Merge branch '2.1.x'

Closes gh-17554

spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc

@@ -2022,9 +2022,9 @@ is required. A `CacheMetricsRegistrar` bean is made available to make that proce
 [[production-ready-metrics-jdbc]]
 ==== DataSource Metrics
 Auto-configuration enables the instrumentation of all available `DataSource` objects with
-a metric named `jdbc`. Data source instrumentation results in gauges representing the
-currently active, idle, maximum allowed, and minimum allowed connections in the pool. Each
-of these gauges has a name that is prefixed by `jdbc`.
+metrics prefixed with `jdbc.connections`. Data source instrumentation results in gauges
+representing the currently active, idle, maximum allowed, and minimum allowed connections
+in the pool.
 
 Metrics are also tagged by the name of the `DataSource` computed based on the bean name.