spring-cloud/spring-cloud-gateway

cache metrics for LocalResponseCache

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#3,722 opened on Mar 14, 2025

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enhancementhelp wanted

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Description

No metrics available for LocalResponseCache filter In order to check the efficiency of the configured cache it would be great if the usual cache statistics are available.

Describe the solution you'd like the cache for the LocalResponseCache should be automatically registered in actuator.

Describe alternatives you've considered Alternative solution would be to enhance the documentation how to register the caches manually.

Contributor guide

Research direction
Examine the LocalResponseCache filter implementation in the spring cloud gateway codebase. Look at how other filters or components register metrics with Spring Boot Actuator. The goal is to automatically register cache statistics for LocalResponseCache in the actuator metrics endpoint without manual configuration. Check existing tests and configuration classes for patterns.
Tech stack
java
Domain
backendobservability
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaSpring BootActuatorCaching
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60