You are viewing a plain text version of this content. The canonical link for it is here.
Posted to log4j-user@logging.apache.org by Amandeep Midha <Am...@itsprojects.com> on 2003/01/27 08:44:43 UTC
RE: Help for starter..
Hi all,
It was a great help from Rich.
I have another concern about our application maintaining conncetion pool
and logger maintaining separate connection.
what we expect is the logger to use either exisitng connection form pool or
use the DAO layer itself.
Can you help me how to proceed with that? Pls come with Any comments or
suggestions of any kind regarding the same
regards,
Amandeep
-------------------------------------------------
Amandeep Midha (CHARMIE)
IT Solutions (India) Pvt. Ltd.
No. 17, South End Road,
Basavanudi
Bangalore - 560 004. India
TEL : 91-80-6657180 EXT: 2117
MOBILE: +919844048126 (Upto March 12, 2003)
FAX: 91-80-6655755
-------------------------------------------------
Visit my site @ http://newdelhi.topcities.com
-------------------------------------------------
Madhava Reddy
<Madhava_Reddy@ico To: 'Log4J Users List' <lo...@jakarta.apache.org>
n-scm.com> cc:
Subject: RE: Help for starter..
01/27/2003 12:31
AM
Please respond to
"Log4J Users List"
Hi Mark and Rich,
Thanks for the help.. It's working fine now.
Madhav
-----Original Message-----
From: Rich Bagley [mailto:rbagley@hbs.edu]
Sent: Saturday, January 25, 2003 8:47 PM
To: Log4J Users List
Subject: RE: Help for starter..
Hi,
I think the second xml is overwriting the appender attached to root. I'd
use one xml file, with multiple appenders and loggers, something like this:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="DailyLog"
class="org.apache.log4j.DailyRollingFileAppender">
<param name="File"
value="logs/multiple/LoginTrack.log"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p
%m%n"/>
</layout>
</appender>
<appender name="Request"
class="org.apache.log4j.DailyRollingFileAppender">
<param name="File"
value="logs/multiple/RequestTrack.log"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p
%m%n"/>
</layout>
</appender>
<logger name="logging.request">
<level value="debug"/>
<appender-ref ref="Request"/>
</logger>
<logger name="logging.dailyLog">
<level value="debug"/>
<appender-ref ref="DailyLog"/>
</logger>
<root>
<priority value="debug"/>
</root>
</log4j:configuration>
In your code:
// Initialize the config
//
DOMConfigurator.configure(
"java/samples/xml/multiple/multi.xml" );
// Get the loggers
//
Logger requestLogger = Logger.getLogger
( "logging.request"
);
Logger dailyLogger = Logger.getLogger
( "logging.dailyLog" );
// Write to the logs
//
requestLogger.debug( "request message1: DEBUG" );
requestLogger.info( "request message2: INFO" );
dailyLogger.debug( "dailyLog message1: DEBUG" );
dailyLogger.info( "dailyLog message2: INFO" );
You'll get two log files.
I've attached the xml file and a test class.
Hope this helps
-Rich
>> -----Original Message-----
>> From: Madhava Reddy [mailto:Madhava_Reddy@icon-scm.com]
>> Sent: Saturday, January 25, 2003 12:07 PM
>> To: 'log4j-user@jakarta.apache.org'
>> Subject: Help for starter..
>>
>>
>> Hi,
>>
>> I'm fairly new to this Log4j.
>>
>> I have several questions.
>>
>> I am using Tomcat. I have jsps and java files. I planned to use 3 logs.
I
>> want to maintain Logs to Track Login Time, Logout Time in one log.
Second
>> log tracks Critical Requsts of all users. Third log tracks Exceptions
and
>> errors for all users.
>>
>> So, I am using DailyRollingFileAppender for these 3 logs. I am
>> configuring
>> logger by an xml file.
>>
>> Here is Loggin Track xml file. Login.xml
>> ----------------
>> <?xml version="1.0" encoding="UTF-8" ?>
>> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
>>
>> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
>>
>> <appender name="DailyLog"
>> class="org.apache.log4j.DailyRollingFileAppender">
>> <param name="File"
>> value="D:/tomcat4110/logs/smileLogs/LoginTrack.log"/>
>> <layout class="org.apache.log4j.PatternLayout">
>> <param name="ConversionPattern" value="%d %
-5p
>> %m%n"/>
>> </layout>
>> </appender>
>>
>> <root>
>> <priority value="debug"/>
>> <appender-ref ref="DailyLog"/>
>> </root>
>> </log4j:configuration>
>> ---------------
>>
>> and Request Track xml File
>>
>> ----------
>> <?xml version="1.0" encoding="UTF-8" ?>
>> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
>>
>> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
>>
>> <appender name="Request"
>> class="org.apache.log4j.DailyRollingFileAppender">
>> <param name="File"
>> value="D:/tomcat4110/logs/smileLogs/RequestTrack.log"/>
>> <layout class="org.apache.log4j.PatternLayout">
>> <param name="ConversionPattern" value="%d %
-5p
>> %m%n"/>
>> </layout>
>> </appender>
>>
>> <root>
>> <priority value="debug"/>
>> <appender-ref ref="Request"/>
>> </root>
>> </log4j:configuration>
>> ---------
>>
>> I create loggers in my java, like
>>
>> To get Login Track logger
>>
>> org.apache.log4j.xml.DOMConfigurator.configure("Login.xml");
>>
>> Logger loginLog = org.apache.log4j.Logger.getLogger("Login");
>>
>> and to get Request Logger
>>
>> org.apache.log4j.xml.DOMConfigurator.configure("Request.xml");
>>
>> Logger requestLog = org.apache.log4j.Logger.getLogger("Request");
>>
>> --------------
>>
>> When I use these logs like
>>
>> loginLog.debug("Testing Login Track ");
>> requestLog.debug(" Testing Request Track" );
>>
>> ---
>>
>> I'm getting two log files namely LoginTrack.log and
>> RequestTrack.log. But,
>> LoginTrack is empty and RequestTrack.log contains,
>>
>> 2003-01-25 17:54:57,486 DEBUG Testing Login Track
>> 2003-01-25 17:54:57,486 DEBUG Testing Request Log
>>
>> which means I am getting the same reference for the two loggers. What
>> mistake I've done? How to get 2 different instances?
>>
>> ------------
>> I receive the name of Logger as argument in Java, if I have created this
>> log, return existing, else I will create new logger and return. I will
>> maintain loggers mapping looger name -- logger.
>>
>> Please point out any mistakes or wrong apprach in the above
>> approach. Will
>> this approach creates some problems at some later poing of time?
>>
>> ---
>>
>> One more question,
>>
>> Imagine, I have successfully running tomcat with these loggers.
>> After some
>> days, the loggers size may become critical. I observed that, I can not
>> delete a log file with out stopping tomcat.. How to delete old
>> log files?
>>
>> I have more questions too.. but those are more related to Tomcat
>> than Log4j.
>> I will share those later.
>>
>> thanks for your advice..
>>
>> Madhav
>>
>>
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>