Couchbase FTS is now an official feature in version 5. Why would one still use ElasticSearch along with Couchbase?
2 Answers
Quoting from the documentation:
Couchbase FTS is similar in purpose to other search software such as ElasticSearch or Solr. Couchbase FTS is not intended as a replacement for third party search software if search is at the core of your application. It is a simple and lightweight way to add search to your Couchbase data without deploying additional software and servers. If you have many queries which look like
SELECT ... field1 LIKE %pattern% OR field2 LIKE %pattern, then full-text search may be right for you.
It will depend on your specific use case, but there is a reason why search is a complicated problem and some products spent years and years on working on that (and continue).
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