[logback-user] Log rotation & .tmp droppings

[Bee-lindgren, Bert A]

We are seeing logback leave .tmp files behind in the log directory, presumably due to a hiccup during log rotation or gzip.

Size
2365956     Dec 11 00:00 statsreceiver.log.2010-12-10.gz
2679618     Dec 12 00:01 statsreceiver.log.2010-12-11.gz
9190879942  Dec 12 04:00 statsreceiver-debug.log23124507802228260.tmp
2542799     Dec 13 00:00 statsreceiver.log.2010-12-12.gz
9137740366  Dec 13 04:00 statsreceiver-debug.log23210907242250260.tmp
543937393   Dec 13 20:07 statsreceiver-debug.log.2010-12-13_19:00.gz
548781049   Dec 13 22:07 statsreceiver-debug.log.2010-12-13_21:00.gz
2284216     Dec 14 00:00 statsreceiver.log.2010-12-13.gz
8127562     Dec 15 00:00 statsreceiver.log.2010-12-14.gz
19067117496 Dec 15 13:00 statsreceiver-debug.log23416102512001260.tmp
18177324477 Dec 15 16:00 statsreceiver-debug.log23426920509229260.tmp
2257423     Dec 15 23:00 statsreceiver-debug.log.2010-12-15_22:00.gz


The logback jar versions are:
  WEB-INF/lib/logback-classic-0.9.26.jar
  WEB-INF/lib/logback-core-0.9.26.jar

There is only a single application writing to those files, though it is conceivable that the .tmp droppings correlate to restarts of that application.

If this is expected on application restarts, then could logback start gzip'ing them again when it comes back?


Here is the logback.xml file:
<?xml version="1.0" encoding="UTF-8"?>

<configuration scan="true" scanPeriod="60 seconds">
  <appender name="FILE_WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${logdir:-.}/${prog:-unknown}.log</file>
    <append>true</append>
    
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
      <level>warn</level>
    </filter>
    
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <fileNamePattern>${logdir:-.}/${prog:-unknown}.log.%d{yyyy-MM-dd}.gz</fileNamePattern>
      <maxHistory>7</maxHistory>
    </rollingPolicy>

     <encoder>
        <pattern>%-30(%d{yyyy-MM-dd HH:mm:ss} %.-1level :) %m Context:[%X{GTNDC_INFO}]%n</pattern>
     </encoder>
  </appender>

  <appender name="FILE_DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${logdir:-.}/${prog:-unknown}-debug.log</file>
    <append>true</append>
    
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
      <level>debug</level>
    </filter>
    
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <fileNamePattern>${logdir:-.}/${prog:-unknown}-debug.log.%d{yyyy-MM-dd_HH:00}.gz</fileNamePattern>
      <maxHistory>36</maxHistory>
    </rollingPolicy>

     <encoder>
        <pattern>%-60(%d{yyyy-MM-dd HH:mm:ss} [%thread] %.-1level :) %m Context:[%X{GTNDC_INFO}]%n</pattern>
     </encoder>
  </appender>




<logger name="org.apache.directory" level="WARN"/>


<root><level value="debug"/>
    <appender-ref ref="FILE_WARN"/>
    <appender-ref ref="FILE_DEBUG"/>
</root>

</configuration>