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Posted to notifications@logging.apache.org by "LostInKadath (via GitHub)" <gi...@apache.org> on 2026/06/01 10:31:36 UTC
[I] RollingFileAppender parameters are not really case-insensitive [logging-log4cxx]
LostInKadath opened a new issue, #697:
URL: https://github.com/apache/logging-log4cxx/issues/697
Here are two _LogSetts.txt_ files that differ in one letter:
```
log4j.appender.R = org.apache.log4j.RollingFileAppender
log4j.appender.R.File = filename.log
log4j.appender.R.MaxFileSize = 5KB
log4j.appender.R.MaxBackupIndex = 10
...
```
```
log4j.appender.R = org.apache.log4j.RollingFileAppender
log4j.appender.R.file = filename.log
log4j.appender.R.MaxFileSize = 5KB
log4j.appender.R.MaxBackupIndex = 10
...
```
After parsing _Logsetts.txt_ file, all properties are stored in `std::map` -- meaning that properties are processed in lexicographical order. For the first file `File` is processed before `MaxBackupIndex`. For the second one -- `file` is processed **after** `MaxBackupIndex`.
Why is this a problem? While `MaxBackupIndex` processing `FileAppender::getFile()` method is called ([link for rel/v1.6.1 tag](https://github.com/apache/logging-log4cxx/blob/59c99c78f8a23d8b3b3ea1e827669fc67b31dcb8/src/main/cpp/rollingfileappender.cpp#L96)). But `_priv->fileName` is empty -- it's initialized only after `file` parameter is processed.
That breaks logic for generating rolling file names -- and rolling stops working at all.
I haven't found any limitations for parameters case sensitivity. Moreover, parameters are checked in a case-insensitive way while processing. But this logic is incomplete and may even mislead a little bit.
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Re: [I] RollingFileAppender parameters are not really case-insensitive [logging-log4cxx]
Posted by "swebb2066 (via GitHub)" <gi...@apache.org>.
swebb2066 closed issue #697: RollingFileAppender parameters are not really case-insensitive
URL: https://github.com/apache/logging-log4cxx/issues/697
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