bulk.md

Bulk Operations

Elasticsearch allows us to index, delete and update in bulk mode for much faster turnaround (saving a ton of round trip requests at the very least).

Elastic4s supports this is a very easy way. Simply use the index, update or delete syntax as before, except combine into a sequence and pass to the bulk method.

For example, multiple indexing:

val resp = client.bulk {
   index into "bands/rock" fields "name"->"coldplay",
   index into "bands/rock" fields "name"->"kings of leon",
   index into "bands/pop" fields (
      "name"->"elton john",
      "best_album"->"goodbye yellow brick road"
   )
}

And multiple deletin:g

val resp = client.bulk {
    delete id 3 from "places/cities",
    delete id 8 from "places/cities",
    delete id 3 from "music/bands"
  }

And we can even combine all the different types into a single bulk request:

val resp = client.bulk {
   index into "bands/rock" fields "name"->"coldplay",
   index into "bands/rock" fields "name"->"kings of leon",
   delete id 3 from "places/cities",
   delete id 8 from "places/cities"
}