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The log4j-based logging mechanism uses appenders to append all the log messages into a file. That is, at the end of the log rotation period, a new file will be created with the appended logs and archived. The name of the archived log file will always contain the date on which the file is archived. 

Identifying forged messages: From Carbon 4.4.3 onwards, it is possible to use a UUID in the log messages so that any forged messages can be easily identified. The UUID is logged using a new conversion character ‘K’ in the log pattern layout. By default, the UUID will be generated every time the server starts. However, you can configure your server to generate the UUID more or less frequently, by specifying an exact time interval in the log4j.properties file. 

See the following topics related to log management in WSO2 Carbon products;

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