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Switch reactor context propagation from auto to limited

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- Polish
- Fix @since tags
- Add a test case
- Update context-propagation version

Closes gh-34201
This commit is contained in:
Moritz Halbritter
2023-10-04 09:11:40 +02:00
parent 30f29dead8
commit 5b129ceb09
6 changed files with 35 additions and 14 deletions
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9
spring-boot-project/spring-boot-docs/src/docs/asciidoc/actuator/observability.adoc
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@@ -14,7 +14,11 @@ NOTE: Low cardinality key-values will be added to metrics and traces, while high
Beans of type `ObservationPredicate`, `GlobalObservationConvention`, `ObservationFilter` and `ObservationHandler` will be automatically registered on the `ObservationRegistry`.
You can additionally register any number of `ObservationRegistryCustomizer` beans to further configure the registry.
For more details please see the https://micrometer.io/docs/observation[Micrometer Observation documentation].
Observability support relies on the https://github.com/micrometer-metrics/context-propagation[Context Propagation library] for forwarding the current observation across threads and reactive pipelines.
By default, `ThreadLocal` values are not automatically reinstated in reactive operators.
This behavior is controlled with the configprop:spring.reactor.context-propagation[] property, which can be set to `auto` to enable automatic propagation.
For more details about observations please see the https://micrometer.io/docs/observation[Micrometer Observation documentation].
TIP: Observability for JDBC can be configured using a separate project.
The https://github.com/jdbc-observations/datasource-micrometer[Datasource Micrometer project] provides a Spring Boot starter which automatically creates observations when JDBC operations are invoked.
@@ -80,7 +84,4 @@ The attributes of the `Resource` can be configured via the configprop:management
NOTE: Spring Boot does not provide auto-configuration for OpenTelemetry metrics or logging.
OpenTelemetry tracing is only auto-configured when used together with <<actuator#actuator.micrometer-tracing, Micrometer Tracing>>.
Observability support relies on the https://github.com/micrometer-metrics/context-propagation[Context Propagation library] for forwarding the current observation across threads and reactive pipelines.
`ThreadLocal` values are automatically reinstated in reactive operators, this behavior is controlled with the configprop:spring.reactor.context-propagation[] property.
The next sections will provide more details about logging, metrics and traces.