Elastic Search: aggregation random order?

Question

is it possible to have aggregations with a random order? It seems that there is only asc or desc possible?

{
\"aggs\" : {
    \"genders\" : {
        \"terms\" :         


        

Answer 1

Yes it is possible. Did it this way:

{
  "aggs": {
    "genders": {
      "terms": {
        "field": "gender",
        "size": 10,
        "order": {
          "rnd.max": "asc"
        }
      },
      "aggs": {
        "rnd": {
          "stats": {
            "script": "Math.random()"
          }
        }
      }
    }
  }
}

I'm using the stats-aggregation here as my random-number-generator, as it has a script-property, but any other metrics-aggregation with a script-property should do it also. You can play with the size-property of the terms-aggregation to control the number of buckets returned. The smaller the value is, the faster the aggregation runs.