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Rohit BajajFlag for India

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log4j configuration ideal for production

HI,
My current setting for log4j is :
# Root logger option
log4j.rootLogger=DEBUG, file

# Redirect log messages to console
#log4j.appender.stdout=org.apache.log4j.ConsoleAppender
#log4j.appender.stdout.Target=System.out
#log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
#log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

# Redirect log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=/Users/robinsuri/Checkout/flock-snippets/flock-snippets.log
log4j.appender.file.MaxFileSize=5MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

Open in new window


I found that this is generating very large log file . some sample log :
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/tag-class'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for CallMethodRule[methodName=setTagClass, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG sax:101 - characters(org.apache.taglibs.standard.tag.rt.fmt.ParamTag)
2015-11-20 17:55:01 DEBUG sax:101 - endElement(http://java.sun.com/xml/ns/j2ee,tag-class,tag-class)
2015-11-20 17:55:01 DEBUG Digester:101 -   match='taglib/tag/tag-class'
2015-11-20 17:55:01 DEBUG Digester:101 -   bodyText='org.apache.taglibs.standard.tag.rt.fmt.ParamTag'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire body() for CallMethodRule[methodName=setTagClass, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 -   Popping body text '
        
        
        '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire end() for CallMethodRule[methodName=setTagClass, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 - [CallMethodRule]{taglib/tag/tag-class} Call org.apache.tomcat.util.descriptor.tld.TagXml.setTagClass(org.apache.taglibs.standard.tag.rt.fmt.ParamTag/java.lang.String)
2015-11-20 17:55:01 DEBUG IntrospectionUtils:101 - IntrospectionUtils:org.apache.tomcat.util.descriptor.tld.TagXml.setTagClass( org.apache.taglibs.standard.tag.rt.fmt.ParamTag)
2015-11-20 17:55:01 DEBUG sax:101 - characters(
        )
2015-11-20 17:55:01 DEBUG sax:101 - startElement(http://java.sun.com/xml/ns/j2ee,body-content,body-content)
2015-11-20 17:55:01 DEBUG Digester:101 -   Pushing body text '
        
        
        
        '
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/body-content'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for CallMethodRule[methodName=setBodyContent, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG sax:101 - characters(JSP)
2015-11-20 17:55:01 DEBUG sax:101 - endElement(http://java.sun.com/xml/ns/j2ee,body-content,body-content)
2015-11-20 17:55:01 DEBUG Digester:101 -   match='taglib/tag/body-content'
2015-11-20 17:55:01 DEBUG Digester:101 -   bodyText='JSP'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire body() for CallMethodRule[methodName=setBodyContent, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 -   Popping body text '
        
        
        
        '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire end() for CallMethodRule[methodName=setBodyContent, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 - [CallMethodRule]{taglib/tag/body-content} Call org.apache.tomcat.util.descriptor.tld.TagXml.setBodyContent(JSP/java.lang.String)
2015-11-20 17:55:01 DEBUG IntrospectionUtils:101 - IntrospectionUtils:org.apache.tomcat.util.descriptor.tld.TagXml.setBodyContent( JSP)
2015-11-20 17:55:01 DEBUG sax:101 - characters(
        )
2015-11-20 17:55:01 DEBUG sax:101 - startElement(http://java.sun.com/xml/ns/j2ee,attribute,attribute)
2015-11-20 17:55:01 DEBUG Digester:101 -   Pushing body text '
        
        
        
