The API operations provided by Enterprise Distributed Application Service (EDAS) are deployed in POP API. When you use an SDK provided by EDAS to call an API operation, an error message appears, which indicates that the API call is throttled. This error message is returned because the throttling threshold for the API operation is exceeded. In this case, you must adjust the API request frequency based on the throttling rules.
When you use Java SDK or Python SDK provided by EDAS to call an API operation, an error message appears, which indicates that the API call is throttled. Example:
2018-11-29 10:48:59,909, ERROR com.aliyuncs.exceptions.ClientException: Throttling. User: Request was denied due to user flow control.
The API operations provided by EDAS are deployed in POP API. The error message appears because the throttling threshold for the API operation is exceeded. This throttling protection mechanism ensures the stability of backend API operations.
If such an error log exists, you must understand the throttling rules that apply to the API operation. The request frequency of each API operation varies. Therefore, each API operation applies different throttling rules. You must adjust the request frequency after throttling is triggered.
Throttling rules for common API operations
|Number||API operation||Request URL||Throttling threshold||Special throttling|
|1||DeployApplication||/pop/v5/changeorder/co_deploy_app||40 times per minute||No|
|2||GetChangeOrderInfo||/pop/v5/changeorder/change_order_info||100 times per minute||Yes|
|3||ListApplication||/pop/v5/app/app_list||60 times per minute||Yes|
|4||ListDeployGroup||/pop/v5/app/deploy_group_list||200 times per minute||No|
|5||QueryApplicationStatus||/pop/v5/app/app_status||100 times per minute||No|
|6||ScaleOutApplication||/pop/v5/changeorder/co_scale_out||40 times per minute||No|
|7||ListScaleOutEcu||/pop/v5/resource/scale_out_ecu_list||20 times per minute||No|
|8||InsertApplication||/pop/v5/changeorder/co_create_app||40 times per minute||No|
|9||QueryMonitorInfo||/pop/v5/monitor/queryMonitorInfo||60 times per minute||Yes|
|10||GetApplication||/pop/v5/app/app_info||40 times per minute||Yes|