BiTel

mysql> select day, count(distinct contractId) from inet_tariff_traffic_max_detail_30_201310 group by day;
+-----+----------------------------+
| day | count(distinct contractId) |
+-----+----------------------------+
|   1 |                       1378 |
|  14 |                          1 |
|  15 |                       1378 |
+-----+----------------------------+
3 rows in set (0.09 sec)

arg0 => 2013-10-01T15:43:26.735+09:00
arg2 => <arg2 xmlns=""/>
arg3 => test@test.ru
arg4 => <arg4 xmlns=""/>

arg0 => 2013-10-01T15:43:26.735+09:00
arg1 => 1
arg2 => <arg2 xmlns=""/>
arg3 => test@test.ru
arg4 => <arg4 xmlns=""/>

<appender name="RECALCULATE" class="org.apache.log4j.RollingFileAppender">
      <param name="File" value="${log.dir.path}recalculate.log"/>
      <param name="MaxFileSize" value="100MB"/>
      <param name="MaxBackupIndex" value="2"/>
      <param name="Append" value="false"/>

      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d{MM-dd/HH:mm:ss} %5p [%t] %c{1} - %m%n"/>
      </layout>

      <filter class="ru.bitel.common.logging.Log4JMDCFilter">
         <param name="key" value="nestedContext"/>
         <param name="value" value="recalculate"/>
      </filter>
   </appender>
   

....
<appender name="ASYNC" class="ru.bitel.common.logging.Log4jAsyncAppender">
      <appender-ref ref="ALL"/>
      <appender-ref ref="ERROR"/>
                 ...
      <appender-ref ref="RECALCULATE"/>
   </appender>