Method: Elasticsearch::API::Indices::Actions#refresh

Defined in:
lib/elasticsearch/api/actions/indices/refresh.rb

#refresh(arguments = {}) ⇒ Object

Refresh an index. A refresh makes recent operations performed on one or more indices available for search. For data streams, the API runs the refresh operation on the stream’s backing indices. By default, Elasticsearch periodically refreshes indices every second, but only on indices that have received one search request or more in the last 30 seconds. You can change this default interval with the ‘index.refresh_interval` setting. In Elastic Cloud Serverless, the default refresh interval is 5 seconds across all indices. Refresh requests are synchronous and do not return a response until the refresh operation completes. Refreshes are resource-intensive. To ensure good cluster performance, it’s recommended to wait for Elasticsearch’s periodic refresh rather than performing an explicit refresh when possible. If your application workflow indexes documents and then runs a search to retrieve the indexed document, it’s recommended to use the index API’s ‘refresh=wait_for` query parameter option. This option ensures the indexing operation waits for a periodic refresh before running the search.

Parameters:

  • (defaults to: {})

    a customizable set of options

Options Hash (arguments):

  • :index (String, Array) —

    Comma-separated list of data streams, indices, and aliases used to limit the request. Supports wildcards (‘*`). To target all data streams and indices, omit this parameter or use `*` or `_all`.

  • :allow_no_indices (Boolean) —

    If ‘false`, the request returns an error if any wildcard expression, index alias, or `_all` value targets only missing or closed indices. This behavior applies even if the request targets other open indices. Server default: true.

  • :expand_wildcards (String, Array<String>) —

    Type of index that wildcard patterns can match. If the request can target data streams, this argument determines whether wildcard expressions match hidden data streams. Supports comma-separated values, such as ‘open,hidden`. Server default: open.

  • :ignore_unavailable (Boolean) —

    If ‘false`, the request returns an error if it targets a missing or closed index.

  • :error_trace (Boolean) —

    When set to ‘true` Elasticsearch will include the full stack trace of errors when they occur.

  • :filter_path (String, Array<String>) —

    Comma-separated list of filters in dot notation which reduce the response returned by Elasticsearch.

  • :human (Boolean) —

    When set to ‘true` will return statistics in a format suitable for humans. For example `“exists_time”: “1h”` for humans and `“exists_time_in_millis”: 3600000` for computers. When disabled the human readable values will be omitted. This makes sense for responses being consumed only by machines.

  • :pretty (Boolean) —

    If set to ‘true` the returned JSON will be “pretty-formatted”. Only use this option for debugging only.

  • :headers (Hash) —

    Custom HTTP headers

See Also:



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# File 'lib/elasticsearch/api/actions/indices/refresh.rb', line 61

def refresh(arguments = {})
  request_opts = { endpoint: arguments[:endpoint] || 'indices.refresh' }

  defined_params = [:index].each_with_object({}) do |variable, set_variables|
    set_variables[variable] = arguments[variable] if arguments.key?(variable)
  end
  request_opts[:defined_params] = defined_params unless defined_params.empty?

  arguments = arguments.clone
  headers = arguments.delete(:headers) || {}

  body = nil

  _index = arguments.delete(:index)

  method = Elasticsearch::API::HTTP_POST
  path   = if _index
             "#{Utils.listify(_index)}/_refresh"
           else
             '_refresh'
           end
  params = Utils.process_params(arguments)

  Elasticsearch::API::Response.new(
    perform_request(method, path, params, body, headers, request_opts)
  )
end