The first query to a completion suggester field after an indexation is taking several seconds to some minutes, whereas the following queries are in the tens of milliseconds (tested in Elastic 8.3).
I think this might be due to lazy loading of new FST segments into memory - is this possible?
If so, it is possible to make this loading eager, for example with the
index.store.preload configuration? And which file extensions should be preloaded?
Preloading data into the file system cache | Elasticsearch Guide [8.3] | Elastic