You're viewing version 2.6 of the OpenSearch documentation. This version is no longer maintained. For the latest version, see the current documentation. For information about OpenSearch version maintenance, see Release Schedule and Maintenance Policy.
Clone index
The clone index API operation clones all data in an existing read-only index into a new index. The new index cannot already exist.
Example
PUT /sample-index1/_clone/cloned-index1
{
"settings": {
"index": {
"number_of_shards": 2,
"number_of_replicas": 1
}
},
"aliases": {
"sample-alias1": {}
}
}
Path and HTTP methods
POST /<source-index>/_clone/<target-index>
PUT /<source-index>/_clone/<target-index>
Index naming restrictions
OpenSearch indexes have the following naming restrictions:
- All letters must be lowercase.
- Index names can’t begin with underscores (
_) or hyphens (-). -
Index names can’t contain spaces, commas, or the following characters:
:,",*,+,/,\,|,?,#,>, or<
URL parameters
Your request must include the source and target indexes. All other clone index parameters are optional.
| Parameter | Type | Description |
|---|---|---|
| <source-index> | String | The source index to clone. |
| <target-index> | String | The index to create and add cloned data to. |
| wait_for_active_shards | String | The number of active shards that must be available before OpenSearch processes the request. Default is 1 (only the primary shard). Set to all or a positive integer. Values greater than 1 require replicas. For example, if you specify a value of 3, the index must have two replicas distributed across two additional nodes for the operation to succeed. |
| master_timeout | Time | How long to wait for a connection to the master node. Default is 30s. |
| timeout | Time | How long to wait for the request to return. Default is 30s. |
Request body
The clone index API operation creates a new target index, so you can specify any index settings and aliases to apply to the target index.
Response
{
"acknowledged": true,
"shards_acknowledged": true,
"index": "cloned-index1"
}