es query

gistfile1.txt

     body: {
                    "query"=> {
                       "filtered"=> {
                        "filter"=> {
                            "bool"=> {
                             "must"=> [
                               {"term"=> {"status"=> 500}}, 
                                 {"term"=> {"type"=> "iis6"}}, 
                                  "range"=> {
                                   "@timestamp"=> {
                                     "gt"=> "now-2h" 
                                  }
                               }
                            ]
                         }
                        }
                      }
                     },
                    "aggs"=> {
                      "0"=> {
                        "date_histogram"=> {
                          "field"=> "@timestamp",
                          "interval"=> "2h"
                         }
                      }
                     },
                     "size"=> 0
                    }