Update:
I have tried the following configurations:
1. Standalone lily - works
2. Standalone lily with Solr Cloud Mode - works
3. Standalone lily (only hadoop and lily ) + separate solr cluster ( this works only if the solr schema is deployed in a /solr subfolder on zookeeper. If I try to deploy solr schema under root then this doesn't work. This used to work in lily 2.0 ..maybe a bug? )
4. Full CDH + lily ..event based indexing still doesn't work.