I am using Elastic Search v 2.3.1 with lucene v5.5.0. I have a requirement which wants me to update the existing mapping for the index.
The index already has a lot of documents. So, I was wondering if there is a way in which only index data is backed and restored after putting new mapping in Elastic search?
I tried the snapshot and restore way https://www.elastic.co/guide/en/elasticsearch/reference/2.3/modules-snapshots.html but its brings back the old mapping and new mapping is overridden.
How can map the data already residing in index with new mapping in Elastic search?