[jira] [Created] (LOG4NET-465) Rolling log files get overwritten when IIS is restarted

["Michel Emond (JIRA)" <ji...@apache.org>]

Michel Emond created LOG4NET-465:
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             Summary: Rolling log files get overwritten when IIS is restarted
                 Key: LOG4NET-465
                 URL: https://issues.apache.org/jira/browse/LOG4NET-465
             Project: Log4net
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 1.2.13
         Environment: asp.net 4.0
            Reporter: Michel Emond


Reproduction steps
- Setup a web application using the settings from the attached config.xml file
- Notice the rolling style set to Composite
- Start and use the application
- The log files pile up in the folder
- Restart IIS
- Keep using the application

Expected result
- The rolling continues on or after the last file

Actual result
- The rolling restarts at index 1 and overwrites the existing files

Solution

See the attached files:
- config.xml
- patch with a fix proposal

The original bug fix addresses the issue in the InitializeFromOneFile() method.
However, the GetWildcardPatternForFile() method also needs the baseFileName to be adjusted with the datePattern so the proper files are searched.
I placed a file path fix in the DetermineCurSizeRollBackups() method, so it's then passed down to the two other methods and everyone gets happy.

Here's a calling stack sample:
DetermineCurSizeRollBackups()
|
+--GetExistingFiles()
|  +--GetWildcardPatternForFile()
|
+--InitializeRollBackups()
   +--InitializeFromOneFile()




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