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layout	title	nav_order	parent	grand_parent	has_children
default	Search Relevance Stats API	65	Compare Search Results	Search relevance	false

Search Relevance Stats API

Introduced 2.7 {: .label .label-purple }

The Search Relevance Stats API provides information about Search Relevance plugin operations. The Search Relevance plugin processes operations sent by the Compare Search Results Dashboards tool.

The Search Relevance Stats API captures statistics for a one-minute interval during which it receives a request. For example, if a request is received at 23:59:59.004, statistics are collected for the 23:58:00.000--23:58:59.999 time interval.

To change the default time interval for which statistics are collected, update the searchRelevanceDashboards.metrics.metricInterval setting in the opensearch_dashboards.yml file with the new time interval in milliseconds. The opensearch_dashboards.yml file is located in the config folder of your OpenSearch Dashboards installation. For example, the following sets the interval to one second:

searchRelevanceDashboards.metrics.metricInterval: 1000

Example request

You can access the Search Relevance Stats API by providing its URL address in the following format:

<opensearch-dashboards-endpoint-address>/api/relevancy/stats

The OpenSearch Dashboards endpoint address may contain a port number if it is specified in the OpenSearch configuration file. The specific URL format depends on the type of OpenSearch deployment and the network environment in which it is hosted. {: .note}

You can query the endpoint in two ways:

By accessing the endpoint address (for example, http://localhost:5601/api/relevancy/stats) in a browser
By using the curl command in the terminal:
```
curl -X GET http://localhost:5601/api/relevancy/stats
```
{% include copy.html %}

Example response

The following is the response for the preceding request:

{
  "data": {
    "search_relevance": {
      "fetch_index": {
        "200": {
          "response_time_total": 28.79286289215088,
          "count": 1
        }
      },
      "single_search": {
        "200": {
          "response_time_total": 29.817723274230957,
          "count": 1
        }
      },
      "comparison_search": {
        "200": {
          "response_time_total": 13.265346050262451,
          "count": 2
        }
      }
    }
  },
  "overall": {
    "response_time_avg": 17.968983054161072,
    "requests_per_second": 0.06666666666666667
  },
  "counts_by_component": {
    "search_relevance": 4
  },
  "counts_by_status_code": {
    "200": 4
  }
}

Response fields

The following table lists all response fields.

Field	Data type	Description
`data.search_relevance`	Object	Statistics related to Search Relevance operations.
`overall`	Object	The average statistics for all operations.
`overall.response_time_avg`	Double	The average response time for all operations, in milliseconds.
`overall.requests_per_second`	Double	The average number of requests per second for all operations.
`counts_by_component`	Object	The sum of all `count` values for all child objects of the `data` object.
`counts_by_component.search_relevance`	The total number of responses for all operations in the `search_relevance` object.
`counts_by_status_code`	Object	Contains a list of all response codes and their counts for all Search Relevance operations.

The `data.search_relevance` object

The data.search_relevance object contains the fields described in the following table.

Field	Data type	Description
`comparison_search`	Object	Statistics related to the comparison search operation. A comparison search operation is a request that compares two queries when both Query 1 and Query 2 are entered in the Compare Search Results tool.
`single_search`	Object	Statistics related to a single search operation. A single search operation is a request to run a single query when only Query 1 or Query 2, not both, is entered in the Compare Search Results tool.
`fetch_index`	Object	Statistics related to the operation of fetching the index or indexes for a comparison search or single search.

Each of the comparison_search, single_search, and fetch_index objects contains a list of HTTP response codes. The following table lists the fields for each response code.

Field	Data type	Description
`response_time_total`	Double	The sum of the response times for the responses with this HTTP code, in milliseconds.
`count`	Integer	The total number of responses with this HTTP code.

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