Runtime Management of the Logging Framework

Dynamically switch the logging framework used in Dubbo at runtime

Query Logging Configuration

Command: loggerInfo

Example:

> telnet 127.0.0.1 22222
> loggerInfo

Output:

Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
   ___   __  __ ___   ___   ____     
  / _ \ / / / // _ ) / _ ) / __ \  
 / // // /_/ // _  |/ _  |/ /_/ /    
/____/ \____//____//____/ \____/   
dubbo>loggerInfo
Available logger adapters: [jcl, jdk, log4j, slf4j]. Current Adapter: [log4j]. Log level: INFO

Change Log Level

Command: switchLogLevel {level}

level: ALL, TRACE, DEBUG, INFO, WARN, ERROR, OFF

Example:

> telnet 127.0.0.1 22222
> switchLogLevel WARN

Output:

Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
   ___   __  __ ___   ___   ____     
  / _ \ / / / // _ ) / _ ) / __ \  
 / // // /_/ // _  |/ _  |/ /_/ /    
/____/ \____//____//____/ \____/   
dubbo>loggerInfo
Available logger adapters: [jcl, jdk, log4j, slf4j]. Current Adapter: [log4j]. Log level: INFO
dubbo>switchLogLevel WARN
OK
dubbo>loggerInfo
Available logger adapters: [jcl, jdk, log4j, slf4j]. Current Adapter: [log4j]. Log level: WARN```

Change Logging Output Framework

Command: switchLogger {loggerAdapterName}

loggerAdapterName: slf4j, jcl, log4j, jdk, log4j2

Example:

> telnet 127.0.0.1 22222
> switchLogger slf4j

Output:

Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
   ___   __  __ ___   ___   ____     
  / _ \ / / / // _ ) / _ ) / __ \  
 / // // /_/ // _  |/ _  |/ /_/ /    
/____/ \____//____//____/ \____/   
dubbo>loggerInfo
Available logger adapters: [jcl, slf4j, log4j, jdk]. Current Adapter: [log4j]. Log level: INFO
dubbo>switchLogger slf4j
OK
dubbo>loggerInfo
Available logger adapters: [jcl, slf4j, log4j, jdk]. Current Adapter: [slf4j]. Log level: INFO
Last modified September 30, 2024: Update & Translate Overview Docs (#3040) (d37ebceaea7)