Hacker News: jpablo

New comment by jpablo in "Getting arrested in Japan"

jpablo — Sat, 09 May 2026 23:29:30 +0000

Darn. I don't know if I have been living in the wrong places but I never see drug-addicted homeless people in my western country at night.

New comment by jpablo in "Migrating from DigitalOcean to Hetzner"

jpablo — Sat, 18 Apr 2026 18:57:31 +0000

If you want a consistent backup that you can use to setup a replica you need to block writes while the backup is taken, take the backup while the database is shutdown OR use xtrabackup.

New comment by jpablo in "Migrating from DigitalOcean to Hetzner"

jpablo — Sat, 18 Apr 2026 17:52:29 +0000

The "making it catch up" is the tricky part. You need an initial backup for that. xtrabackup can take that backup "hot" without blocking read/writes. mysqldumper will block writes for whatever time that initial backup takes, for 2TB of data that's going to be hours.

Once you have that initial back up you can set your replica and make it catch up , then you switch. I choose to take the few seconds of downtime doing the switch because for my use case that was acceptable.

New comment by jpablo in "Migrating from DigitalOcean to Hetzner"

jpablo — Sat, 18 Apr 2026 16:52:23 +0000

  If you’re migrating a large MySQL database and you’re not 
  using mydumper/myloader, you’re doing it the hard way.

If you aren't using xtrabackup you are doing it wrong. I recently migrated a database with 2TB of data from 5.7 to 8.4 with about 15 seconds of down time. It wouldn't have been possible without xtrabackup. Mysqldumper requires a global write block, I wouldn't call blocking writes for hours a "zero downtime migration".

New comment by jpablo in "1D Chess"

jpablo — Fri, 10 Apr 2026 20:59:40 +0000

https://en.wikipedia.org/wiki/Stalemate#History_of_the_stale...

New comment by jpablo in "Build your own Dial-up ISP with a Raspberry Pi"

jpablo — Fri, 03 Apr 2026 23:35:14 +0000

So basically VOIP?

New comment by jpablo in "macOS code injection for fun and no profit (2024)"

jpablo — Sat, 07 Mar 2026 23:06:13 +0000

Yeah... that's way, way, way more complex than npm run dev

New comment by jpablo in "The unreasonable effectiveness of the Fourier transform"

jpablo — Fri, 09 Jan 2026 00:08:21 +0000

You will be surprised of The Unreasonable Effectiveness of opencv.calcOpticalFlowPyrLK

New comment by jpablo in "Show HN: I built a simple ambient sound app with no ads or subscriptions"

jpablo — Sun, 12 Oct 2025 19:18:12 +0000

The $100 is per year.

New comment by jpablo in "The Art of Multiprocessor Programming 2nd Edition Book Club"

jpablo — Sat, 02 Aug 2025 18:54:03 +0000

What's wrong with email?

New comment by jpablo in "Fixing the mechanics of my bullet chess"

jpablo — Sun, 15 Jun 2025 03:53:15 +0000

On a computer click click is a lot slower since you have to come to a complete pointer stop in your release. If your pointer is still moving in the release square most interfaces would detect that as some attempt to start a drag

New comment by jpablo in "Fixing the mechanics of my bullet chess"

jpablo — Sun, 15 Jun 2025 02:18:23 +0000

Not having the right click to cancel a drag would certainly be a huge difference

New comment by jpablo in "Fixing the mechanics of my bullet chess"

jpablo — Sun, 15 Jun 2025 00:28:57 +0000

This doesn’t make any sense. Click and click is slower than click+drag, it’s just obviously two extra movements (a full extra press and an extra release).

You can also drag and hover while waiting for the opponent move and release if the expected move shows up or right click to cancel the drag if not the expected move.

Also dragging and hovering over your target square is super useful to visualize your move and catch any last millisecond mistakes.

I do t think any of the top bullet/hyperbullet players does click and click. I think I have seen Magnus doing click and click in very old chess24 blitz videos but I’m not sure he did that in lichess playing bullet orin chesscom scc for example.

New comment by jpablo in "Liberating Wi-Fi on the ESP32 [video]"

jpablo — Sat, 28 Dec 2024 16:57:39 +0000

Everything is out in the open nowadays. Kids can start learning whatever they what an younger and younger ages.

A perfect example is chess. It used that a lot of knowledge was in books, often in foreign languages. Nowadays everything is out there in the open and additionally you can casually play games against top 100 opposition once you are okeish enough accelerating the development even more.

New comment by jpablo in "GPT-5 is behind schedule"

jpablo — Mon, 23 Dec 2024 15:03:10 +0000

They aren't blocking anything. They are just asking nicely not to be crawled. Given that AI companies haven't cared a single bit about ripping of other's peoples data I don't see why they would care now.

Lichess: Post-Mortem of Our Longest Downtime

jpablo — Wed, 18 Sep 2024 23:02:41 +0000

Article URL: https://lichess.org/@/Lichess/blog/post-mortem-of-our-longest-downtime/XAgG7jbd

Comments URL: https://news.ycombinator.com/item?id=41586579

Points: 176

# Comments: 53

New comment by jpablo in "British Museum gems for sale on eBay – how a theft was exposed"

jpablo — Mon, 27 May 2024 18:45:05 +0000

There's a spanish saying: Ladrón que roba a ladrón tiene 100 años de perdón.

A Thief that stoles from a Thief has 100 years of forgiveness.

New comment by jpablo in "BootLogo: Logo language in 508 bytes of x86 machine code"

jpablo — Tue, 19 Mar 2024 20:44:17 +0000

Is he related to the infamous Familia Toledo http://www.biyubi.com/?

New comment by jpablo in "Hans Reiser on ReiserFS deprecation in the Linux kernel"

jpablo — Thu, 18 Jan 2024 17:27:10 +0000

Others have commented on other parts of the letter but I find it very amusing he is basically stuck in a 2006 view of the tech world. Slashdot and HDD seek times immediately jumped out as things are as dead as they can be.

I wonder if he even knows about smartphones.

Update: As of right now Slashdot.Org hasn't posted this

New comment by jpablo in "Nintendo Network shutdown – The beginning of the end"

jpablo — Tue, 26 Dec 2023 00:47:15 +0000

no, nintendo ships complete playable games.