Viewing profile — compumike

I don’t see any other impact-narrowing criteria. The default kubelet `syncFrequency` is 1 minute (per Pod). (There can be additional event-driven ones, but this is a floor.) Back o…

It does seem like a serious tripping point. I took a quick look at "containedctx" and it seems like for this case, it would almost be backwards: it would flag the (not-memory-leaki…

What kind of health checks? In my case, the kubelet process was staying alive and responsive to queries, I believe due to: # cat /proc/$(pgrep kubelet)/oom_score_adj -999 (from OOM…

Thanks. I know there's a `go vet` tool that's run as part of Kubernetes CI, and one of its checks is: lostcancel: check cancel func returned by context.WithCancel is called I'm not…

Author here! If you're running a Kubernetes cluster, I recommend you check `kubectl version` and see if you're running "Server Version: v1.36.[0,1,2]". If so, you may want to use t…

Here are some N-year rolling total inflation charts to put this datapoint in a longer-term perspective: https://totalrealreturns.com/inflation . Zooming out always smooths the nois…

> Redis (and memcache) are memory caches and should be treated like that If you haven't come across Kvrocks yet, it may be worth a look: https://github.com/apache/kvrocks https://k…

Re: "page for all 500s": there's a world of difference between "page me with a critical alert at 3am" and "notify me on Monday morning when my normal workday starts". At the extrem…

You can cheaply and readably give a lot of clues to both agents and humans with some assertions at the start of a method: raise ArgumentError.new("...") unless ... which can includ…

Check out this map: https://api.phillymesh.net/map for live data from the Philadelphia area. The edges drawn are between nodes that have been able to hear each other in the last 24…

It can be dangerous to backfeed (which is why you're supposed to have an interlock for a generator inlet, ensuring utility power is disconnected). But: 1. These grid tie inverters …

Just wait until you see "kW/h" :) But I think plug-in / balcony solar will be pretty cool. And I think there's a path to inexpensive, larger, safer grid-tie inverters which never b…

> Schematics also help explain your circuit because the idioms of drawing them communicate intent. I think this is a key point. One could imagine three layers: (1) NETLIST: a list …

The big thing that articles like this miss completely is that we are no longer in the brief HTTP/1.0 era (1996) where every request is a new TCP connection (and therefore possibly …

It's very local here. I'm in the suburbs of Philadelphia, in one of the highest income counties in the state, two blocks from a major hospital, one block from a suburban downtown. …

> If something goes wrong, like the pipeline triggering certbot goes wrong, I won't have time to fix this. So I'd be at a two day renewal with a 4 day "debugging" window. I think a…

100%, I've run into this too. I wrote some minimal scripts in Bash, Python, Ruby, Node.js (JavaScript), Go, and Powershell to send a request and alert if the expiration is less tha…

Thought you might find this story interesting, concerning the Total Real Returns website which originally launched on HN a while ago. https://news.ycombinator.com/item?id=32081943 …

Lots of people are speculating that the price spike is AI related. But it might be more mundane: I'd bet that a good chunk of the apparently sudden demand spike could be last month…

There's a tradeoff and the assumption here (which I think is solid) is that there's more benefit from avoiding a supply chain attack by blindly (by default) using a dependency cool…

I appreciate that, thank you! :)

Could always just use a status page that updates itself. For my side project Total Real Returns [1], if you scroll down and look at the page footer, I have a live status/uptime wid…

Not sure if it’s a fit for what you’re looking for, but maybe https://ultimateelectronicsbook.com/ (maybe more theoretical than practical). I’ve heard good things about “Practical …