How exactly does
index.refresh_interval affect search performance ?
I have an index that is updated for 10 mins twice a day. Is it sufficient to refresh it 1 time, once the updating process finishes and disable
index.refresh_interval for the rest of the time ? Or does the refresh process have other benefits even if the index isn't updated, like rearranging information, rearranging Lucene segments ?
Also, isn't the refresh management system able to see when the index hasn't been updated and not run the refresh process ? And how can this "resource consuming process" run every second ?