How do I manage schema/mapping migrations/evolutions in Elasticsearch?

Question

Flyway is a very convenient schema migration/evolution tool in the RDBMS world. I\'m looking for something similar for ES.

Even though ES is different from RDBMS and I g

Answer 1

In 2020, there seems to be an easier approach: The reindex API. You only need to do

POST _reindex
{
  "source": {
    "index": "my-index-000001"
  },
  "dest": {
    "index": "my-new-index-000001"
  }
}

and the data gets re-indexed.

I am new to Elasticsearch so don't hesitate to point out where I can improve :)