Ensure all properties map nicely to yaml

logging.file=logs/app.log
logging.file.max-history=20 
logging.file.max-size=50MB 

how to config these properties in yml file

#log 
logging:
  file:  // how to config
    max-history: 30
    max-size: 50MB

[philwebb]

I think I finally understand the issue here. A sample would have been very useful. As would have including the full stack trace.

Given the following YAML:

logging:
  file: logs/app.log
    max-history: 20
    max-size: 50MB

The following exception is raised:

java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml'
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:481)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:446)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:419)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:329)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:205)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:188)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:175)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:161)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:351)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:317)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234)
	at scratch.BindingApplication.main(BindingApplication.java:10)
Caused by: org.yaml.snakeyaml.scanner.ScannerException: mapping values are not allowed here
 in 'reader', line 3, column 16:
        max-history: 20
                   ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:872)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:360)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:226)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:557)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:157)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:147)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:227)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:154)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:249)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:240)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:228)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:154)
	at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:122)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:84)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:123)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:547)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:161)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:139)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:49)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:469)
	... 18 common frames omitted

You can work around it by doing this:

logging.file: logs/app.log 
logging:
  file: 
    max-history: 20
    max-size: 50MB

[mbhave]

I couldn’t find any other properties that can’t be mapped in YAML. spring.profiles when combined with spring.profiles.include/active seems to be the only one and I don’t think we should do anything about that till we decide how we want to handle include profiles in profile-specific YAML documents.

I’m in favor of closing this issue now that logging.file has been renamed to logging.file.name.