Engineering#009
Engineering5 min
The five resilience patterns that stop a cascading failure
How one slow secondary dependency takes down the whole system in ninety seconds, and the five patterns that prevent it.
resiliencearchitecturesre
Software engineering and applied AI
What happens when the code leaves the laptop and meets a real user.
I am Gabriel Dias. I work on payment infrastructure and production AI systems at Woovi. Here I write about the boring decisions nobody covers in tutorials: the ones that show up at 3am, with users waiting.
- published articles
- 9
- categories
- 2
- writing code since
- 2016
Library
Latest writing
Engineering#008
Engineering5 min
Saga and outbox: a transaction without a distributed transaction
You need to debit one account and credit another, and they live in different databases. The two patterns that solve it in practice, and what to avoid.
distributed-systemsmicroservicesbackend
Engineering#007
Engineering5 min
CAP, PACELC and the consistency models
CAP is the most quoted and most badly stated theorem in distributed computing. This article fixes the statement and shows the vocabulary you actually use day to day.
distributed-systemsarchitecturedatabases
Engineering#006
Engineering6 min
Sharding: a decision guide
Sharding is the most irreversible decision in a data system. This is the guide to deciding whether you need it and, if you do, how to pick the key.
shardingdatabasesarchitecture
Engineering#005
Engineering5 min
Indexes, EXPLAIN and the slow query
How an index works on the inside, why column order decides everything, and how to read an execution plan to know what to do.
postgresdatabasesperformance
Talk to me
Questions about the article? Message me on WhatsApp
No form and no mailing list. If you disagree with something I wrote, or want to tell me how you solved it, the conversation goes straight to me.