How to createID and pick latest n entries from the set in elasticsearch

0
votes

in golang how to use user generated id and increment it for every new entry? I tried 

  Index(KpiIndex).
      Type(KpiDocType).
      Id(ids).                                                              => Id will take only stings.
      BodyJson(kpis).
      Do(elasticSearchContext)

And when data is getting stored in ES, it is getting stored in randomly say

{ "took" : 5, "timed_out" : false, "_shards" : { "total" : 5, "successful" : 5, "failed" : 0 }, "hits" : { "total" : 4, "max_score" : 1.0, "hits" : [ { "_index" : "kpi", "_type" : "kpi", "_id" : "AWIexPLwnbh5r7Xr9nsL", "_score" : 1.0, "_source" : { "date" : "2018-03-13 15:20:45", "kpi" : [ {

          "Static_limit" : 0
        },
        {
          "CpuAverageLoad" : 0,
          ...,
          "NodeType" : "kkk",
          "State" : "online"
        }
      ]
    }
  },
  {
    "_index" : "kpi",
    "_type" : "kpi",
    "_id" : "AWIexYy1_xnN0Y7Qo1HE",
    "_score" : 1.0,
    "_source" : {
      "date" : "2018-03-13 15:21:25",
      "kpi" : [
        {
          "CpuAverageLoad" : 0,
          },
        {
          "CpuAverageLoad" : 0,
          ...,
          "NodeType" : "kkk",
          "State" : "online"
        }
      ]
    }
  },
  {
    "_index" : "kpi",
    "_type" : "kpi",
    "_id" : "AWIexdrLnbh5r7Xr9nsM",
    "_score" : 1.0,
    "_source" : {
      "date" : "2018-03-13 15:21:45",
      "kpi" : [
        {

          "Static_limit" : 0
        },
        {
          "CpuAverageLoad" : 0,
          ...,
          "NodeType" : "kkk",
          "State" : "online"
        }
      ]
    }
  },
  {
    "_index" : "kpi",
    "_type" : "kpi",
    "_id" : "AWIexT52BjtG8JuPSysx",
    "_score" : 1.0,
    "_source" : {
      "date" : "2018-03-13 15:21:05",
      "kpi" : [
        {

          "Static_limit" : 0
        },
        {
          "CpuAverageLoad" : 0,
          ...,
          "NodeType" : "kkk",
          "State" : "online"
        }
      ]
    }
  }
]

} }

When we observe the 'data' field, the order is 

"date" : "2018-03-13 15:20:45",
"date" : "2018-03-13 15:21:25",
"date" : "2018-03-13 15:21:45",
"date" : "2018-03-13 15:21:05",

where as the correct order should be

"date" : "2018-03-13 15:20:45",
"date" : "2018-03-13 15:21:05",
"date" : "2018-03-13 15:21:25",
"date" : "2018-03-13 15:21:45"
1
elasticsearchelasticsearch-5

1 Answers

1
votes

You can use a property into json body which value will be GUID. Hence, define the property as an _id property. Its the way for define index id.