In the examples of the `archivedLogFilenamePattern` in a file logging appender such as https://github.com/dropwizard/dropwizard/blob/3dbcff358a2311cfc066e36085638265fef4373f/docs/source/manual/configuration.rst?plain=1#L771 The correct format should be `%i` instead of `%d`.