Since we (Zalando) are heavy PostgreSQL users, we also had the need for monitoring and part of the result we came up with is http://zalando.github.io/PGObserver

Since we (Zalando) are heavy PostgreSQL users, we also had the need for monitoring and part of the result we came up with is http://zalando.github.io/PGObserver/ http://zalando.github.io/PGObserver/ and https://github.com/zalando/pg_view https://github.com/zalando/pg_view