Help Center/ TaurusDB/ API Reference/ APIs (Recommended)/ HTAP (Standard Edition)/ Querying Database Parameter Settings for StarRocks Data Synchronization
Updated on 2026-01-05 GMT+08:00

Querying Database Parameter Settings for StarRocks Data Synchronization

Function

This API is used to query database parameter settings for StarRocks data synchronization. Before calling this API:

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

  • If you are using role/policy-based authorization, see Permissions and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependency

    gaussdbformysql:htapInstance:listDbParameter

    List

    instance *

    • g:EnterpriseProjectId

    • g:ResourceTag/<tag-key>

    gaussdb:htapInstance:list

    -

URI

GET /v3/{project_id}/instances/{instance_id}/starrocks/databases/replication/database-parameters

Table 1 URI parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID of a tenant in a region.

To obtain this value, see Obtaining a Project ID.

Constraints

N/A

Range

The value contains 32 characters. Only letters and digits are allowed.

Default Value

N/A

instance_id

Yes

String

Definition

StarRocks instance ID, which is compliant with the UUID format.

Constraints

N/A

Range

The value contains 36 characters with a suffix of in17. Only letters and digits are allowed.

Default Value

N/A

Table 2 Query parameters

Parameter

Mandatory

Type

Description

add_task_scenario

No

String

Definition

Whether database parameters can be modified when a subtask is added.

Constraints

Optional.

Range

N/A

Default Value

N/A

offset

No

String

Definition

Index offset. If offset is set to N, the query starts from the N+1 piece of data. If the value is set to 0, indicating that the query starts from the first piece of data. The value must be a number but cannot be a negative number.

Constraints

N/A

Range

≥ 0

Default Value

0

limit

No

String

Definition

Number of records to be queried.

Constraints

N/A

Range

1–100

Default Value

1

main_task_name

No

String

Definition

Name of the main task corresponding to the new subtask.

Constraints

Optional.

Range

N/A

Default Value

N/A

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

User token. To obtain this value, call the IAM API for obtaining a user token.

The value of X-Subject-Token in the response header is the token value.

Constraints

N/A

Range

N/A

Default Value

N/A

X-Language

No

String

Definition

Request language type.

Constraints

N/A

Range

  • en-us

  • zh-cn

Default Value

en-us

Response Parameters

Status code: 200

Table 4 Response body parameter

Parameter

Type

Description

db_parameters

Array of DbParameter objects

Definition

Database parameters.

Range

N/A

Table 5 DbParameter

Parameter

Type

Description

param_name

String

Constraints

Parameter name.

Range

N/A

data_type

String

Constraints

Parameter type.

Range

  • Integer

  • String

default_value

String

Constraints

Default parameter value.

Range

N/A

value_range

String

Constraints

Parameter value range.

Range

N/A

description

String

Constraints

Parameter description.

Range

N/A

is_modifiable

String

Definition

Whether database parameters can be modified when a subtask is added.

Range

N/A

Status code: 400

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 500

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Example Request

Querying database parameter settings for data synchronization of a StarRocks instance with instance ID specified

GET https://{endpoint}/v3/{project_id}/instances/{instance_id}/starrocks/databases/replication/database-parameters

Example Response

Status code: 200

Success.

{
  "db_parameters" : [ {
    "param_name" : "enable_chunk_level_dump",
    "data_type" : "String",
    "default_value" : "false",
    "value_range" : "true|false",
    "description" : "Whether to enable shard replication.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "snapshot_with_lock",
    "data_type" : "String",
    "default_value" : "true",
    "value_range" : "true|false",
    "description" : "Whether a lock is added when a full snapshot is obtained. The default value is true.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "sync_commit_interval_ms",
    "data_type" : "Integer",
    "default_value" : "5000",
    "value_range" : "1000-60000",
    "description" : "Timeout interval for batch commit. Data is committed when the timeout interval is reached or the buffer is full.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "max_sync_commit_rows",
    "data_type" : "Integer",
    "default_value" : "500000",
    "value_range" : "500000-2000000",
    "description" : "Maximum number of rows allowed for each commit.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "max_sync_commit_bytes",
    "data_type" : "Integer",
    "default_value" : "268435456",
    "value_range" : "10485760-1610612736",
    "description" : "Maximum number of bytes allowed for each commit.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "max_full_sync_task_threads_num",
    "data_type" : "Integer",
    "default_value" : "1",
    "value_range" : "1-2",
    "description" : "Maximum threads allowed for full synchronization.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "max_rows_per_chunk",
    "data_type" : "Integer",
    "default_value" : "0",
    "value_range" : "0-1000000",
    "description" : "Maximum number of rows per shard.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "max_bytes_per_chunk",
    "data_type" : "Integer",
    "default_value" : "268435456",
    "value_range" : "33554432-1073741824",
    "description" : "Maximum number of bytes per shard.",
    "is_modifiable" : "Yes"
  }, {
    "param_name" : "binlog_expire_logs_seconds",
    "data_type" : "Integer",
    "default_value" : "86400",
    "value_range" : "0-604800",
    "description" : "Binlog retention period, which must be no greater than that of TaurusDB. The value 0 indicates that the retention period is not limited.",
    "is_modifiable" : "Yes"
  } ]
}

Status code: 400

Client error.

{
  "error_code" : "DBS.200022",
  "error_msg" : "Instance not found."
}

SDK Sample Code

The SDK sample code is as follows.

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.gaussdb.v3.region.GaussDBRegion;
import com.huaweicloud.sdk.gaussdb.v3.*;
import com.huaweicloud.sdk.gaussdb.v3.model.*;


public class ListStarRocksDbParametersSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        GaussDBClient client = GaussDBClient.newBuilder()
                .withCredential(auth)
                .withRegion(GaussDBRegion.valueOf("<YOUR REGION>"))
                .build();
        ListStarRocksDbParametersRequest request = new ListStarRocksDbParametersRequest();
        request.withInstanceId("{instance_id}");
        try {
            ListStarRocksDbParametersResponse response = client.listStarRocksDbParameters(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkgaussdb.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = GaussDBClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(GaussDBRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListStarRocksDbParametersRequest()
        request.instance_id = "{instance_id}"
        response = client.list_star_rocks_db_parameters(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    gaussdb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := gaussdb.NewGaussDBClient(
        gaussdb.GaussDBClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListStarRocksDbParametersRequest{}
	request.InstanceId = "{instance_id}"
	response, err := client.ListStarRocksDbParameters(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Code

For details, see Status Codes.

Error Code

For details, see Error Codes.