Creating Active-Active Instances
Function
This API allows you to create active-active instances in different regions, so that their data can be synchronized.
Constraints
- Currently, active-active GeminiDB Cassandra instances can be created, but active-active GeminiDB HBase and DynamoDB instances cannot.
- This API can be used only for GeminiDB Cassandra instances with classic storage.
- Currently, counter tables, TRUNCATE operations, and Lucene indexes cannot be synchronized between active-active instances.
URI
POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/dual-active-relationship
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Explanation: Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints: N/A Values: N/A Default value: N/A |
instance_id |
Yes |
String |
Explanation: Instance ID Constraints: N/A Values: N/A Default value: N/A |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
Explanation: User token Constraints: N/A Values: N/A Default value: N/A |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
destination_region |
Yes |
String |
Explanation: Region where a destination instance is located Constraints: N/A Values: N/A Default value: N/A |
destination_instance_id |
Yes |
String |
Explanation: Destination instance ID Constraints: N/A Values: N/A Default value: N/A |
Response Parameters
Status code: 202
Parameter |
Type |
Description |
---|---|---|
job_id |
String |
Explanation: Task ID Values: N/A |
Status code: 400
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Explanation: Error code Values: N/A |
error_msg |
String |
Explanation: Error message Values: N/A |
Example Request
Creating active-active instances
- URI example
POST https://gaussdb-nosql.ap-southeast-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/a4d8ea2584e047439a667703c0684119in06/dual-active-relationship { "destination_region" : "ap-southeast-1", "destination_instance_id" : "a4d8ea2584e047439a667703c0684119in06" }
Example Response
Status code: 202
Success
{ "job_id" : "f85104b5-4a9c-4e0f-9505-fc5409d8f7ae" }
Status Codes
For details, see Status Codes.
Error Codes
For details, see Error Codes.
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