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:QPS limits

Last Updated:Jan 15, 2024

Simple Application Server limits the queries per second (QPS) of an API operation for a single user or all users. If the number of requests that you initiate to call an API operation reaches the specified upper limit, throttling is triggered, and your business may be interrupted. This topic describes the QPS limits on Simple Application Server API operations.

Terms

Term

Description

QPS limit for a single user

QPS limit for a single user refers to the total number of calls that a single Alibaba Cloud account and the RAM users and RAM roles within the Alibaba Cloud account can make to an API operation per second.

For example, the QPS limit for a single user for the CreateInstances API operation is 10 calls per minute. This indicates that a single Alibaba Cloud account and the RAM users and RAM roles within the Alibaba Cloud account can make a total number of 10 calls to the API operation per minute. If the upper limit is exceeded, throttling is triggered.

QPS limit for all users

QPS limit for all users refers to the total number of calls that all Alibaba Cloud accounts and all RAM users and RAM roles within the Alibaba Cloud accounts can make to an API operation per second.

For example, the QPS limit for all users for the CreateInstances API operation is 500 calls per second. This indicates that all Alibaba Cloud accounts and all RAM users and RAM roles within the Alibaba Cloud accounts can make a total number of 500 calls to the API operation per second. If the upper limit is exceeded, throttling is triggered.

Instances

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

CreateInstances

10

500

StartInstance

10

500

StopInstance

10

500

RebootInstance

10

500

UpdateInstanceAttribute

10

500

UpgradeInstance

10

500

ListInstances

10

500

ResetSystem

10

500

RenewInstance

10

500

ListInstancePlansModification

10

500

ListInstancesTrafficPackages

10

500

Firewalls

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

CreateFirewallRule

10

500

ListFirewallRules

10

500

DeleteFirewallRule

10

500

Snapshots

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

CreateSnapshot

10

500

ListSnapshots

10

500

DeleteSnapshot

10

500

Disks

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

ListDisks

10

500

ResetDisk

10

500

Custom images

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

CreateCustomImage

10

500

DeleteCustomImage

10

500

ModifyImageShareStatus

10

500

Other resources

API operation

QPS limit for a single user (calls/minute)

QPS limit for all users (calls/second)

ListRegions

10

500

ListPlans

10

500

ListImages

10

500