May 12, 2021 · Backend Development

How to Set Up Distributed Tracing with Spring Cloud, Nacos, and Zipkin

This guide walks through configuring Spring Cloud microservices with Nacos service discovery, adding Zipkin for distributed tracing, and persisting trace data to Elasticsearch, including all necessary Maven dependencies, YAML settings, controller code, and verification steps.

ElasticsearchMicroservicesdistributed-tracing

0 likes · 7 min read

How to Set Up Distributed Tracing with Spring Cloud, Nacos, and Zipkin

Java Captain

Jul 7, 2019 · Backend Development

Root Cause Analysis of HTTP 400 Errors After Spring Boot and Tomcat Upgrade Due to Nginx Host Header Handling

The article investigates why upgrading Spring Boot (and Tomcat) caused massive HTTP 400 errors in production, traces the issue to Nginx forwarding a Host header with an underscore, explains Tomcat's stricter RFC‑compliant validation introduced in version 8.5.31, and provides reproducible steps and remediation guidance.

BackendHTTP 400distributed-tracing

0 likes · 7 min read

Root Cause Analysis of HTTP 400 Errors After Spring Boot and Tomcat Upgrade Due to Nginx Host Header Handling