It really depends on the schema change... Any addition/deletion usually implies you can avoid re-indexing if you don't care the old documents will remain outdated. But doing a type change, or a change to the data structures involved ( such enabling docValues, norms ect ect) without a full re-index is a NO-GO ( you can introduce a lot of subtle problems, not immediately visible)
There have been a lot of discussions in the past to allow Solr manage schema changes on the fly ( with background jobs transparent to the user/administrator), but nothing concrete yet that I know. Cheers ----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- View this message in context: http://lucene.472066.n3.nabble.com/Issue-with-facet-count-tp4329056p4329157.html Sent from the Solr - User mailing list archive at Nabble.com.