Quick Fix: Set the logging level for org.springframework.web.servlet.handler.HandlerMappingIntrospector to ERROR to suppress the warning message while waiting for the fix in the future Spring Boot release.
The Problem:
A user is experiencing a ‘Cache miss for REQUEST dispatch’ warning message when using Spring Boot version 3.2.0 after implementing the SecurityFilterChain. The user is unable to navigate to the ‘Signup’ page by clicking the signup button, instead, it redirects to the ‘Login’ page. The user seeks an explanation for the warning message and assistance in resolving the navigation issue.
The Solutions:
Solution 1: Change logging level to ERROR
The warning message "Cache miss for REQUEST dispatch" is a known issue in Spring Boot 3.2.0. It is caused by a change in the way Spring Boot handles CORS configuration.
To resolve this issue, you can change the logging level for the org.springframework.web.servlet.handler.HandlerMappingIntrospector class to ERROR. This will suppress the warning message.
To do this, add the following line to your application.properties file:
After making this change, you should no longer see the warning message.
Note: This is a temporary workaround. The issue is expected to be fixed in a future release of Spring Boot.
Solution 2: Upgrade Spring Boot version
In Spring Boot version `3.2.0`, configuring **Security (mainly related to CORS)** in the Spring Boot application leads to numerous calls (around 8 to 9 times) to the *getResultFor(HttpServletRequest request)* method of the *HandlerMappingIntrospector* class. Leading to a **Cache miss for REQUEST dispatch** issue and impacting performance, as indicated in this [Link][1].
The suggested solution is to consider upgrading your Spring Boot version to `3.2.1` or higher to resolve this issue. After the upgrade, Spring no longer calls the mentioned method, as confirmed through testing, though this cannot be confirmed at a high level.
Q&A
What could be causing the "Cache miss for REQUEST dispatch" message with Spring Boot version 3.2.0?
—
It is a known issue with Spring Boot 3.2.0 related to CORS.
What is a possible solution to resolve the "Cache miss for REQUEST dispatch" issue?
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Upgrade to Spring Boot version 3.2.1 or configure logging level to ERROR.
Why does the "Cache miss for REQUEST dispatch" issue occur when configuring Spring Boot Security?
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In Spring Boot 3.2.0, CORS configuration may trigger multiple calls to a method in HandlerMappingIntrospector, leading to the issue.
Video Explanation:
The following video, titled "Furthest-in-Future Cache Eviction (greedy algorithm) - YouTube", provides additional insights and in-depth exploration related to the topics discussed in this post.
Basics of caching, eviction policy and design of a greedy algorithm based on furthest-in-future eviction policy.
