The Scalable Thread

Why are Event-Driven Systems Hard?

Understanding the Core Challenges of Asynchronous Architectures

Sep 14

89

4

5

August 2025

Why "What Happened First?" Is One of the Hardest Questions in Large-Scale Systems

Understanding Why Exact Ordering of Events is Hard in Large Scale Systems

Aug 30

33

6

4

How to Keep Services Running During Failures?

Strategies for Graceful Degradation in Large Scale Distributed Systems

Aug 16

48

5

How to Optimize Performance with Cache Warming?

Optimizing Performance and User Experience in Large-Scale Distributed Systems

Aug 1

25

4

June 2025

How Tool Calling Works in LLMs

Understanding the Internals of Tool Calling in Large Language Models

Jun 20

32

1

2

How Feature Flags Enable Safer, Faster, and Controlled Rollouts

Understanding Effective Rollouts Using Feature Flags in Distributed Systems

Jun 7

22

4

May 2025

How to Handle Concurrency with Optimistic Locking?

Understanding How Distributed Systems Avoid Race Conditions

May 17

47

2

7

How to Improve Performance of Your Database?

Strategies for Scaling Databases in Distributed Systems

May 9

86

10

How Failover Works in Single Leader Databases

Strategies for Handling Failover in Single Leader Architectures

May 2

17

1

3

April 2025

How to Build Idempotent APIs?

Understanding Idempotency in Distributed Systems

Apr 25

80

8

What is Key-Based vs Range-Based Partitioning in Databases?

Understanding Data Partitioning Strategies in Distributed Systems

Apr 18

22

3

How Indexes Work in Partitioned Databases

Understanding Local and Global Secondary Indexing for Large-Scale Systems

Apr 11

52

2

11