I have used Stackdriver (http://www.stackdriver.com/ http://www.stackdriver.com/) before and it works good. It can get a bit pricey. They got bought by Google

I have used Stackdriver (http://www.stackdriver.com/ http://www.stackdriver.com/) before and it works good. It can get a bit pricey. They got bought by Google few months ago -- something to watch out for. I really had a good exp with their product.