Logger suddenly stops working after call a method of third party jar. I have checked code of jar, they are also using log4j with log4j.xml. I am configuring log4j by using the properties file.
My log4j configuration
log4j.rootLogger=DEBUG, stdout, R
#log4j.rootLogger=ERROR, stdout, R
log4j.appender.R.File=/logs/app_test.log
log4j.appender.R.MaxFileSize=10MB
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.MaxBackupIndex=175
log4j.appender.R.layout.ConversionPattern=%d %p %t %c - %m%n
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.R=org.apache.log4j.RollingFileAppender
Third party logs configuration (log4j.xml)
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<!--Pattern used: Date Thread_Name Full_Class_Name.Method_Name Level:Line
no -->
<!-- %-23d{ISO8601} [THREAD:%t] [%-2c.%M():%L] [%p] - %m%n -->
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="consoleAppender" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%-23d{ISO8601} [%-5p] [%-22t] [%-30C{1}:%4L] - %m%n" />
</layout>
</appender>
<appender name="errorAppender" class="org.apache.log4j.RollingFileAppender">
<param name="File"
value="${catalina.base}/logs/metascan/metsascanWrapperError.log" />
<param name="maxFileSize" value="10MB" />
<param name="Threshold" value="ERROR" />
<param name="maxBackupIndex" value="2" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy MM dd HH:mm:ss:SSS} [%-40t] %5p - %m %n" />
</layout>
</appender>
<appender name="infoAppender" class="org.apache.log4j.RollingFileAppender">
<param name="File"
value="${catalina.base}/logs/metascan/metsascanWrapperInfo.log" />
<param name="maxFileSize" value="10MB" />
<param name="maxBackupIndex" value="2" />
<param name="Threshold" value="INFO" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%-23d{ISO8601} [%-5p] [%-22t] [%-30C{1}:%4L] - %m%n" />
</layout>
</appender>
<appender name="debugAppender" class="org.apache.log4j.RollingFileAppender">
<param name="File"
value="${catalina.base}/logs/metascan/metsascanWrapperDebug.log" />
<param name="maxFileSize" value="10MB" />
<param name="maxBackupIndex" value="2" />
<param name="Threshold" value="DEBUG" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%-23d{ISO8601} [%-5p] [%-22t] [%-30C{1}:%4L] - %m%n" />
</layout>
</appender>
<category name="com.xerox.metascan" additivity="true">
<priority value="ERROR" />
<appender-ref ref="infoAppender" />
<appender-ref ref="debugAppender" />
<appender-ref ref="consoleAppender" />
</category>
<!-- <category name="org.springframework"> <priority value="error" /> <appender-ref
ref="infoAppender90" /> <appender-ref ref="errorAppender90" /> </category> -->
<root>
<priority value="error" />
<appender-ref ref="errorAppender" />
<appender-ref ref="consoleAppender" />
</root>
</log4j:configuration>
I have read the configuration on log4j website, preference will always go to log4j.xml over properties file. So, I don't want to change in the third party jar. I am assuming that they are overriding my log4j configuration but I don't know the exact issue because even system.out.println doesn't work.
So how we I resolve the issue, is there any way I can ignore the third party logs configuration?
Any suggestions will be helpful, Thanks.
No, You cannot ignore the third party logs, You can override them by loading externally log4j configuration.
PropertyConfigurator.configure("log4j.properties");
but ideally, this is not a good practice. You should tell them who provided you the jar and they should fix that because any third party jar should not affect your configuration.
Related
Actually i am using log4j 1.2 with an xml configration file;
Is it possible to redirect the log of each class in a specified file; i want to logg in 3 files.
<appender name="file" class="org.apache.log4j.FileAppender" >
<!-- <param name="Threshold" value="INFO" /> -->
<param name="File" value="log/archive.log" />
<param name="Append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss}] %-5p %c{1}:%L - %m%n" />
</layout>
</appender>
<appender name="file" class="org.apache.log4j.FileAppender" >
<!-- <param name="Threshold" value="INFO" /> -->
<param name="File" value="log/check.log" />
<param name="Append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss}] %-5p %c{1}:%L - %m%n" />
</layout>
</appender>
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Threshold" value="DEBUG" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %c{1}: %m [%L]%n" />
</layout>
</appender>
<logger name="org.apache.axis">
<level value="DEBUG"/>
</logger>
<root>
<priority value ="DEBUG"/>
<appender-ref ref="file" />
<appender-ref ref="console" />
</root>
you can file solution with log4j: Log output of a specific class to a specific appender
I have implemented a log4j XML file to create a new log file.in my local machine, when the tomcat starts the java web application, log file is being created without any issue.but i have hosted my java web application in aws instance configured with tomcat 7.but when i logged to aws instance and check tomcat log folder grid-services.log file cannot be located.can anyone tell why this happened?
