Why Is Spring Boot Admin’s HTTP Trace Missing? How to Restore It
This article explains why the HTTP trace feature disappears in Spring Boot Admin after version 2.2.x, details the investigation steps that reveal the default disabling of the InMemoryHttpTraceRepository, and recommends using third‑party tracing solutions such as Prometheus with Grafana for observable metrics.
Introduction
Recently a user reported that the Spring boot admin httptrace feature was missing. The author confirmed that the HTTP trace view, which shows recent service requests and a flame graph, is indeed gone.
Investigation
Checking the Spring boot admin source shows the httptrace feature still exists. A search in the Spring boot GitHub issues revealed that, by default, management.trace.http is disabled.
In Spring Boot 2.0.0 M4 the default InMemoryHttpTraceRepository bean was removed.
Note: When encountering version‑related changes, also search the Spring-boot and Spring cloud GitHub issues.
Conclusion
Starting with the official Spring Boot 2.2.x releases, InMemoryHttpTraceRepository is no longer enabled by default, which causes the missing httptrace.
The recommended solution is to use a third‑party component for collecting HTTP traces, as suggested by the Spring team. For example, the author uses Prometheus to collect traces and displays them in Grafana.
References
https://github.com/spring-projects/spring-boot/issues/15039 – Default disables management.trace.http
https://github.com/spring-projects/spring-boot/issues/17047 – Encouraged to use third‑party tracing and observability solutions
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