Hello Joop, I do not have the time to look at this at present time. However, I suggest that you enter a jira issue and I'll look into asap. There are other user who have encountered problems with context selectors. So entering a new issue will raise the priority of context selectors. Of the top of my head, I suggest that you try using context selectors without installing jul-to-slf4j nor jcl-over-slf4j to see if that makes a difference. I suspect not installing jul-to-slf4j might make a difference. (I am just guessing. Tomcat 5.5 leaks into the web-apps if the they use commong-logging+log4j. Tomcat 6.x might have different a leakage. Alternatively, it might just a bug in logback.) Joop Vriend wrote:

Hi,

I'm having problems using (or configuring?) the logback Context Selector. I followed all the instructions of the manual:

http://logback.qos.ch/manual/contextSelector.html

But I get the error-message:

20:10:26,365 |-ERROR in Logger[com.ddnh.product.ncmdb] - No appenders present in context [ContextApp-NCMDB] for logger [com.ddnh.product.ncmdb].

And when undeploying also:

About to detach context named ContextApp-NCMDB No context named ContextApp-NCMDB was found.

I'm using Tomcat 6.0 (with -Dlogback.ContextSelector=JNDI). I placed all the slf4j and logback jars in the TOMCAT_HOME/lib directory:

slf4j-api-1.5.5.jar logback-core-0.9.11.jar logback-classic-0.9.11.jar logback-access-0.9.11.jar jul-to-slf4j-1.5.5.jar jcl-over-slf4j-1.5.5.jar janino.jar

I edited my web.xml of my webapp "NCMDB":

<env-entry> <description>JNDI logging context for this app</description> <env-entry-name>logback/context-name</env-entry-name> <env-entry-type>java.lang.String</env-entry-type> <env-entry-value>ContextApp-NCMDB</env-entry-value> </env-entry>

<env-entry> <description>URL for configuring logback context</description> <env-entry-name>logback/configuration-resource</env-entry-name> <env-entry-type>java.lang.String</env-entry-type> <env-entry-value>logback.xml</env-entry-value> </env-entry>

<listener>

<listener-class>ch.qos.logback.classic.selector.servlet.ContextDetachingSCL</listener-class> </listener>

<filter> <filter-name>LoggerContextFilter</filter-name>

<filter-class>ch.qos.logback.classic.selector.servlet.LoggerContextFilter</filter-class> </filter> <filter-mapping> <filter-name>LoggerContextFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>

And the logback.xml (in WEB-INF/classes) is as follows:

<configuration>

<evaluator name="WARN_EVALUATOR"> <expression>level == WARN</expression> </evaluator>

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%date{yyyy-MM-dd HH:mm:ss} %class %method \(%file:%line\)%n %level: %message%n%caller{5,WARN_EVALUATOR}%exception{15}</pattern> </layout> </appender>

<appender name="RootFileAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <append>true</append> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

<fileNamePattern>${catalina.base}/logs/ncmdb.ddnh.%d{yyyy-MM-dd}.log.gz</fileNamePattern> </rollingPolicy> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%date{yyyy-MM-dd HH:mm:ss} %class %method \(%file:%line\)%n %level: %message%n%caller{5,WARN_EVALUATOR}%exception{15}</pattern> </layout> <filter class="ch.qos.logback.classic.filter.ThresholdFilter"> <level>DEBUG</level> </filter> </appender>

<logger name="com.ddnh.product.ncmdb" additivity="false"> <level value="DEBUG"/> <appender-ref ref="RootFileAppender"/> <appender-ref ref="RootEmailAppender"/> </logger>

<root> <level value="DEBUG"/> <appender-ref ref="STDOUT" /> <appender-ref ref="RootFileAppender"/> <appender-ref ref="RootEmailAppender"/> </root>

</configuration>

What am I doing wrong?? Any help is appreciated.

Thanks, Joop. _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user

-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch