MergeShard - Simple Log Service - Alibaba Cloud Documentation Center

Merges adjacent read/write shards.

Operation description

API description

The host consists of the project name and the Simple Log Service endpoint. You must specify the project in the host.
Each shard has a range, which is a left-closed, right-open MD5 interval of [BeginKey,EndKey). The status of a shard can be readwrite or readonly. You can split and merge shards. For more information, see Shards.
You must have an AccessKey pair. For more information, see AccessKey pair.

An AccessKey pair for an Alibaba Cloud account has access permissions for all APIs. This poses a high security threat. We recommend that you create and use a RAM user for API calls or routine O&M. The RAM user must have the required permissions to manage Simple Log Service resources. For more information, see Create a RAM user and grant permissions.

You must have the project name, region, and Logstore name for the logs that you want to query. For more information, see Manage projects and Manage Logstores.

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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:MergeShard

update

*LogStore

acs:log:{#regionId}:{#accountId}:project/{#ProjectName}/logstore/{#LogstoreName}

log:TLSVersion

None

Request syntax

POST /logstores/{logstore}/shards/{shard}?action=merge HTTP/1.1

Request parameters

Parameter	Type	Required	Description	Example
project	string	Yes	The project name.	ali-test-project
logstore	string	Yes	The Logstore name.	ali-test-logstore
shard	integer	Yes	The shard ID.	3

Response elements

Element	Type	Description	Example
	array	The data structure of the shard.
	shard	An array that consists of three shard elements. The first element is the shard after the merge. The other two elements are the shards before the merge.

Examples

Success response

JSON format

[ { "shardID": 0, "status": "readwrite", "inclusiveBeginKey": "00000000000000000000000000000000", "exclusiveEndKey": "8000000000000000000000000000000", "serverIp": "203.0.113.10", "createTime": 1524222931 } ]

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.