playlist:    • Angular Course Introduction || Angular 8   SQL Playlist:    • SQL Interview Questions and Answers   GIT:    • GIT   Subscriber and Follow Code Decode Subscriber Code Decode: https://www.youtube.com/c/CodeDecode?... LinkedIn :   / codedecodeyoutube   Instagram:   / codedecode25   #micrometer #codedecode #springboot