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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