Viewing profile — rsanders

I'd say that medicine has been a net benefit to bettering the lives of those who have access to it. I'm biased, though - "drugs" have kept me alive and able for the last 30 years.

The gray market for peptides is pretty fascinating. I've spent the last month exploring it and interacting with some of the Chinese entrepreneurs involved, as well as the informal …

I'm pretty new to Rust so forgive me if I'm mistaken, but it seems to me that this crate doesn't require the use of tokio.

Which ones would you recommend?

Swapping in a multi-vendor world also implies standardization. It’s too early in this technology to standardize - that would stifle progress. Swap stations would also be far more e…

If CSV were being used just to exchange data with Excel, we probably wouldn't be using CSV. Many systems neither need nor know that ="01" should be treated as the string "01". If E…

That's a good point. But then you're not benchmarking C++ as a distinct language. So what would sufficiently distinguish a C++ program from a C program? Let's assume it's not just …

Ha! I picked up the original project (dosemu1) from an abandoned skeleton created by Matthias Lautner. I was a larval programmer and Linux was very much in its infancy. I really wa…

Can you expand on this: "AWS healthchecks each kubernetes node, but not your pods themselves". Are you talking about a keepalive connection to an unhealthy pod which is reused for …

Fewer features and fewer lines of code, and those LOC are written in Go, which is the language in which CockroachDB is written and which, presumably, for which their team and tooli…

It looks possible on EKS now. https://aws.amazon.com/about-aws/whats-new/2020/08/amazon-ek...

I wrote a little fork+spinloop program w/100 subprocesses and deployed it with a low (100m) CPU request and no limit. It's certainly driving CPU usage to nearly all 8 of the 8 core…

That may be more likely with limits, but it doesn’t require a limit. I’ve had lots of fun with that in Elasticsearch pods with no limit. And then you get to enjoy a nice cascading …

I should have said that it seems like the wrong fix to the problem. But I have since learned that limits can cause excessive throttling. And of course you may want your pods to be …

Can you explain how having a CPU limit set (at any level) has a negative effect on latency? That's an important factor to understand. The arguments for allowing containers to burst…

A container with a request but without a limit should be scheduled as Burstable, and it should only receive allocations in excess of its request when all other containers have had …

Excluding kernel bugs, CPU limits just provide an upper bound on burst capacity. That controls oversubscription of CPU on a node. As with any other kind of oversubscription of a re…

Removing CPU limits seems like a bad idea now that there's a kernel fix. But putting that aside... I don't understand why pods without CPU limits would cause unresponsive kubelets.…

This advice is confusing. CPU is a "compressible" resource -- pods don't get killed for (trying to) exceed it. Pods don't get evicted from nodes based on CPU starvation, so autosca…

Thanks! I didn't realize they were such distinct personalities.

I thought Red Hat announced last year they were abandoning Btrfs and enhancing XFS with similar features.

The support for multi-arch docker images is getting there, but there's not much of an ecosystem. Between Raspberry Pi, ARM instances on AWS, and ARM-based Macs, it ought to get to …

Retrying transactions is something every app ought to handle, but it's rare enough that most codebases I've seen just punt on it.

My last company used Terraform to manage Kubernetes. The main issue is that the TF Kubernetes provider supports a limited subset of K8S object types, and of fields within those K8S…