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ClickHouse scales beyond 100 petabytes of logs

news.ycombinator.com Unknown 2026-02-28 09:23:21

TLDR # Observability at scale: Our internal system grew from 19 PiB to 100 PB of uncompressed logs and from ~40 trillion to 500 trillion rows. Efficiency breakthrough: We absorbed a 20× surge in event volume using under 10% of the CPU previously needed. OTel pitfalls: The required parsing and marshalling of events in OpenTelemetry proved a bottleneck and didn’t scale - our custom pipeline addressed this. Introducing HyperDX: ClickHouse-native observability UI for seamless exploration, correlatio

Topics: clickhouse data loghouse query time
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How to free up your Mac's storage space - 3 easy ways

zdnet.com Jack Wallen 2026-03-06 03:00:18

June Wan/ZDNET Is your Mac running out of storage space? It happens -- especially if you've purchased a laptop with a smaller internal drive. When you find yourself in such a situation, what do you do? You could try clearing your browser data, but that won't always get back much space. Also: I rescued my dying 2017 MacBook Pro with Ubuntu and it works like a charm (mostly) Fortunately, there are things you can do to clear up considerable space. I've had instances where I've regained nearly 3

Topics: clear click folder space ve
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New to MacOS? 8 beginner tips and tricks to try first - and why

zdnet.com Jack Wallen 2026-03-11 03:30:12

Kerry Wan/ZDNET If you're considering a migration from Windows 11 to MacOS, you're in for a treat, as Apple's operating system is so much more user-friendly, stable, secure, and better designed than Microsoft's. When you first log into your new MacOS device, you should feel instantly at home. You'll instinctively understand how things work and won't have a problem getting up to speed. That doesn't mean, however, that there aren't a few quick tips you should know to make the experience even eas

Topics: add click command dock scrolling
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How to download your information from Facebook

engadget.com Unknown 2026-03-13 01:14:04

Once upon a time Facebook was filled with posts about the minutiae of your day and album after album of photos of just about every experience you had. By now, a lot of this media is likely hidden with the "only me" setting. But, regardless of how much you use Facebook these days, it's probably home to a lot of memories you want to hold on to — or at least have the opportunity to laugh at later. The good news is that you can download your Facebook information. You can access things such as your

Topics: click download facebook information want
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Fixing the mechanics of my bullet chess

news.ycombinator.com Jacob Brazeal 2026-03-12 23:40:46

I’ve been playing chess a long time now, and I’ve always been a good deal better (maybe a couple hundred ELO points) at blitz (3+0 or 5+0) than bullet (1+0). Well, I may have just fixed that. I changed how I move pieces this afternoon and have gained about 100 ELO already. When I play on a computer, I usually drag-and-drop pieces. But it turns out you can also move pieces by clicking first on your piece and then the target square. An analysis of my recent games indicates this shift saved me abou

Topics: bullet click drop seconds time
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