>which version are you using?<br>
<br>We are using SLF4J 1.5.10 and Logback 0.9.18.<br>We have reverted to log4j as it is working fine with log4j.<br><br>
>> We have logback configured with this configuration:<br>
>><br>
>> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"><br><div id=":13" class="ii gt">
>> <Append>true</Append><br>
>> <file>logs/process.log</file><br>
>> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><br>
>><br>
>> <FileNamePattern>logs/process-%d{yyyy-MM-dd_HH}.%i.log</FileNamePattern><br>
>> <TimeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"><br>
>> <MaxFileSize>1MB</MaxFileSize><br>
>> </TimeBasedFileNamingAndTriggeringPolicy><br>
>> </rollingPolicy><br>
>> <layout class="ch.qos.logback.classic.PatternLayout"><br>
>><br>
>> <Pattern>%date|%level|%logger{10}|%msg|%throwable{5}%n</Pattern><br>
>> </layout><br>
>> </appender><br>
>><br>
>><br>
>> The thing is that in our production environment (HP-UX) and under heavy<br>
>> load, logging was working fine for a time, and suddenly stop working.<br>
>><br>
>> From the status we see this:<br>
>> INFO in c.q.l.co.rolling.helper.RenameUtil - Renaming file<br>
>> [/gp/log/process.log] to [/gp/log/process.2009-12-16_11.22.log], ERROR in<br>
>> ch.qos.logback.core.rolling.RollingFileAppender[FILE] - IO failure in<br>
>> appender java.io.InterruptedIOException: , WARN in<br>
>> ch.qos.logback.core.rolling.RollingFileAppender[FILE] - Attempted to append<br>
>> to non started appender [FILE]., WARN in<br>
>> ch.qos.logback.core.rolling.RollingFileAppender[FILE] - Attempted to append<br>
>> to non started appender [FILE]., WARN in<br>
>> ch.qos.logback.core.rolling.RollingFileAppender[FILE] - Attempted to append<br>
>> to non started appender [FILE]., INFO in c.q.l.co.rolling.helper.RenameUtil<br>
>> - Renaming file [/gp/log/application.log] to<br>
>> [/gp/log/application.2009-12-16_11.log]]<br>
</div>