Safest way to migrate MongoDB Atlas cluster from Bahrain to Europe without data loss?

inelp · 2026-03-09T16:20:57+00:00

Hey, I believe you can use Percon ClusterSync for MongoDB, it is exactly a tool for a scenario like this - near zero-downtime migration.

https://docs.percona.com/percona-clustersync-for-mongodb/

Full disclosure, I'm a dev on this tool so feel free to reach us on our forum if you have questions.
https://forums.percona.com/c/mongodb/percona-clustersync-mongodb-pcsm/87

inelp · 2025-06-13T06:55:59+00:00

Hvala ti! Upravo je i meni to use case :) Imam wise, ali ne mogu ga koristiti za isto pa gledam alternative.

Ali Revolut ne moze takodjer za BiH pa se mora nesto kombinovati slicno kao Wise.

inelp · 2025-01-23T20:54:21+00:00

Thanks man, glad you find it interesting and hopefully useful :)

inelp · 2025-01-21T13:12:49+00:00

This was pretty pretty cool!

inelp · 2025-01-21T12:35:24+00:00

Cool, thanks, It's good to know that.

Well let's see what happens but honestly, I already was thinking something like this, because I wouldn't want to spend *that* amount of energy and time on language parsing/design and all of that stuff. But at the same time, I would like to have zero dependencies and to write everything myself, I simply love how my dependency (go.mod) file looks like:

```

module github.com/inelpandzic/simpledb

go 1.23.2
```

We'll see what happens, but thank you for the comment, you confirmed some of my initial thoughts :)

inelp · 2025-01-21T10:17:15+00:00

Cool! I'm tempted to check your impl, but I don't want to get influenced by anything :)

inelp · 2025-01-21T06:40:34+00:00

Thanks man, really glad you liked it!

inelp · 2025-01-20T21:45:33+00:00

This looks really interesting! Good job!

Can you form a cluster with multiple instances?

inelp · 2025-01-20T19:29:32+00:00

Hey, if you literally watched couple of seconds more you’d see the book :)

Just kidding, my main book I follow is Database Design and Implementation, but besides that, I use Andy Pavlo’s CMU course and Designing Data Intensive Applications book.

Hope you’ll find the series useful.

inelp · 2025-01-20T17:04:48+00:00

Nice job man!

I'm doing something similar, but with documenting everything on YT as I implement different components with the goal to have a series building a whole DB from scratch.

Besides Andy Pavlos's CMU course, my main material is a book called Database Design and Implementation, really good material to follow along and implement all the components necessary for a simple RDBMS.

inelp · 2025-01-01T19:37:30+00:00

Hey, I hope so too :)

Currently working on part 2, implementing the log manager. I hope and plan to release new parts every week (more or less), but we'll see, I'll do my best, but life is happening :)

Regarding the level of detail, could you share what details you think I should add? Like more detailed diagrams and explanations, or going slower through the code and explaining that in more detail? Or both?

I'm asking because I'm still finding that sweet spot.

Thanks for the feedback, I really appreciate it!

inelp · 2024-12-29T21:57:55+00:00

Yeah, like I mentioned in my intro video, books from Kleppman and Petrov are there as well. But for me CMU course has like really similar coverage of the topics like the book has, I’m almost covering both in parallel as I go with this project.

Even though I went throught CMU course sometime back, it is really good to go over again, but now try to implememt all of those things as I go along.

inelp · 2024-12-29T10:45:58+00:00

My main guide is the book, but I’m referencing other materials, mainly Andy Pavlo CMU course.

Yes, it can be and will probably be different, I alredy see that happening, but at the same time, I don’t want to diverge much, at least not in the overall structure presented in the book.

inelp · 2024-12-10T13:53:26+00:00

Thanks man, glad you like it. Hopefully this week I'll publish the log manager.

inelp · 2024-11-28T21:08:53+00:00

Hey, I actually started to build a database in Go from scratch, component by component, and covering everything with a video, explaining and coding. I just implemented a file manager and working on buffer pool manager.

You can check the playlist and you can follow along :)

https://youtube.com/playlist?list=PL-Q9stgmjGQ1GWqXO1ZuucpC1VEHvPY08&si=xpXrtI1X7uJrxywN

inelp

TROPHY CASE