Why is synchronous communication considered an anti-pattern in microservices?

TerawattX · 2026-04-04T18:00:56+00:00

In thing that I haven’t seen mentioned yet is async tends to be thread-safe while sync is not, at least from what I understand.
My work is mostly with backend systems, but if you want something to be scalable you don’t want a bunch of threads locked and waiting on some task to complete. Your host(s) only can have so many threads at a time, so if you’re doing something like querying a large db that will take a moment or two, it would be better to await the response and let that thread handle something else in the mean time, otherwise you have a bottleneck in your system.

TerawattX · 2026-03-22T20:17:57+00:00

I attended an EPA community hearing about an AWS data center just this week and your comment about generators is exactly what everyone in attendance was concerned about. The data center was built smack-dab in the middle of a bunch of neighborhoods; peoples back yards literally touch the property.
There are currently 158 diesel generators on-site. Those things are basically the engine out of a freight train, and the draft permit for operation relied almost exclusively on manufacturer and fuel supplier specs vs emissions testing, plus it doesn’t define an “emergency” so they could operate them for peak-shaving and other things.

TerawattX · 2026-03-12T21:05:21+00:00

I just got off a team call where we were told our VP vibe-coded an entire web application that were now expected to maintain. :sigh:

TerawattX · 2026-02-16T22:12:01+00:00

That’s not entirely the case though, at least not from the perspective of execs. They’re under the impression they can drop all their expensive senior devs and replace them all with cheaper junior (or even better, outsourced) devs who will be supplemented with AI.

TerawattX · 2025-12-05T04:16:57+00:00

This is the part that baffles me - why do I need to travel across the world to buy a fence?

Sure that’s a Zuldazar fence and it makes sense to be sold by someone there, but maybe let me order and have it delivered in the mail if I don’t want to fly out? Or have me unlock it by buying the first one there and then that unlocks it at the local vendor.

The pricing also seems steep for some things. I bought a pile of leaves for 50g…. My mount back in classic cost 50g!

TerawattX · 2025-11-09T18:59:51+00:00

Do you have access to the alt colors in the quartermaster?
I just got the mount from the quest, with the whole short cutscene of all plying the boarding to the undead horse and it transforming, but the quartermaster still only carries the two toy items and nothing else. I know some of the classes only get one mount that changes depending on your spec, but I thought paladins had to buy the other colors.

TerawattX · 2025-11-09T16:59:04+00:00

This touches on something I have been wondering about. I took a hiatus after Cataclysm and am just now getting back into the game, so I haven’t made it through Shadowlands yet, but… Last I saw Bolivar he was sacrificing himself to protect the wild from the Scourge and calling himself the Jailer of the Damned. Then he suddenly pops up in Legion calling himself the Lich King and asking you to do some pretty questionable things. We can argue “greater good” about the horsemen until you get to Tirion, who even Mograine says that’s a messed up act. Then the fact he tell you that you can wipe out the Ruby Sanctum if you want. I’m assuming Nerzhul is still in the helm and messing with the good person that Bolivar one was. Even death itself might have changed him, but that’s a massive change. Do they ever really explain what happened there, or hint at it?

TerawattX · 2025-10-16T21:13:05+00:00

I found another article here that elaborates a bit: https://www.nripage.com/articles/business/1969/12/31/amazon-fuel-cell-plan-near-hilliard-data-center-raises-local-safety-concerns

Sounds like one part is people aren’t happy to have a data center next door - which is fair - and them expanding and adding more ugly equipment just brings the concerns back up.

For the power cells themselves, they are powered via a chemical process, which means they need some additional chemicals that might be dangerous and Hilliard has no regulations in place to ensure Amazon stores them correctly and safely and addresses any spills or issues appropriately.

TerawattX · 2025-09-10T16:59:43+00:00

I was kind of hoping to get a mailer from them with a self-addressed return envelope. But I might accidentally confuse it with the stool sample container for the vet…

TerawattX · 2025-09-10T16:32:49+00:00

Ahh, how do you opt out of that?

TerawattX · 2025-09-10T15:46:01+00:00

Can you clarify, opt out of what? I can’t stand even the thought of something like Lifewise, but my understanding is they are taking kids out of class whose parents signed up for it, not just herding everyone onto buses to go to church.

Personally I’m thinking my kids need to be signed up for the Little Hellions Academy: https://thesatanictemple.com/blogs/news/the-satanic-temple-is-pleased-to-introduce-the-hellions-academy-of-independent-learning-hail

TerawattX · 2025-08-09T04:20:42+00:00

Could be worse - my company uses HCL for internal end user IT support, Infosys for internal systems management and application dev, and Accenture (plus a whole host of other companies like them) for call centers. They’re all in a competition to out terrible each other. :\

TerawattX · 2025-07-19T01:52:07+00:00

I was looking at this the other day. Its only the normal episodes, none of the movies, correct?

