I tried to use this filter for limiting number of errors sent to production support. but, without a time duration, it is not practical, because if i set the repetition limit to 3, for example, it will be never logged again. this is not good since i won't be able to tell whether this is caused by the problem being gone or by the filtering. it would be more useful, for my purpose at least, to have some property specifiying some time window. For example, drop logging if within 1 hour a message have been repeated more than 3 times. this will limit the number of repeated messages, but also keep throwing them to indicate the continued existence of the error. -- View this message in context: http://old.nabble.com/additional-feature-for-DuplicateMessageFilter-desired-... Sent from the Logback User mailing list archive at Nabble.com.