[vermon]

Seems like it's out of capacity:

    An error occurred (VcpuLimitExceeded) when calling the RunInstances operation: You have requested more vCPU capacity than your current vCPU limit of 64 allows for the instance bucket that the specified instance type belongs to. Please visit http://aws.amazon.com/contact-us/ec2-request to request an adjustment to this limit.

Maybe something like https://leaningtech.com/webvm-server-less-x86-virtual-machin... would be cheaper and more reliable for this kind of thing?

[fduran]

Yes, HN effect lol-sob.

Mitigation: reducing servers life time temporarily so more people can try.

[warent]

Usually I roll my eyes when someone posts their own website to HN and it crashes under load. But given the nature and complexity of yours I think there's room for understanding and patience :)

[fduran]

Thanks, I did some stress-testing and infra is scalable enough but I forgot about the AWS quotas, my bad. Quota increase requested and servers are killed off so hopefully "soon" the issue will go away.

[Nextgrid]

Scaling this service without breaking the bank could become its own "sad server" scenario.

I'd start by moving the test VMs to bare-metal servers running libvirt. You can get a 128GB RAM server for ~110 EUR and that should be able to run around 120 concurrent VMs assuming 1GB of RAM to each (CPU isn't a major issue in this case).