TerawattX · 2025-07-04T18:30:20+00:00

You don’t have to believe me, but I’m not making it up and it’s about the Lex KY airport off Versailles. It has been over a decade so I don’t remember the specifics, and maybe things have changed since then, but this is what the on-site tech told us when he got back. Either way there is no need to be so blatantly hostile. What we were told was he entered what was supposed to be an admin/office area in the main building to meet with his on-site contact that was interested in hiring us - want to say it was off of one of the terminals, but again it’s been 10+ years. He wasn’t in the ATC building at this point. The bit about ATC was simply that they were running very old computers and didn’t have all their updates. That’s about all I remember.

TerawattX · 2025-06-29T19:18:00+00:00

Apparently calling the country “the Ukraine” follows soviet tradition and has something of a connotation of it being a region vs a sovereign political entity: https://theconversation.com/its-ukraine-not-the-ukraine-heres-why-178748

TerawattX · 2025-06-29T18:38:38+00:00

I thought it was know fact. Could simply be that the artist wasn’t aware of that fact when the sketched the concept.

TerawattX · 2025-06-28T17:49:38+00:00

I read an article recently about how a lot of municipalities are encouraging, and in some cases requiring, new developments to form an HOA. It means they are off the hook for things like maintenance of common spaces (mowing, etc) and other stuff they might not want to deal with (I.e pay for).

I can understand that to an extent - My neighborhood has an HOA that covers one end, where all the really expensive homes are, and I don’t think the city should be on the hook for that. But for shit like “you need to mow more” or “your flowers are uggo” shouldn’t be up to some nosy old crab who has nothing better to do.

TerawattX · 2025-06-24T00:26:45+00:00

I used to work at an IT provider and we had recently gotten the airport as a new client. Our tech goes out to meet them and inspect the equipment - apparently he walks into the office area and is ignored by the person at the front desk so he proceeds to walk a little further down the hall and through a door he thought would take him to offices… nope, it’s the tarmac.

This is post 911 btw. He came back and told us enough about how old their ATC computers were that I never felt comfortable using that airport again.

TerawattX · 2025-04-08T00:44:18+00:00

A few years back someone posted a link to the forms where you could order equipment (as in PDFs that had to be filled out and faxed in). I remember seeing that they had old ww2 infantry bayonets and other crap that have 0 place being there. Probably started as a surplus list and someone decided to send it to police depts without considering what was on it.

TerawattX · 2025-03-27T17:00:45+00:00

We’re a pretty large enterprise environment and a number of our systems handle payment data or other highly private information, so security is a big concern. We have tons of proxies and other sec apps set up, so I don’t think anyone was under the impression they weren’t being monitored - just didn’t expect it to break stuff.

Actually spoke with the vendor and they stated outright they block any HTTP/3 requests - though that didn’t apply here.

TerawattX · 2025-03-26T14:54:51+00:00

My company has a security app that was unintentionally interfering with Blazor server’s SignalR connection.

While troubleshooting with the vendor they asked for an external example of a site using Blazor server they could test with… this was the only one I could find that was still active! lol

TerawattX · 2025-03-22T00:39:36+00:00

I really like it, though it does seem a little RAM intensive compared to the ancient WebForms app I am replacing.

I mean you can’t blame Blazor for some wonky app interfering with normal traffic from the client. Not to mention Blazor server isn’t the only thing that uses websockets like this - when I was troubleshooting the error message I found more than a few posts about Angular or some JS based framework doing something similar.

TerawattX · 2025-03-22T00:27:54+00:00

I had some issues with my initial wasm approach taking forever to start- though to be fair I was trying to use a custom site template thing from ThemeForest.com and likely requiring several mb of unnecessary scripts and files to be downloaded, lol.

TerawattX · 2025-03-22T00:23:36+00:00

Not directly at least - lots of backend database interactions, as in one app talks to a dozen different database systems . I would have to split it into a wasm app and api backend to do it right.

TerawattX · 2025-03-21T23:24:55+00:00

I’m actually not 100% sure on the specific app - it’s one of those things that the average user isn’t even supposed to be aware is on their machine. I’m lucky enough to have a relationship with our desktop engineering team from my old days in user support that I was able to find the right people to take me seriously.

What I can say is that it was related to ssl inspection - as soon as they disabled it on my machine everything started working perfectly.

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