get some random documents from elasticsearch

get_random_documents.py

from elasticsearch import Elasticsearch
es = Elasticsearch(["node001.bol.com", "node002.bol.com"],
                                sniff_on_start=True,
                                # refresh nodes after a node fails to respond
                                sniff_on_connection_fail=True,
                                # and also every xxx seconds
                                sniffer_timeout=300
                                )
                                
# retrieve 2 random documents from index                               
res = es.search(index='barrie_cat_reco', doc_type='recommendation', size=2, body={"query": {"match_all": {}},  "sort": {
   "_script" : {
     "script" : "Math.random()",
     "lang" : "groovy",
     "type" : "number",
     "params" : {}
   }
 }
})