Updated on 2025-08-21 GMT+08:00

Modifying a Log Group

Function

This API is used to modify the log retention period of a specified log group. You can flexibly adjust the period to facilitate log data storage and management in different scenarios.

Calling Method

For details, see Calling APIs.

URI

POST /v2/{project_id}/groups/{log_group_id}

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. It can be obtained by calling an API or from the console. For details, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

N/A

log_group_id

Yes

String

Definition

Log group ID. For details about how to obtain it, see Obtaining Log Group and Log Stream IDs.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

User token obtained from IAM. For details about how to obtain it, see Obtaining a User Token.

Constraints:

N/A

Range

N/A

Default Value

N/A

Content-Type

Yes

String

Definition

Message body format. Set this parameter to application/json;charset=utf8.

Constraints

N/A

Range

N/A

Default Value

N/A

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

ttl_in_days

Yes

Integer

Definition

Log retention period for a log group. It determines how many days a log group's logs will be stored in LTS.

Constraints

N/A

Range

Minimum value: 1

Maximum value: 365

Default Value

30: By default, log data is stored for 30 days.

tags

No

Array of tagsBody objects

Definition

Log group tags.

Constraints

You can add up to 20 tags.

Table 4 tagsBody

Parameter

Mandatory

Type

Description

key

Yes

String

Definition

Tag key.

Constraints

  • Each tag key must be unique.

  • A tag is a key-value pair. Each key is paired with its corresponding value.

Range

Each tag key can contain up to 128 characters, including only letters, digits, spaces, and special characters (_.:=+-@). Do not start or end with a space, nor start with sys.

Default Value

N/A

value

No

String

Definition

Tag value.

Constraints

A tag is a key-value pair. Each key is paired with its corresponding value.

Range

  • A tag value can contain letters, digits, spaces, and special characters (_.:=+-@).

  • A tag value can contain up to 255 characters.

Default Value

N/A

Response Parameters

Status code: 200

Table 5 Response body parameters

Parameter

Type

Description

creation_time

Long

Definition

Time when the log group was created.

Range

N/A

log_group_name

String

Definition

Log group name.

Range

N/A

log_group_id

String

Definition

Log group ID.

Range

N/A

ttl_in_days

Integer

Definition

Log retention period for a log group. It determines how many days a log group's logs will be stored in LTS.

Range

N/A

Status code: 400

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Definition

Error code. For details, see Error Codes.

Range

N/A

error_msg

String

Definition

Error message.

Range

N/A

Status code: 401

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Definition

Error code. For details, see Error Codes.

Range

N/A

error_msg

String

Definition

Error message.

Range

N/A

Status code: 403

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Definition

Error code. For details, see Error Codes.

Range

N/A

error_msg

String

Definition

Error message.

Range

N/A

Status code: 500

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

Definition

Error code. For details, see Error Codes.

Range

N/A

error_msg

String

Definition

Error message.

Range

N/A

Example Requests

Modify a log group.

POST https://{endpoint}/v2/{project_id}/groups/{log_group_id}

{
  "ttl_in_days" : 8
}

Example Responses

Status code: 200

The request is successful and the log group has been modified.

{
  "creation_time" : 156541515155541,
  "log_group_name" : "string",
  "log_group_id" : "string",
  "ttl_in_days" : 8
}

Status code: 400

Invalid request. Modify the request based on the description in error_msg before a retry.

{
  "error_code" : "LTS.0009",
  "error_msg" : "Failed to validate the request body"
}

Status code: 401

Authentication failed. Check the token and try again.

{
  "error_code" : "LTS.0414",
  "error_msg" : "Invalid token"
}

Status code: 403

Request rejected.The server has received the request and understood it, but refuses to respond to it. The client should not repeat the request without modifications.

{
  "error_code" : "LTS.0001",
  "error_msg" : "Invalid projectId"
}

Status code: 500

The server has received the request but encountered an internal error.

{
  "error_code" : "LTS.0102",
  "error_msg" : "Failed to update log group"
}

SDK Sample Code

The SDK sample code is as follows.

Modify a log group.

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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.lts.v2.region.LtsRegion;
import com.huaweicloud.sdk.lts.v2.*;
import com.huaweicloud.sdk.lts.v2.model.*;


public class UpdateLogGroupSolution {

    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);

        LtsClient client = LtsClient.newBuilder()
                .withCredential(auth)
                .withRegion(LtsRegion.valueOf("<YOUR REGION>"))
                .build();
        UpdateLogGroupRequest request = new UpdateLogGroupRequest();
        request.withLogGroupId("{log_group_id}");
        UpdateLogGroupParams body = new UpdateLogGroupParams();
        body.withTtlInDays(8);
        request.withBody(body);
        try {
            UpdateLogGroupResponse response = client.updateLogGroup(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());
        }
    }
}

Modify a log group.

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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdklts.v2.region.lts_region import LtsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdklts.v2 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 = LtsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(LtsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = UpdateLogGroupRequest()
        request.log_group_id = "{log_group_id}"
        request.body = UpdateLogGroupParams(
            ttl_in_days=8
        )
        response = client.update_log_group(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Modify a log group.

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/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 := lts.NewLtsClient(
        lts.LtsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.UpdateLogGroupRequest{}
	request.LogGroupId = "{log_group_id}"
	request.Body = &model.UpdateLogGroupParams{
		TtlInDays: int32(8),
	}
	response, err := client.UpdateLogGroup(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 Codes

Status Code

Description

200

The request is successful and the log group has been modified.

400

Invalid request. Modify the request based on the description in error_msg before a retry.

401

Authentication failed. Check the token and try again.

403

Request rejected.The server has received the request and understood it, but refuses to respond to it. The client should not repeat the request without modifications.

500

The server has received the request but encountered an internal error.

Error Codes

See Error Codes.