Below is an example of some configuration that I use to do the same thing. I hate that there is a requirement in my organization to do this however, it's the wrong way about it if you ask me. For my money, I think you need to strive for log centralization and this represents an effort to decentralize logs. There are a set of tools that I'd recommend using for log centralization. Namely, Logstash backed by Elasticsearch and Kibana. I'd urge you to look at how these tools can help you.

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true">
<contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
<resetJUL>true</resetJUL>
</contextListener>
<property name="contextName" value="someapp" />
<contextName>${contextName}</contextName>
<jmxConfigurator />
<appender name="default" class="ch.qos.logback.core.rolling.RollingFileAppender">
<append>true</append>
<file>${logging.log_dir}/${contextName}.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<cleanHistoryOnStart>true</cleanHistoryOnStart>
<maxHistory>${logging.appender_max_file_history:-1}</maxHistory>
<fileNamePattern>${logging.log_archive_dir}/${contextName}.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>${logging.appender_max_file_size}</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
<encoder class="${logging.encoder.default}" />
</appender>
<appender name="error" class="ch.qos.logback.core.rolling.RollingFileAppender">
<append>true</append>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<file>${logging.log_dir}/${contextName}-errors.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<cleanHistoryOnStart>true</cleanHistoryOnStart>
<maxHistory>${logging.appender_max_file_history:-1}</maxHistory>
<fileNamePattern>${logging.log_archive_dir}/${contextName}-errors.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>${logging.appender_max_file_size}</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
<encoder class="${logging.encoder.default}" />
</appender>
<root level="${logging.level.default}">
<appender-ref ref="default"/>
<appender-ref ref="error"/>
</root>
</configuration>

On Wed, Mar 12, 2014 at 11:51 AM, Chandraprakash <chandraprakash.kalwar@gmail.com> wrote:

Dear Troy,

Thanks a lot to help with the appender configurations. I applied the similar
configurations and it is working for me now :-)

Now I am trying to get all the 'info' and 'error' level logs in one
file(infoLogAppender) and all the 'error' level logs in a sepaate
log(errorLogAppender) as well. I tried it using 'LevelFilter' and using
'logger' as well, but it did not work. My configurations looks like:

<property name="logging.log_dir" value="C:/Logs"/>
<property name="logging.log_archive_dir" value="C:/Logs/Archive"/>

<property name="infoLogName" value="someInfoLog"/>
<property name="errorLogName" value="someErrorLog"/>

<property name="consoleLogName" value="consoleLog"/>

<appender name="infoLogAppender"

class="ch.qos.logback.core.rolling.RollingFileAppender">
<append>true</append>

<file>${logging.log_dir}/${infoLogName}.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<maxHistory>10</maxHistory>

<fileNamePattern>${logging.log_archive_dir}/${infoLogName}.%d{yyyy-MM-dd}.%i.log.zip</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10KB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>

<encoder>

<pattern>%-30(%d{HH:mm:ss.SSS} [%thread]) %-5level %-20.50logger{35}
- %msg%n</pattern>

<immediateFlush>false</immediateFlush>
</encoder>
</appender>

<appender name="errorLogAppender"

class="ch.qos.logback.core.rolling.RollingFileAppender">
<append>true</append>

<file>${logging.log_dir}/${errorLogName}.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<maxHistory>10</maxHistory>

<fileNamePattern>${logging.log_archive_dir}/${errorLogName}.%d{yyyy-MM-dd}.%i.log.zip</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

<maxFileSize>1MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
<encoder>

<pattern>%-30(%d{HH:mm:ss.SSS} [%thread]) %-5level %-20.50logger{35}
- %msg%n</pattern>

<immediateFlush>true</immediateFlush>

</encoder>
</appender>

<appender name="consoleAppender"
class="ch.qos.logback.core.ConsoleAppender">
<append>true</append>
<file>${logging.log_dir}/${consoleLogName}.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<maxHistory>10</maxHistory>

<fileNamePattern>${logging.log_archive_dir}/${consoleLogName}.%d{yyyy-MM-dd}.%i.log.zip</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

<maxFileSize>1MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
<encoder>

<pattern>%-30(%d{HH:mm:ss.SSS} [%thread]) %-5level %-20.50logger{35}
- %msg%n</pattern>

<immediateFlush>true</immediateFlush>

</encoder>
</appender>

<root level="TRACE" additivity="true">

<appender-ref ref="infoLogAppender" />
<appender-ref ref="errorLogAppender" />
<appender-ref ref="consoleAppender" />
</root>

I get some logs on console as well(mainly JPA related). I want them in a
separate log file(consoleAppender). It is also not working.

Could you help here as well? Might be with some example?

Regards,
Chandra

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