The flow cleaning service consists of three units: detecting center, cleaning center, and centralized management center.
The detecting center monitors data traffic flowing into the ECS instance, and identifies abnormal traffic in a timely manner, such as DDoS attack.
When an abnormity is detected, the management center guides the cleaning center to clean suspicious traffic based on the traffic diversion policy. Malicious traffic is removed, while legitimate traffic is returned to the original instance.
This ensures only legitimate traffic can be forwarded to the target system.
Log on to the Alibaba Cloud console.
Click Anti-DDoS Basic under Security.
Find your server that is in the flow cleaning status, and click Cancel Cleaning.
Note: One account can manually cancel flow cleaning for three times in one day.