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RDS for PostgreSQL

Managing connections

ModifyDBEndpointReadWriteDelayThreshold

Call the ModifyDBEndpointReadWriteDelayThreshold API to modify the read-only latency threshold of an endpoint.

Request type

Synchronous request.

Precautions

Read/Write separation function of the connected endpoint is enabled.

This API only applies to the default endpoint, as read/write separation is supported only on the default endpoint.

Debug

API Explorer

You can initiate calls online through API Explorer without paying attention to the signature generation process and quickly obtain the call results.

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Request parameters

Parameter	Type	Is it required?	Example	Description
InstanceId	String	Yes	postgres-0af11cd4****	Instance ID.
EndpointId	String	Yes	postgres-0af11cd4****-cluster	Instance ID.
ReadOnlyNodeMaxDelayTime	Integer	Yes	30	Maximum latency threshold for read-only nodes. When the latency of a read-only node exceeds this value, read traffic will not be directed to that node. Unit: seconds. Value range: 0-3,600.

Response parameter

null

Sample

Sample request

POST /?Action=ModifyDBEndpointReadWriteDelayThreshold&Version=2022-01-01 HTTP/1.1​
Content-Type: application/json​
Host: rds-postgresql.cn-beijing.volcengineapi.com​
X-Date: 20231002T101010Z​
Authorization: HMAC-SHA256 Credential=AKLTN2I0MmFiNzMxNWE5NDgzMzk4MmVjMTVkODlkZTZ****/20211202/cn-beijing/rds_postgresql/request,SignedHeaders=x-date, Signature=71d31fc7bcf990142851c9833c5656391486cda0ae2e0b8ada733b7c6458****​
{​
    "InstanceId": "postgres-0af11cd4****",​
    "EndpointId": "postgres-0af11cd4****-cluster",​
    "ReadOnlyNodeMaxDelayTime": 80​
}​

Sample response

{​
    "ResponseMetadata": {​
        "RequestId": "2023101118285676A8F34389CC270EE9CA",​
        "Action": "ModifyDBEndpointReadWriteDelayThreshold",​
        "Version": "2022-01-01",​
        "Service": "rds_postgresql",​
        "Region": "cn-beijing"​
    },​
    "Result": null​
}​

Last updated: 2026.03.31 10:45:18