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Simple Log Service:CreateConsumerGroup

Last Updated:Mar 27, 2026

Creates a consumer group for a Logstore.

Operation description

Usage notes

  • Host consists of a project name and a Simple Log Service endpoint. You must specify a project in Host.

  • You can create up to 30 consumer groups for a Logstore. The name of a consumer group must be unique in a project.

  • An AccessKey pair is created and obtained. For more information, see AccessKey pair.

The AccessKey pair of an Alibaba Cloud account has permissions on all API operations. Using these credentials to perform operations in Simple Log Service is a high-risk operation. We recommend that you use a Resource Access Management (RAM) user to call API operations or perform routine O&M. To create a RAM user, log on to the RAM console. Make sure that the RAM user has the management permissions on Simple Log Service resources. For more information, see Create a RAM user and authorize the RAM user to access Simple Log Service.

  • The information that is required to query logs is obtained. The information includes the name of the project to which the logs belong, the region of the project, and the name of the Logstore to which the logs belong. For more information, see Manage a project and Manage a Logstore.

  • Simple Log Service provides examples of both regular log consumption and consumer group-based log consumption by using Simple Log Service SDK for Java. For more information, see Consume log data and Use consumer groups to consume data.

Authentication resources

The following table describes the authorization information that is required for this operation. You can add the information to the Action element of a RAM policy statement to grant a RAM user or a RAM role the permissions to call this operation.

Action Resource
log:CreateConsumerGroup acs:log:{#regionId}:{#accountId}:project/{#ProjectName}/logstore/{#logstoreName}/consumergroup/{#ConsumerGroup}

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

log:CreateConsumerGroup

create

*LogStore

acs:log:{#regionId}:{#accountId}:project/{#ProjectName}/logstore/{#logstoreName}/consumergroup/{#ConsumerGroup}

  • log:TLSVersion
None

Request syntax

POST /logstores/{logstore}/consumergroups HTTP/1.1

Path Parameters

Parameter

Type

Required

Description

Example

logstore

string

Yes

The name of the Logstore.

aliyun-test-logstore

Request parameters

Parameter

Type

Required

Description

Example

project

string

Yes

The name of the project.

aliyun-test-project

body

object

Yes

The information about the consumer group.

consumerGroup

string

Yes

The name of the consumer group. The name must be unique in a project.

consumerGroupX

timeout

integer

Yes

The timeout period. If the server does not receive heartbeats from a consumer within the timeout period, the server deletes the consumer. Unit: seconds.

300

order

boolean

Yes

Specifies whether to consume data in sequence. Valid values:

  • true

    • In a shard, data is consumed in ascending order based on the value of the **__tag__:__receive_time__** field.

    • If a shard is split, data in the original shard is consumed first. Then, data in the new shards is consumed at the same time.

    • If shards are merged, data in the original shards is consumed first. Then, data in the new shard is consumed.

  • false Data in all shards is consumed at the same time. If a new shard is generated after a shard is split or after shards are merged, data in the new shard is immediately consumed.

true

Response elements

Element

Type

Description

Example

None defined.

Examples

Success response

JSON format

{}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.