Question: Can this project leverages all the nodes to pull the images parallely ?

[sadathknorket]

Let's say I have an heavy image 11GB , can this project help k8s to pull images across the node ?
If I have 3 nodes then each node contributing 3GB pull and sharing across the nodes so the time of pulling is also reduced by 3 times

[phillebaba]

The answer is it depends. If the image consists of multiple layers where each layer is 1GB for example, then Containerd would pull each layer in parallel. If there is a single layer however then it would be pulled from a single node. I do not know how beneficial it would be to on the Spegel side split the request, as the data would have to be written in order anyways to the response. I just merged #576 which would make this possible.

There is currently work going on in Containerd to split large requests into smaller requests, which would probably see a large performance increase together with Spegel. We now support range requests to Spegel will be compatible with this feature. I think our best option is to wait for this to be merged.

containerd/containerd#10177

[sadathknorket]

cool , thanks @phillebaba