spring-projects / spring-projects/spring-boot

Support Monitoring of HttpClient with HttpComponentsClientHttpRequestFactoryBuilder

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#44,643 7 comments 2 reactions 1 assignee View on GitHub

@nosan is already working on this.

Since Sep 12, 2026.

status: pending-design-work theme: observability type: enhancement
Dominant language
Java
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Description

In Spring Boot 3.4 the HttpComponentsClientHttpRequestFactoryBuilder used by RestClient does not provide the capability to add monitoring to the HttpClient's connection pool using micrometers PoolingHttpClientConnectionManagerMetricsBinder. This leads to blindness for utilization of the underlying connection pool.

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