MetricExportAutoConfiguration contains EnableScheduling annotation

[mzakes]

Hi,

the MetricExportAutoConfiguration.class in actuate project contains an @EnableScheduling annotation. This causes that ScheduledAnnotationBeanPostProcessor is always fired by default if actuator is on the classpath and all the methods annotated @Scheduled are loaded.

This can cause a lot of pain. Could you please update the documentation or rewrite that class?

[snicoll]

This duplicates #7307 (there is a property you can set if you don't want that to happen) but let's turn this one into a documentation change.

[wilkinsona]

I've opened #8041 so that we can consider reworking MetricExportAutoConfiguration in the future.

[mzakes]

@snicoll. Of course that you can set this property to false. But if it's active the whole application inherits scheduling. For people that don't dig into the project it can be a surprise that during tests their @Scheduled method is executed but they removed @EnableScheduling annotation in the test configuration class.

[nimmortal]

Unfortunately this is real issue, because it takes some time to understand why scheduled tasks are performed in tests.

[snicoll]

@nimmortal this issue is quite old and Spring Boot 2.x does not have @EnableScheduling anymore. If you have more questions, please ask them on StackOverflow.