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd" >
<log4j:configuration debug="false">
<appender name="default.console" class="org.apache.log4j.ConsoleAppender">
<param name="target" value="System.out" />
<param name="threshold" value="debug" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{ISO8601} %-5p [%c{1}] - %m%n" />
</layout>
</appender>
<appender name="default.file" class="org.apache.log4j.FileAppender">
<param name="file" value="${catalina.home}/logs/grid-services.log" />
<param name="append" value="false" />
<param name="threshold" value="debug" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{ISO8601} %-5p [%c{1}] - %m%n" />
</layout>
</appender>
<logger name="com.customer"
additivity="false">
<level value="info" />
<appender-ref ref="default.file" />
</logger>
<root>
<priority value="info" />
<appender-ref ref="default.console" />
<appender-ref ref="default.file" />
</root>
</log4j:configuration>
Look in your ${TOMCAT_HOME}/bin/catalina.sh. Check if the
-Dcatalina.home=
variable is set on your aws instance.
In my Tomcat application, I want to use two loggers to log general event informations and errors to two different files.
Logger eventLogger = Logger.getLogger("event");
Logger errorLogger = Logger.getLogger("error");
Now I want to do the following: the logs of the eventLogger should be written to a "events.log" file, and the errorLogger logs should be written in a "errors.log" file. All logs from any other logger (e.g. Tomcat logs) should be written to catalina.out (or any other default file).
How can I achive this with JULI? Or do I need a third party lib?
This can't be achieved with Juli. You might use log4j.
Basically you need appenders. They will manage the logs to go to separate files. Example configuration in xml:
<?xml version="1.0"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.EnhancedPatternLayout">
<param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%t][%c{1}:%L] %m%n" />
</layout>
</appender>
<appender name="eventFILE" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="#tomcat.home#/logs/event.log" />
<param name="DatePattern" value="'.'yyyy-MM-dd" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n"/>
</layout>
</appender>
<appender name="errorFILE" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="#tomcat.home#/logs/error.log" />
<param name="DatePattern" value="'.'yyyy-MM-dd" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n"/>
</layout>
</appender>
<logger name="event" additivity="false">
<level value="INFO" />
<appender-ref ref="eventFILE" />
</logger>
<logger name="error" additivity="false">
<level value="INFO" />
<appender-ref ref="errorFILE" />
</logger>
<root>
<priority value="INFO" />
<appender-ref ref="FILE" />
</root>
</log4j:configuration>
you have to define an appender for each file in your log4j.xml and connect them to your loggers:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<!-- Appenders -->
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{ISO8601} %5p [%c.%M:%L] - %m%n" />
</layout>
</appender>
<appender name="FILE-error" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="${catalina.base}/logs/error.log" />
<param name="DatePattern" value="'.'yyyy-MM-dd" />
<param name="ImmediateFlush" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{ISO8601} %5p [%c.%M:%L] - %m%n" />
</layout>
</appender>
<appender name="FILE-event" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="${catalina.base}/logs/event.log" />
<param name="DatePattern" value="'.'yyyy-MM-dd" />
<param name="ImmediateFlush" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss};%m%n" />
</layout>
</appender>
<!-- Loggers -->
<logger name="error" additivity="false">
<level value="warn" />
<appender-ref ref="FILE-error" />
</logger>
<logger name="event" additivity="false">
<level value="info" />
<appender-ref ref="FILE-event" />
</logger>
<!-- Root Logger -->
<root>
<priority value="warn" />
<appender-ref ref="FILE-error" />
</root>
</log4j:configuration>
Tomcat documentation does not provide any way to define more than one file per application when using JULI. Actually it provides the steps to use log4j instead of it because JULI configuration can be too basic.
