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From "Andreas Rytina (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-441) logger level configuration does not work correct
Date Thu, 07 Nov 2013 14:41:23 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andreas Rytina updated LOG4J2-441:
----------------------------------

    Attachment:     (was: log4jtest.zip)

> logger level configuration does not work correct
> ------------------------------------------------
>
>                 Key: LOG4J2-441
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-441
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Core
>            Reporter: Andreas Rytina
>         Attachments: log4j2.xml.row1, log4j2.xml.row10, log4j2.xml.row11, log4j2.xml.row12,
log4j2.xml.row13, log4j2.xml.row2, log4j2.xml.row3, log4j2.xml.row4, log4j2.xml.row5, log4j2.xml.row6,
log4j2.xml.row7, log4j2.xml.row8, log4j2.xml.row9
>
>
> Configuring the loglevel in the logger does not work in combination with configuring
the loglevel at the appender-refs. I analyzed this with the beta9. See the table which lists
various loglevel configurations for the 3 loggers. The column format for the table is:
> Column 1-6 are the logger with their level config (level@logger1, level@appender-ref)(level@logger2,
level@appender-ref)(level@logger3, level@appender-ref)
> Column 7 is the actual output
> Column 8 is the expected Output
> For instance the first row of the table shows a logging result which I not expected in
that way. You can take log4j2.xml.row1 to reproduce the first row. I renamed the first logger
to "com". This looks like a bug in log4j 2.0: 
> Logger1 considers the levels {info, debug, warning} but not the level trace. So what
is the default level, if there is no level defined at the logger header and also not at the
appender-ref? Here it seems that the Logger1 has the level debug as default which is not clear
for me. For me it would make sense if the default level is either OFF or ALL when there is
no explicit level set. But either way there should be a clear rule for this. The other rows
are showing similar inconsistent logging behaviour.
> |1|2|3|4|5|6|7|8|
> ||level 1 logger||level 1 appender-ref||level 2 logger||level 2 appender-ref||level 3
logger ||level 3 appender-ref||actual output||expected output||
> |-|-|-|info|debug|debug|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger1: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|Logger3: info logger
> Logger2: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger|
> |-|-|-|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger|
> |-|-|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger|
> |fatal|fatal|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger|
> |info|info|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|
> |debug|debug|info|info| |debug|no output|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|
> |info|debug|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|
> |debug|info|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|
> |debug|trace|info|info|-|debug|no output|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger|
> |-|-|info|info|fatal|debug|no output|Logger2: info logger
> Logger2: warning logger|
> |-|-|info|info|trace|debug|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger1: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger
> Logger1: trace logger|Logger2: info logger
> Logger2: warning logger|
> |-|-|-|info|trace|debug|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger1: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger
> Logger1: trace logger|Logger2: info logger
> Logger2: warning logger|
> |-|-|info|-|trace|debug|Logger3: info logger
> Logger2: info logger
> Logger1: info logger
> Logger3: debug logger
> Logger1: debug logger
> Logger3: warning logger
> Logger2: warning logger
> Logger1: warning logger
> Logger1: trace logger|Logger2: info logger
> Logger2: warning logger|
> Here is the log4j2.xml:
> {code:xml}
> <?xml version="1.0" encoding="UTF-8" ?>
> <configuration>
> 	<appenders>
> 		<console name="TestConsole0">
> 			<PatternLayout pattern="RootLogger: %msg%n"/>
> 		</console>
> 		<console name="TestConsole1">
> 			<PatternLayout pattern="Logger1: %msg%n"/>
> 		</console>
> 		<console name="TestConsole2">
> 			<PatternLayout pattern="Logger2: %msg%n"/>
> 		</console>
> 		<console name="TestConsole3">
> 			<PatternLayout pattern="Logger3: %msg%n"/>
> 		</console>
> 	</appenders>
> 	
> 	<loggers>
> 		<logger name="com" >
> 			<appender-ref ref="TestConsole1" />
> 		</logger>
> 		
> 		<logger name ="com.log4jtest" level="info">
> 			<appender-ref ref="TestConsole2" level="info"/>
> 		</logger>
> 		
> 		<logger name ="com.log4jtest.test" level="fatal">
> 			<appender-ref ref="TestConsole3" level="debug"/>
> 		</logger>
> 		
> 		<root level="error">
> 			<appender-ref ref="TestConsole0" level="error"/>
> 		</root>
> 	</loggers>
> </configuration>
> {code}
> And here are the logging calls:
> {code:title=Log4j2LogLevelTest.java|borderStyle=solid}
> package com.log4jtest.test;
> import static org.junit.Assert.*;
> import org.apache.logging.log4j.LogManager;
> import org.apache.logging.log4j.Logger;
> import org.junit.Test;
> public class Log4j2LogLevelTest {
> 	private static final Logger logger = LogManager.getLogger(Log4j2LogLevelTest.class);
> 	
> 	@Test
> 	public void testLogLevel() {
> 		logger.info("info logger");
> 		logger.debug("debug logger");
> 		logger.warn("warning logger");
> 		logger.trace("trace logger");
> 	}
> }
> {code}



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