rcmnd

MnesiaSoftware

1 company

KlarnaCompany
Swedish buy-now-pay-later and payments company
mixed

In part 1 , you’ve read about the journey of moving from Mnesia to Postgres with zero downtime. In this blog post we will focus on database isolation levels and how we managed to make Postgres behave like Mnesia

Klarna's move of its KRED system from Mnesia to Postgres

engineering.klarna.com ↗·2025-03-12Wrong?

Every entry is a verbatim quote and a link to the public post it came from. Nothing is paraphrased. If it is not on record somewhere public, it is not here.

The verdict is what they actually said: loved and liked are explicit; recommended means they told others to get it; uses means they only say they use it; read is a book on their public shelf with no verdict; mixed and disliked are kept too.

A dashed affiliate link, sponsored or their own label means the post disclosed a relationship. It is shown, never hidden.

The small bar beside a date shows how dated a recommendation is for its kind of thing.

The bar shows how dated a recommendation is, for its kind of thing. Full and green is recent. It drains, and turns amber and then grey, as the post gets older.

What counts as old depends on the thing. A laptop praised four years ago has been replaced twice; a book loved twenty years ago is probably still loved. The bar is empty after about:

A striped bar means the post carries no date and the date shown is an estimate. No date at all, no bar.