Answering myself: According to ES blog <http://www.elasticsearch.org/blog/understanding-query-then-fetch-vs-dfs-query-then-fetch/> there is performance hit. It would be nice to have a feature that triggers automatically DFS based on a kinda threshold...
On Wednesday, November 5, 2014 2:44:14 PM UTC+1, Sofiane Cherchalli wrote: > > According to > http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/relevance-is-broken.html, > > the relevance is broken until we have enough data distributed uniformly > across shards. > > My question is: If I initially use the ?search_type=dfs_query_then_fetch > parameter because I few data, will it affect the performance when the > Production environment will have enough data sharded uniformly? > > Thanks. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/2d535fce-8df3-4e13-9259-b017a11ac634%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