        
        '
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/attribute'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for org.apache.tomcat.util.descriptor.tld.TldRuleSet$TagAttributeRule@711f39f9
2015-11-20 17:55:01 DEBUG sax:101 - characters(
            )
2015-11-20 17:55:01 DEBUG sax:101 - startElement(http://java.sun.com/xml/ns/j2ee,description,description)
2015-11-20 17:55:01 DEBUG Digester:101 -   Pushing body text '
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/attribute/description'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for CallMethodRule[methodName=setDescription, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG sax:101 - characters(
                Argument used for parametric replacement.
            )
2015-11-20 17:55:01 DEBUG sax:101 - endElement(http://java.sun.com/xml/ns/j2ee,description,description)
2015-11-20 17:55:01 DEBUG Digester:101 -   match='taglib/tag/attribute/description'
2015-11-20 17:55:01 DEBUG Digester:101 -   bodyText='
                Argument used for parametric replacement.
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire body() for CallMethodRule[methodName=setDescription, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 -   Popping body text '
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire end() for CallMethodRule[methodName=setDescription, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 - [CallMethodRule]{taglib/tag/attribute/description} Call org.apache.tomcat.util.descriptor.tld.TldRuleSet$Attribute.setDescription(Argument used for parametric replacement./java.lang.String)
2015-11-20 17:55:01 DEBUG IntrospectionUtils:101 - IntrospectionUtils:org.apache.tomcat.util.descriptor.tld.TldRuleSet$Attribute.setDescription( Argument used for parametric replacement.)
2015-11-20 17:55:01 DEBUG sax:101 - characters(
            )
2015-11-20 17:55:01 DEBUG sax:101 - startElement(http://java.sun.com/xml/ns/j2ee,name,name)
2015-11-20 17:55:01 DEBUG Digester:101 -   Pushing body text '
            
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/attribute/name'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for CallMethodRule[methodName=setName, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG sax:101 - characters(value)
2015-11-20 17:55:01 DEBUG sax:101 - endElement(http://java.sun.com/xml/ns/j2ee,name,name)
2015-11-20 17:55:01 DEBUG Digester:101 -   match='taglib/tag/attribute/name'
2015-11-20 17:55:01 DEBUG Digester:101 -   bodyText='value'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire body() for CallMethodRule[methodName=setName, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 -   Popping body text '
            
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire end() for CallMethodRule[methodName=setName, paramCount=0, paramTypes={java.lang.String}]
2015-11-20 17:55:01 DEBUG Digester:101 - [CallMethodRule]{taglib/tag/attribute/name} Call org.apache.tomcat.util.descriptor.tld.TldRuleSet$Attribute.setName(value/java.lang.String)
2015-11-20 17:55:01 DEBUG IntrospectionUtils:101 - IntrospectionUtils:org.apache.tomcat.util.descriptor.tld.TldRuleSet$Attribute.setName( value)
2015-11-20 17:55:01 DEBUG sax:101 - characters(
            )
2015-11-20 17:55:01 DEBUG sax:101 - startElement(http://java.sun.com/xml/ns/j2ee,required,required)
2015-11-20 17:55:01 DEBUG Digester:101 -   Pushing body text '
            
            
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   New match='taglib/tag/attribute/required'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire begin() for org.apache.tomcat.util.descriptor.tld.TldRuleSet$GenericBooleanRule@71bbf57e
2015-11-20 17:55:01 DEBUG sax:101 - characters(false)
2015-11-20 17:55:01 DEBUG sax:101 - endElement(http://java.sun.com/xml/ns/j2ee,required,required)
2015-11-20 17:55:01 DEBUG Digester:101 -   match='taglib/tag/attribute/required'
2015-11-20 17:55:01 DEBUG Digester:101 -   bodyText='false'
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire body() for org.apache.tomcat.util.descriptor.tld.TldRuleSet$GenericBooleanRule@71bbf57e
2015-11-20 17:55:01 DEBUG Digester:101 -   Popping body text '
            
            
            '
2015-11-20 17:55:01 DEBUG Digester:101 -   Fire end() for org.apache.tomcat.util.descriptor.tld.TldRuleSet$GenericBooleanRule@71bbf57e
2015-11-20 17:55:01 DEBUG sax:101 - characters(

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Dont know from where all these logs are getting generated. Files seem to be quickly reach 5 MB .
what is the ideal log4j configuration will you reccomend for production environment.

Thanks
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gurpsbassi
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Rohit Bajaj
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ASKER

what should i set it to ?
SOLUTION
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srikotesh
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Rohit Bajaj
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ASKER

Hi,
It looks like TRACE produces even more logs as it is at a higher level than debug.
https://logging.apache.org/log4j/2.0/manual/architecture.html
If i use info then logs are very less.
But if want to debug something so it looks like i should put logging in code like log.info instead of debug. As debug is producing lot of other unneccesary logging
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mccarl
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