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. For more information about the refresh operation, see Near real-time search.
If the Elasticsearch security features are enabled, you must have the
manageindex privilege for the target data stream, index, or alias.
Use the refresh API to explicitly make all operations performed on one or more indices since the last refresh available for search. If the request targets a data stream, it refreshes 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
Refresh requests are synchronous and do not return a response until the refresh operation completes.
Refreshes are resource-intensive. To ensure good cluster performance, we recommend waiting 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,
we recommend using 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.
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
(Optional, Boolean) If
false, the request returns an error if any wildcard expression, index alias, or
_allvalue targets only missing or closed indices. This behavior applies even if the request targets other open indices. For example, a request targeting
foo*,bar*returns an error if an index starts with
foobut no index starts with
(Optional, 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. Valid values are:
- Match any data stream or index, including hidden ones.
- Match open, non-hidden indices. Also matches any non-hidden data stream.
- Match closed, non-hidden indices. Also matches any non-hidden data stream. Data streams cannot be closed.
Match hidden data streams and hidden indices. Must be combined with
closed, or both.
- Wildcard patterns are not accepted.
(Optional, Boolean) If
false, the request returns an error if it targets a missing or closed index. Defaults to