Question: I am currently using Kibana 3, configured with Elasticsearch. 
Is there any possibilities to use same Elasticsearch index with Grafana. 
I searched a lot, but all are redirecting me to use graphite.

Why is it not possible to use Elasticsearch instead of graphite ?

Any help is appreciated. Thanks.

(I am using Windows 7, just FYI)

Answer: 
Grafana 1.9 does not support elasticsearch as a datasource.   

You may try to using Version v2.0. This version allows to set elasticsearch like a datasource.
* Grafana is a frontend to Graphite.
* Kibana is a frontend to
elasticsearch.

> 
> Why is it not possible to use Elasticsearch instead of graphite ?
> 
> 
> 

Graphite stores only timeseries pair of data [time, value] whereas 
Elasticsearch can store large complex json documents. Grafana is written to *understand* just time series data and cannot 'understand' json.

FYI- Whatever your usecase, elasticsearch can handle it.