I am new to log4j and worked to setup on eclipse and its running. I understood the chain of priority in the levels and this is my properties file config:
log4j.rootLogger=ALL, file, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
logrj.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%-5p %c{1} - %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=logs/justfortesting.log
log4j.appender.file.Append=true
log4j.appender.file.ImmediateFlush=true
log4j.appender.file.MaxFileSize=1KB
log4j.appender.file.MaxBackupIndex=2
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d %d{Z} [%t] %-5p (%F:%L) - %m%n
My question is
Is it possible to print only INFO and ERROR type of messages in log files with properties file configuration
Finally I got the solution for my requirement. Here I used concept of filters i.e LevelRangeFilter. And for every logging level we defined appender.
log4j.rootLogger=DEBUG, file, console, file1
log4j.appender.console=org.apache.log4j.ConsoleAppender
logrj.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%-5p %c{1} - %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=logs/justfortesting.log
log4j.appender.file.Append=true
log4j.appender.file.ImmediateFlush=true
log4j.appender.file.Threshold=DEBUG
log4j.appender.file.filter.a=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.file.filter.a.LevelMin=INFO
log4j.appender.file.filter.a.LevelMax=INFO
log4j.appender.file.MaxFileSize=1KB
log4j.appender.file.MaxBackupIndex=2
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d %d{Z} [%t] %-5p (%F:%L) - %m%n
log4j.appender.file1=org.apache.log4j.RollingFileAppender
log4j.appender.file1.File=logs/justfortesting.log
log4j.appender.file1.Append=true
log4j.appender.file1.ImmediateFlush=true
log4j.appender.file1.Threshold=DEBUG
log4j.appender.file1.filter.g=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.file1.filter.g.LevelMin=ERROR
log4j.appender.file1.filter.g.LevelMax=ERROR
log4j.appender.file1.MaxFileSize=1KB
log4j.appender.file1.MaxBackupIndex=2
log4j.appender.file1.layout=org.apache.log4j.PatternLayout
log4j.appender.file1.layout.ConversionPattern=%d %d{Z} [%t] %-5p (%F:%L) - %m%n
log4j.logger.com.log4j=DEBUG, file, console, file1
log4j.additivity.com.log4j=false
If any one suggest to reduce the above properties configuration for same requirement,, please comment.
Try
log4j.appender.file.Threshold=INFO
Also see related SO question and documentation
Related
I need to create a new log file once a day, or if log file size become 250 MB. So how can i do this through log4j.properties file? Dividing by day is working, but if size become more than 250MB nothing happens.
My current property file is:
# Root logger option
log4j.rootLogger=INFO,console, file
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.rolling.RollingFileAppender
log4j.appender.file.encoding=UTF-8
log4j.appender.file.RollingPolicy=org.apache.log4j.rolling.TimeBasedRollingPolicy
log4j.appender.file.RollingPolicy.FileNamePattern=./logs/application_%d{dd-MM-yyyy}.log
log4j.appender.file.TriggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
log4j.appender.file.TriggeringPolicy.maxFileSize=250000
log4j.appender.rollingFile.MaxFileSize=10MB
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
# configuration to print on console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
As per the following log4j link https://logging.apache.org/log4php/docs/appenders/rolling-file.html, you have to add the following lines.
log4j.appender.file=org.apache.log4j.rolling.RollingFileAppender
log4j.appender.file.TriggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
log4j.appender.file.TriggeringPolicy.maxFileSize=250000
Note:
File Appender should be RollingFileAppender
Triggering Policy should be SizeBasedTriggeringPolicy
EDIT:
# Direct log messages to a log filelog4j.appender.file.encoding=UTF-8
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.TriggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
log4j.appender.file.File=${LOG_DIR}/application.log
log4j.appender.file.RollingPolicy.FileNamePattern=./logs/application_%d{dd-MM-yyyy}.log
log4j.appender.rfile.layout=org.apache.log4j.PatternLayout
log4j.appender.rfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
log4j.appender.file.MaxFileSize=250MB
log4j.appender.file.MaxBackupIndex=2
log4j.appender.file.append=true
You can refer complete example below.
https://howtodoinjava.com/log4j/log4j-rolling-file-appender/
I have a log4j properties file defined like so:
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
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
log4j.logger.com.github.user=DEBUG, file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=target/cucumber-parser.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
Based on my understanding, INFO level logging should be routed to stdout (console) and DEBUG should be only written to file. However I get both, INFO and DEBUG level in console. What am I doing wrong?
