As others seem to have noticed, copying from GS sometimes stalls down to 2-3 MB/s. This happened to me also, yesterday.
I wouldn’t have thought about it, but I got anti-ddos notification from OVH. This happened in VPS in Gravelines. This happened exactly when the transfer stalled, around 2GB mark. It can’t be a conincidence.
I thought it would be atleast something to notify Google that this is one problem with current GS implementation. Maybe OVH finds a way around it, or the GS protocol be adjusted to accommodate antti-DDos firewalls.
I wouldn’t have thought about it, but I got anti-ddos notification from OVH
Does it mean that OVH is receiving a DDoS from GCP? (Copy from GCS to OVH VPS ?)
If so, the problem is on the OVH side because they’re the ones applying a limit on the bandwidth.
Here are some solutions:
Ask OVH to whitelist the IP to allow high load. Probably not going to happen, especially if your VPS is using a shared resource. Maybe you can configure it yourself? I’m not familiar with OVH so I can’t tell
Ask OVH or check in their documentation the appropriate throughput and adapt your code to do so
You may be able to limit the incoming traffic on your VPS so you stay under the radar too