We are syncing data from Couchbase into Elasticsearch via CBES connector and have up to ~550ms delay from CBES inserting data into ES.
Afterwards it takes up to 2 seconds for data to become searchable in ES.
Do I understand correctly that there is unavoidable delay of up to 1 second from the refresh_interval index setting? Can refresh_interval be set to less than 1 second?
The goal is to decrease latency between data being inserted in Couchbase and appearing for search in Elasticsearch.