I managed to solve my problem by applying the below line to log4j.appender.stdout:
log4j.appender.stdout.Threshold=INFO
With this line added to the original configuration that I posted in my original question, only the INFO level logs will be printed to the console and DEBUG will be rerouted to a file as desired.
Because INFO level covers DEBUG level. So that you see both.
See more Logging Levels
If you check log4j doc or this tutorial you can see more information about levels, but basically: ALL < DEBUG < INFO < WARN < ERROR < FATAL < OFF
So log shows the selected level and all the greaters.
add log4j.additivity.com.github.user=false.
As in your config, level of com.github.user is being set to debug. And besides "file", it will also be additive to root logger, so you can see debug log of com.github.user in the console.
In fact, if you write the config this way, splitting loggers and appenders, you can understand better.
log4j.rootLogger=INFO, stdout
log4j.logger.com.github.user=DEBUG, file
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
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
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=target/cucumber-parser.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
For loggers, you specified com.github.user to be debug, and all others info with rootlogger setting.
Then com.github.user will be printed to file, and all logs will be printed to console . And if you set the additivity, com.github.user will be removed from rootlogger, so there will only be other logs in console.
I have java web application deployed in Tomcat. I created a classes folder under WEB-INF and had log4j.properties file under it. I want the logger to be appended in a file.
log4j.properties file :
log4j.rootLogger=DEBUG, CA
# AdminFileAppender - used to log messages in the admin.log file.
log4j.appender.AdminFileAppender=org.apache.log4j.FileAppender
log4j.appender.AdminFileAppender.File=admin.log
log4j.appender.AdminFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.AdminFileAppender.layout.ConversionPattern= %-4r [%t] %-5p %c %x - %m%n
# ReportFileAppender - used to log messages in the report.log file.
log4j.appender.ReportFileAppender=org.apache.log4j.FileAppender
log4j.appender.ReportFileAppender.File=report.log
log4j.appender.ReportFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.ReportFileAppender.layout.ConversionPattern= %-4r [%t] %-5p %c %x - %m%n
# ConsoleAppender
log4j.appender.CA=org.apache.log4j.ConsoleAppender
log4j.appender.CA.layout=org.apache.log4j.PatternLayout
log4j.appender.CA.layout.ConversionPattern= %-4r [%t] %-5p %c %x - %m%n
log4j.logger.com.sample.cfd=WARN,AdminFileAppender
log4j.logger.com.sample.cfd=DEBUG,ReportFileAppender
Code in Servlet
private static Logger logger = Logger.getLogger(CfdServlet.class);
dpPost(...){
PropertyConfigurator.configure("log4j.properties");
logger.debug("Sample debug message");
}
Error Message :
I get the following error as its not able to find my configuration file under WEB_INF/classes/log4j.properties
log4j:ERROR Could not read configuration file [log4j.properties].
java.io.FileNotFoundException: log4j.properties (No such file or directory)
Is something wrong in the location of my properties file.
Hi I am a novice and the application I am currently coding for uses struts 1.2 and java. We currently use Log4j for log files but I need to implement SMTP Appender so that our errors are emailed to us.
I've tried everything to get errors to be emailed with no luck. Below is our log4j.properties file.
Any suggestions?
Thanks!
log4j.rootLogger= INFO, stdout, logfile, mail
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n
# Keep three backup files
log4j.appender.logfile.MaxBackupIndex=3
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - <%m>%n
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=C:/LOGS/WIRE.log
log4j.appender.logfile.MaxFileSize=2048KB
#email appender
log4j.appender.mail=org.apache.log4j.net.SMTPAppender
log4j.appender.mail.BufferSize=1
log4j.appender.mail.SMTPHost=smtp.serverhere.com
log4j.appender.mail.From=johndoe#serverhere.com
log4j.appender.mail.To=johndoe#serverhere.com
log4j.appender.mail.Subject=Application Error
log4j.appender.mail.threshold=error
log4j.appender.mail.layout=org.apache.log4j.PatternLayout
log4j.appender.mail.layout.ConversionPattern=%d %p [%c] - <%m>%n
# Hibernates use of the org.apache classes spews out stuff like mad.
log4j.logger.org.apache=INFO
# Springframework is very talkative too.
log4j.logger.org.springframework=INFO
# acegisecurity
#log4j.logger.org.acegisecurity = INFO
# Quartz trigger checking
log4j.logger.org.quartz.impl.jdbcjobstore=INFO
#log4j.logger.org.springframework.scheduling.quartz=INFO
By default, the appender only sends an email when something is logged at the ERROR or FATAL levels.
