"If you can't measure it, you can't prove you made it better" is a core value in our organisations' tech culture. We have written an interface in our framework for automatically creating new metrics and it is very easy for a developer to set up a new graph that monitors theirs code.

Now, we have another problem. There are over 2 million metrics in our monitoring system and no one knows what most of them mean. Some graphs have been set up for features that don't exist anymore, other graphs were set up by developers who have already quit, there are lot's of duplicated metrics and in general it is a mess. So we are currently working on this problem. I still would like to mention this is a better problem then not having metrics at all, but still a problem.

If you ever had a similar situation, I will be thankful if you could share your experience on how you solved it.