Graphite was one of the first "kick-ass" tools which helped to start #monitoringsucks/#monitoringlove movement. In 2018 it's a bit outdated, but still alive and kicking.
Upcoming Graphite 1.1 will have some nice features:
* Tag support (with (upcoming) Prometheus and Grafana integrations)
* Python 3 support
* Custom (user defined) functions
* "pipe" function chaining syntax
* Updated cluster request handling
* xFilesFactor-in-functions support
* overhauled aggregation functions
* msgpack support
and many others.