As a side note, it appears that your threshold property may have improper case. I believe:
log4j.appender.mail.threshold=error
should be
log4j.appender.mail.Threshold=error
Edit...
Log4j can be put into debug mode by configuring the log4j.debug configuration property. This might provide some output regarding the SMTP appender.
Define the root logger in error level and override this for selected packages. The mail appender will remain in the error level.
# Log appenders
#log4j.rootLogger=INFO, CONSOLE
log4j.rootLogger=ERROR, FILE, MAIL
# Log levels
log4j.logger.com.example.application=INFO
log4j.logger.com.example.application.package=DEBUG
# CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5r %-5p [%t] %c{2} - %m%n
log4j.appender.CONSOLE.Encoding=UTF-8
# FILE
log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.File=/tmp/application.log
log4j.appender.FILE.MaxFileSize=1000KB
log4j.appender.FILE.MaxBackupIndex=99
log4j.appender.FILE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5r %-5p [%t] %c{2} - %m%n
log4j.appender.FILE.Encoding=UTF-8
# MAIL
log4j.appender.MAIL=org.apache.log4j.net.SMTPAppender
log4j.appender.MAIL.BufferSize=1
log4j.appender.MAIL.SMTPHost=smtp.example.com
log4j.appender.MAIL.From=application#example.com
log4j.appender.MAIL.To=developer#example.com
log4j.appender.MAIL.Subject=Exception in Application
log4j.appender.MAIL.layout=org.apache.log4j.PatternLayout
log4j.appender.MAIL.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5r %-5p [%t] %c{2} - %m%n
I am new to this forum. At first glance this community looks awesome.
I have an easy question. I am logging with log4j and am new to tomcat.
I have found the file where the log rules are set, filename: server.log4j-console.properties
I use for it to not log all digester in BATCH.debug.log
Here is the code in server.log4j-console.properties:
# eposerver logger configuration
log4j.rootLogger=DEBUG, debug-file, console
log4j.logger.systrace=DEBUG, systrace-file
log4j.logger.apptrace=DEBUG, apptrace-file
log4j.logger.ntlogger=INFO, nt-events
log4j.logger.httpclient.wire=INFO
log4j.logger.org.apache.commons.httpclient=INFO
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{2}<%M:%L> - %m%n
log4j.appender.debug-file=org.apache.log4j.RollingFileAppender
log4j.appender.debug-file.layout=org.apache.log4j.PatternLayout
log4j.appender.debug-file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{2}<%M:%L> - %m%n
log4j.appender.debug-file.File=${EPO_JAVA_DIR}/apps/var/logs/server/debug.log
log4j.appender.debug-file.MaxFileSize=2MB
log4j.appender.debug-file.MaxBackupIndex=500
log4j.appender.systrace-file=org.apache.log4j.RollingFileAppender
log4j.appender.systrace-file.layout=org.apache.log4j.PatternLayout
log4j.appender.systrace-file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{2}<%M:%L> - %m%n
log4j.appender.systrace-file.File=${EPO_JAVA_DIR}/apps/var/logs/server/systrace.log
log4j.appender.systrace-file.MaxFileSize=1MB
log4j.appender.systrace-file.MaxBackupIndex=100
log4j.appender.apptrace-file=org.apache.log4j.RollingFileAppender
log4j.appender.apptrace-file.layout=org.apache.log4j.PatternLayout
log4j.appender.apptrace-file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{2}<%M:%L> - %m%n
log4j.appender.apptrace-file.File=${EPO_JAVA_DIR}/apps/var/logs/server/apptrace.log
log4j.appender.apptrace-file.MaxFileSize=1MB
log4j.appender.apptrace-file.MaxBackupIndex=100
log4j.appender.nt-events=org.apache.log4j.nt.NTEventLogAppender
log4j.appender.nt-events.layout=org.apache.log4j.PatternLayout
log4j.appender.nt-events.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{2}<%M:%L> - %m%n0
log4j.appender.nt-events.source=eposerver
As you can tell I am new to tomcat, I am assuming this can be done in a couple of lines.
Try adding:
log4j.logger.org.apache.commons.digester=INFO