David, If I move all of the logback, log4j, etc jars to tomcat/lib, then it fails to find the logback.xml in my conf/Catalina/localhost directory.
Jars involved: jcl-over-slf4j-1.7.5.jar jul-to-slf4j-1.7.5.jar log4j-over-slf4j-1.7.5.jar logback-access-1.0.13.jar logback-classic-1.0.13.jar logback-core-1.0.13.jar slf4j-api-1.7.5.jar I really want to keep the logback.xml config out of the war files. Different deployments will have different logging strategies. I also need separate logback.xml's per tomcat instance. Where can I keep my config so that it can be seen when the logback jars are not in the wars? Thanks, -Chris On Thu, Sep 19, 2013 at 3:53 AM, David Roussel <[email protected]>wrote: > Where is logback on the class path? If it is in the wars, try taking it > out and putting it in the tomcat class path. > > David > > On 18 Sep 2013, at 16:30, Christopher Holt <[email protected]> wrote: > > Hello, > > I have logback configured so that code bundled in 2 different war files > under tomcat will write to the same log file which rolls daily. It's also > marked as prudent. I believe my configuration follows the guidelines from ( > http://logback.qos.ch/manual/appenders.html#prudentWithRolling). > > <configuration> > <appender name="A1" > class="ch.qos.logback.core.rolling.RollingFileAppender"> > <prudent>true</prudent> > <encoder> > <pattern>%d{dd-MM HH:mm:ss} [%t] %c %5p %m%n</pattern> > </encoder> > <rollingPolicy > class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> > > <FileNamePattern>${catalina.base}/logs/myapp.%d{yyyy-MM-dd}.log</FileNamePattern> > <MaxHistory>30</MaxHistory> > </rollingPolicy> > </appender> > > <root level="INFO"> > <appender-ref ref="A1"/> > </root> > </configuration> > > My problem is that I get lots > of java.nio.channels.OverlappingFileLockException. > ... > java.nio.channels.FileChannel.lock(FileChannel.java:860) > ch.qos.logback.core.FileAppender.safeWrite(FileAppender.java:187) > ch.qos.logback.core.FileAppender.writeOut(FileAppender.java:204) > > ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:212) > ... > > After reading the docs for OverlappingFileLockException, my hunch is that > the 2 different loggers, loaded by different class loaders within the same > JVM are both trying to lock the file, unbeknownst to each other. This > violates the rules for FileChannel.lock, which seem to ignore the issue of > locks among multiple class loaders within 1 JVM. > > Has anyone run into this issue before? Is there a simple workaround that > I'm not thinking of? > > Thanks, > Chris > > _______________________________________________ > Logback-user mailing list > [email protected] > http://mailman.qos.ch/mailman/listinfo/logback-user > > > _______________________________________________ > Logback-user mailing list > [email protected] > http://mailman.qos.ch/mailman/listinfo/logback-user >
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