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Date: Mon, 27 May 2013 10:22:20 +0000 (UTC)
From: "Horst Beham (JIRA)" <jira@apache.org>
To: log4net-dev@logging.apache.org
Message-ID: <JIRA.12649527.1369644400859.25788.1369650140424@arcas>
In-Reply-To: <JIRA.12649527.1369644400859@arcas>
References: <JIRA.12649527.1369644400859@arcas>
Subject: [jira] [Comment Edited] (LOG4NET-378) Rolling log file is
 overwritten when application is restarted
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    [ https://issues.apache.org/jira/browse/LOG4NET-378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13667678#comment-13667678 ] 

Horst Beham edited comment on LOG4NET-378 at 5/27/13 10:20 AM:
---------------------------------------------------------------

Data is definitively lost.
File "flotto.20130527.1.log" had 4MB of log data in it (which was then rolled over to flotto.20140527.2.log) and when the process was restarted file 1.log got truncated and is currently being written to. 
I can see original log statements and timestamps in 0.log, 2.log, 3.log. The original information from 1.log is missing and the file only contains log statements since the process restarted.
When I restart the process again, file 1.log is being truncated again even though it's currently only 100KB in size.

The intention of my composite rolling appender is to roll the file when the date changes or when the current file is already larger than 4MB.
I'll download the sources now and try to find the problematic code
                
      was (Author: hbeham):
    Data is definitively lost.
File "flotto.20130527.1.log" had 4MB of log data in it (which was then rolled over to flotto.20140527.2.log) and when the process was restarted file 1.log got truncated and is currently being written to. 
I can see original log statements and timestamps in 0.log, 2.log, 3.log. The original information from 1.log is missing and the file only contains log statements since the process restarted.
When I restart the process again, file 1.log is being truncated again even though it's currently only 100KB in size.
                  
> Rolling log file is overwritten when application is restarted
> -------------------------------------------------------------
>
>                 Key: LOG4NET-378
>                 URL: https://issues.apache.org/jira/browse/LOG4NET-378
>             Project: Log4net
>          Issue Type: Bug
>    Affects Versions: 1.2.11
>            Reporter: Horst Beham
>            Priority: Minor
>
> My server process uses log files which roll on date and file size (4MB). 
> When I restart the server and there are already more than 1 log files for the current date, the 2nd segment gets overwritten and the 3rd, 4th, ... may get overwritten later, when #2 is filled up again.
> I'm using version 1.2.11, which I can't select in the "Affects Version" combo box.
> e.g. 
> flotto.20130527.0.log = 4MB
> flotto.20130527.1.log = 0MB (just got overwritten when the server was restarted)
> flotto.20130527.2.log = 4MB (still contains original data but will be overwritten too as soon as #1 fills up)
> flotto.20130527.3.log = 4MB (same as above)
> The configuration in MyServer.exe.config looks like this:
> <log4net>
>     <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
>       <file value="flotto.log" />
>       <appendToFile value="true" />
>       <encoding>utf-8</encoding>
>       <preserveLogFileNameExtension value="true"/>
>       <rollingStyle value="Composite" />
>       <staticLogFileName value="false" />
>       <datePattern value=".yyyyMMdd"/>
>       <countDirection value="1"/>
>       <maximumFileSize value="4MB" />
>       <layout type="log4net.Layout.PatternLayout">
>         <conversionPattern value="%date [%-7thread] %-5level %-35logger - %message%newline" />
>       </layout>
>     </appender>
>     <root>
>       <level value="INFO" />
>       <appender-ref ref="LogFileAppender"/>
>     </root>
>     <logger name="Flotto.FlottoService">
>       <!--<level value="DEBUG"/>-->
>     </logger>
>     <logger name="Flotto.TcpServer">
>       <!--<level value="DEBUG"/>-->
>     </logger>
>     <logger name="Flotto.UdpBroadcastReceiver">
>       <!--<level value="DEBUG"/>-->
>     </logger>
>     <logger name="Flotto.GpsTrackerGprsServer">
>       <level value="DEBUG"/>
>     </logger>
>     <logger name="Flotto.SmsAtHttpReceiver">
>       <level value="DEBUG"/>
>     </logger>
>     <logger name="Flotto.SmsAtHttpSender">
>       <level value="DEBUG"/>
>     </logger>
>     <logger name="Flotto.BulksmsComHttpReceiver">
>       <level value="DEBUG"/>
>     </logger>
>     <logger name="Flotto.BulksmsComHttpSender">
>       <level value="DEBUG"/>
>     </logger>
>     <logger name="Flotto.TrackerManager">
>       <!--<level value="INFO"/>-->
>     </logger>
>   </log4net>

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