Restoring a Snapshot
Function
This API is used to restore a specified snapshot. Use a snapshot to restore a point-in-time copy of a cluster to the original cluster or to another eligible cluster.
Constraints
-
Before snapshot restoration is completed, the indexes being restored to the destination cluster cannot be queried.
-
If the two clusters have indexes with the same names but different shard structures, such indexes cannot be restored.
Calling Method
For details, see Calling APIs.
URI
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/{snapshot_id}/restore
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| project_id | Yes | String | Definition: Project ID. For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Constraints: N/A Value range: Project ID of the account. Default value: N/A |
| cluster_id | Yes | String | Definition: Cluster ID. For details about how to obtain the cluster ID, see Obtaining the Cluster ID. Constraints: N/A Value range: Cluster ID. Default value: N/A |
| snapshot_id | Yes | String | Definition: The snapshot ID. For details, see Querying Snapshots. Constraints: The snapshot status is Available. Value range: N/A Default value: N/A |
Request Parameters
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| target_cluster | Yes | String | Definition: ID of the destination cluster to which the snapshot is restored. Constraints:
Value range: N/A Default value: N/A |
| indices | No | String | Definition: Specify the name of the index you want to restore. Constraints: The value is a string of 0 to 1024 characters that cannot contain uppercase letters, spaces, or the following special characters: "<|>/?.
Value range:
Default value: By default, this parameter is left blank. That is, no index name is specified, and all indexes will be restored. |
| rename_pattern | No | String | Definition: Rule for defining the indexes to be restored. Constraints:
Value range: The value can contain 0 to 1,024 characters. Uppercase letters, spaces, and the following special characters are not allowed: "\<|>/? Default value: N/A |
| rename_replacement | No | String | Definition: Rule for renaming an index. Constraints: The renamePattern and renameReplacement parameters must be set at the same time in order for them to take effect. Value range: The value can contain 0 to 1,024 characters. Uppercase letters, spaces, and the following special characters are not allowed: "\<|>/? For example, restored_index_$1 indicates adding the restored_ prefix to the names of all the restored indexes. Default value: N/A |
| replace_exist_indices | No | Boolean | Definition: Whether to overwrite same-name indexes in the destination cluster. Restoring a snapshot will overwrite existing data in the destination cluster. When there are same-name indexes in the destination cluster, you need to select this option in order to restore same-name, same-shard structure indexes. Indexes with a different shard structure cannot be restored. Constraints: N/A Value range:
Default value: false |
Response Parameters
Status code: 201
Resource created.
None
Example Requests
Restore a snapshot.
POST https://{Endpoint}/v1.0/{project_id}/clusters/4f3deec3-efa8-4598-bf91-560aad1377a3/index_snapshot/653c086f-ebe7-4383-b902-c031b354f1dd/restore
{
"target_cluster" : "ea244205-d641-45d9-9dcb-ab2236bcd07e",
"indices" : "myindex1,myindex2",
"rename_pattern" : "index",
"rename_replacement" : "restored_index_$1"
} Example Responses
None
Status Codes
| Status Code | Description |
|---|---|
| 201 | Resource created. |
| 400 | Invalid request. Modify the request before retry. |
| 403 | Request rejected. The server has received the request and understood it, but refused to respond to it. The client should not repeat the request without modifications. |
Error Codes
See Error Codes.
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