Artur Costa on foojay.io - Friends of OpenJDK

The Cost of Not Knowing MongoDB - Part 3: (appV6R0 to appV6R4)

Tue, 11 Nov 2025 19:31:10 +0000

Welcome to the third and final part of the series “The Cost of Not Knowing MongoDB.” Building upon the foundational optimizations explored in Part 1 and Part 2 , this article delves into advanced MongoDB design patterns that can dramatically transform application performance.

In Part 1 , we improved application performance by concatenating fields, changing data types, and shortening field names. In Part 2 , we implemented the Bucket Pattern and Computed Pattern and optimized the aggregation pipeline to achieve even better performance.

The Pitfall of Increasing Read Capacity by Reading From Secondary Nodes in a MongoDB Replica Set

Thu, 30 Oct 2025 15:23:31 +0000

The scenario

Imagine we are responsible for managing the MongoDB cluster that supports our country’s national financial payment system, similar toPix in Brazil. Our application was designed to be read-heavy, with one write operation for every 20 read operations.

WithBlack Friday approaching, a critical period for our national financial payment system, we have been entrusted with the crucial task of creating a scaling plan for our cluster to handle the increased demand during this shopping spree. Given that our system is read-heavy, we are exploring ways to enhance the read performance and capacity of our cluster.

The Cost of Not Knowing MongoDB - Part 2

Tue, 21 Oct 2025 14:26:51 +0000

This is the second part of the series “The Cost of Not Knowing MongoDB,” where we go through many ways we can model our MongoDB schemas for the same application and have different performances. In the first part of the series, we concatenated fields, changed data types, and short-handed field names to improve the application performance. In this second part, as discussed in the issues and improvement of appV4 , the performance gains will be achieved by analyzing the application behavior and how it stores and reads its data, leading us to the use of the Bucket Pattern and the Computed Pattern .

The Cost of Not Knowing MongoDB (Part 1)

Tue, 14 Oct 2025 13:43:42 +0000

The primary focus of this series is to show how much performance you can gain, and as a consequence, the cost you can save when using MongoDB properly, following the best practices, studying your application needs, and using it to model your data.

To show these possible gains, a dummy application will be presented, and many possible implementations of it using MongoDB will be developed and load-tested. There will be implementations for all levels of MongoDB knowledge: beginner, intermediate, senior, and mind-blowing (🤯) .