But again this configuration is at container level:
Note: The steps described in this section are needed when you want to
reconfigure Tomcat to use Apache log4j for its own logging. These
steps are not needed if you just want to use log4j in your own web
application. — In that case, just put log4j.jar and log4j.properties
into WEB-INF/lib and WEB-INF/classes of your web application.
So using a third party library is the logical choice and you can find how to configure it in this SO post
Tomcat JULI logging supports this only via the logging.properties located in the ${catalina.base}/config folder.
#Declares the handlers allowed for use.
handlers = 100catalina.org.apache.juli.FileHandler, 200catalina.org.apache.juli.FileHandler, 300catalina.org.apache.juli.FileHandler
#Install the 'all' hander on the root logger.
.handlers=300catalina.org.apache.juli.FileHandler
#Install the 'event' handler on the 'event' logger and don't report to root.
event.handlers=100catalina.org.apache.juli.FileHandler
event.useParentHandlers=false
#Install the 'error' handler on the 'error' logger and don't report to root.
error.handlers=200catalina.org.apache.juli.FileHandler
error.useParentHandlers=false
#Event handler settings.
100catalina.org.apache.juli.FileHandler.level = ALL
100catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
100catalina.org.apache.juli.FileHandler.prefix = event.
#Error handler settings.
200catalina.org.apache.juli.FileHandler.level = ALL
200catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
200catalina.org.apache.juli.FileHandler.prefix = error.
#Root handler settings.
300catalina.org.apache.juli.FileHandler.level = ALL
300catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
300catalina.org.apache.juli.FileHandler.prefix = all.
This config will not work if you try to install this file in the WEB-INF/classes/logging.properties. This is because the ClassLoaderLogManager doesn't allow you to install handlers on named loggers.
My Requirement is to create a Project specific Log file, but while deploying application caa-web.log file is created in server logs folder. But all the logs are updated in server.log only.
Dependency jars:
slf4j-log4j12
slf4j-api
jcl-over-slf4j
Log4j.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"
debug="false">
<appender name="FileAppender" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="${jboss.server.log.dir}/caa-web.log" />
<param name="MaxFileSize" value="25MB" />
<param name="MaxBackupIndex" value="10" />
<param name="Append" value="false" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p %c %x - %L %m%n" />
<!-- <param name="ConversionPattern" value="%d{dd-MM-yyyy HH:mm:ss} %-5p %c{1}:%L %m %n" /> -->
</layout>
</appender>
<root>
<priority value="INFO" />
<appender-ref ref="FileAppender" />
</root>
</log4j:configuration>
Please help me to resolve this issue.
Below is a code of the log4j.xml file we are using at my firm. We been trying to change it to log only output from classes with made that is in org.xxxx. can someone let me know if this can be done and how to do it
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
</appender>
<appender name="logfile" class="org.apache.log4j.FileAppender">
<param name="File" value="logs/disater_relief.log" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
</appender>
<appender name="rollinglogfile" class="org.apache.log4j.RollingFileAppender">
<param name="file" value="logs/ennrollment.log" />
<param name="immediateFlush" value="true" />
<param name="append" value="true" />
<param name="maxFileSize" value="1MB" />
<param name="maxBackupIndex" value="3" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
</appender>
<appender name="dailyrollinglogfile" class="org.apache.log4j.DailyRollingFileAppender">
<param name="file" value="logs/ennrollment.log" />
<param name="immediateFlush" value="true" />
<param name="append" value="true" />
<param name="datePattern" value=" '.' yyyy-MM-dd "/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
</layout>
</appender>
<root>
<priority value="debug" />
<appender-ref ref="console" />
<appender-ref ref="dailyrollinglogfile" />
</root>
</log4j:configuration>
Your root looger defines debug logging for all components. You should change it to warn (so you still see warnings) and add an extra logger for your own components:
<logger name="com.xxx.mycomponent">
<level value="trace"/>
<!-- appenders ... -->
</logger>
<root>
<priority value="warn" />
<appender-ref ref="console" />
<appender-ref ref="dailyrollinglogfile" />
</root>
Simply turn off the logging for the package you don't want to see in your logs...
<!-- Limit JBoss categories -->
<category name="org.jboss">
<priority value="OFF"/>
</category>