Are you showing the facets with &facet parameters in your request?
Then you can ask for the facets to be returned sorted by byte-order with
facet.sort=index.
Got nothing to do with your schema, let alone your DIH import
configuration that you showed us. Just a matter of how you ask Solr for
> But this doesnt give me the facets in an alphabetical
> order.
>
> Besides the features facet, I also have some other facets
> that ALSO need to
> be shown in alphabetical order. How to approach this?
&facet.sort=false
http://wiki.apache.org/solr/SimpleFacetParameters#facet.sort
