Hi, I have recently switched to logback for tomcat6 logging. I was able to successfully set it up and log files are being created and logged into. Following is my logback.xml: ================= <?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="CONSOLE" class="org.apache.juli.logging.ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d{HH:mm:ss.SSS} %-5level {%thread} [%logger{20}] : %msg%n</pattern> </encoder> </appender> <appender name="FILE-CATALINA" class="org.apache.juli.logging.ch.qos.logback.core.rolling.RollingFileAppender"> <file>${catalina.base}/logs/catalina.log</file> <append>true</append> <encoder> <charset>utf-8</charset> <pattern>%d{HH:mm:ss.SSS} %-5level {%thread} [%logger{40}] : %msg%n</pattern> </encoder> <rollingPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${catalina.base}/logs/catalina-%d{yyyyMMdd}-%i.log.zip</fileNamePattern> <maxHistory>60<!-- days --></maxHistory> <timeBasedFileNamingAndTriggeringPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>10KB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> </appender> <appender name="FILE-LOCALHOST" class="org.apache.juli.logging.ch.qos.logback.core.rolling.RollingFileAppender"> <file>${catalina.base}/logs/localhost.log</file> <append>true</append> <encoder> <charset>utf-8</charset> <pattern>%d{HH:mm:ss.SSS} %logger{0} {%thread} %level : %msg%n</pattern> </encoder> <rollingPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${catalina.base}/logs/localhost-%d{yyyyMMdd}-%i.log.zip</fileNamePattern> <maxHistory>60<!-- days --></maxHistory> <timeBasedFileNamingAndTriggeringPolicy class="org.apache.juli.logging.ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>10KB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> </appender> <logger name="org.apache.catalina" level="INFO" additivity="false"> <appender-ref ref="FILE-CATALINA" /> </logger> <logger name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost]" level="INFO" additivity="false"> <appender-ref ref="FILE-LOCALHOST" /> </logger> <root level="INFO"> <appender-ref ref="CONSOLE" /> </root> </configuration> ================= The logback jars being used are of version logback-0.9.30 as higher version doesn't work with tomcat6. The issue is that log files for localhost appender are being rolled over, but the catalina logs are not rolled over even after reaching the specified limit, unless I restart tomcat. The tomcat6 is running on Windows Server 2008. Can anybody help me with this? Thanks Noman A.