JHipster - Log Files

Question

I have a JHipster application running and I would like to know where are the logs files. Where are they generated ? (It\'s a newbie question, but can\'t find anything)

I

Answer 1

The default jh configuration src\main\resourcess\logback-spring.xml:

    




    

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    

    
        true
    

    
        
    

 

includes spring-boot-master\spring-boot\src\main\resources\org\springframework\boot\logging\logback\base.xml

which includes defaults.xml:

	
	
	

	
	

	
		org.springframework.boot
	

	
	
	
	
	
	
	
	
	
	
	
		
	
	
		
	

console-appender.xml

	
		
			${CONSOLE_LOG_PATTERN}
			utf8
		
	

and finally file-appender.xml

	
		
			${FILE_LOG_PATTERN}
		
		${LOG_FILE}
		
			${LOG_FILE}.%i
		
		
			10MB
		
	

which is creating a spring.log file in the temp directory that rolls every 10MB.

Here is a version that may be more appropriate for production.

It enables the async file appender, and replaces the temp directory spring.log with debug, info (without trace or debug), and error (without info,trace,debug) log files in the catalina_base directory that roll each day.

It uses an easily-parsed splunk format, and column widths that are easy for humans to scan.

It includes columns that a simple Servlet Filter can use to add values to MDC for: IP=IP Address, S=Session Id, TX=Transaction Id, U=User Id. eg org.slf4j.MDC.put("TX", java.util.UUID.randomUUID().toString()); :

	
	
	

  
  
	
	
	
	
  
  
	  
  
  
	
  
	
		org.springframework.boot
	

	
	
	
	
	
	
	
	
	
	
	
		
	
	
		
	




	
		
			${CONSOLE_LOG_PATTERN}
			utf8
		
	


    ${LOG_PATH}/debug.log    
        
          DEBUG
          ACCEPT
        
        
          INFO
          ACCEPT
        
        
          TRACE
          ACCEPT
        
        
          WARN
          ACCEPT
        
        
          ERROR
          ACCEPT
            
        utf-8${LOG_PATTERN}
        ${LOG_ARCHIVE_PREFIX}debug.log${LOG_ARCHIVE_DAYS}
    

    ${LOG_PATH}/info.log
        
          DEBUG
          DENY
        
        
          INFO
          ACCEPT
        
        
          TRACE
          DENY
        
        
          WARN
          ACCEPT
        
        
          ERROR
          ACCEPT
        
        utf-8${LOG_PATTERN}
        ${LOG_ARCHIVE_PREFIX}info.log${LOG_ARCHIVE_DAYS}
    

    ${LOG_PATH}/error.log
        
          DEBUG
          DENY
        
        
          INFO
          DENY
        
        
          TRACE
          DENY
        
        
          WARN
          ACCEPT
        
        
          ERROR
          ACCEPT
        
        utf-8${LOG_PATTERN}${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}
        ${LOG_ARCHIVE_PREFIX}error.log${LOG_ARCHIVE_DAYS}
    

    
        512
        
		    
        
    

	
		
		
		
		
	


    
    

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    

    
        true