I am completely a newbie on this. I have started to use the ELK on my system, and it is great to grab the known patterns. So far I have gotten my system to grab logfiles via Filebeat to parse the logfiles and ship it to logstash , where logstash grabs the known pattern and bob's my uncle!
However, in my situation I have a unique problem. My application sometimes fails on an unknown situation, where I want to assess and then it becomes a known pattern which I would add to logstash configuration. Is there such a system with ELK that it can grab unknown patterns and lets the system admin know ? Or some sort of visualization system that lets me know that there were logfiles that was shipped to logstash, but logstash was unable to recognize the pattern?