[logback-user] HELP! Need help while deleting logback file (broken symlink - Linux)

Arnaud B. boinarnaud at gmail.com
Wed Jun 21 10:38:55 CEST 2023


Hello,

I need your help in creating log files by LOGBACK (v 1.1.4) on LINUX
environment.

When starting the application server, it generates symbolic links between
/proc/<PID>/fd/<NUM> to /appli/test/log/server_fonc.log,
appli/test/log/application.log, ...

When using the LOGBACK rollover, for example, on the hast file, the
application.log.5 file is deleted but it nevertheless generated a symbolic
link between "/proc/<PID>/fd/<NUM>" and "/appli/test/log/application.log.5".

Suddenly, I end up with a broken symbolic link and a message
"/appli/test/log/application.log.5 (deleted)" via the command "lsof -nP
+L1 | grep java"

For what? Is this a logback issue? Or, an OS problem? Any solution? Thank
you in advance for your help ;)

Example Configuration Logback for server_fonc.log :
      <appender
name="GENERAL_APPENDER" class="ch.qos.logback.core.rolling.RollingFileAppender">
             <file>/application/test/log/applicatif.log</file>
             <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                   <level>TRACE</level>
              </filter>
              <encoder>
                   <Pattern>%d;%level;%X{adresseIp};%X{sessionId};%X{Art
ifactId};%X{Version};%logger;%marker;%m%n%ex{full}
                  </Pattern>
               </encoder>

 <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">

<fileNamePattern>/appli/test/log/applicatif.log.%i</fileNamePattern>
                    <minIndex>1</minIndex>
                    <maxIndex>5</maxIndex>
                </rollingPolicy>

<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                        <maxFileSize>10MB</maxFileSize>
                 </triggeringPolicy>
        </appender>

Best,

Arnaud BOIN
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