Codetown ::: a software developer's community
Everyone likes a challenge. How about a contest? If you like to flex your muscle, why not join us here at Contest Town. You'll find some challenging contests to write code for. And, you may find some excellent prizes, as well. Come on in and show us
Members: 9
Latest Activity: Apr 13, 2010
Instant Runoff Voting (IRV) is a fascinating way to run an election. The basic idea is that voters rank the candidates and the votes for…Continue
Tags: Instant Runoff Voting, IRV, contest
Started by Michael Levin. Last reply by Dan Lackey Apr 5, 2010.
On President Obama’s first full day in office, he called for recommendations to make the Federal Government more transparent, participatory, and collaborative. Through the…Continue
Started by Michael Levin Apr 4, 2010.
Senegal is a land of magic and mystery. People there use their heads for recreation! How? Well, here's an example. The photo you see above is a game called Wari I got in Kaolack, Senegal. I went to…Continue
Started by Michael Levin. Last reply by Lamine Ba Feb 17, 2010.
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Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Check out the Codetown Jobs group.

Uber introduced a high-throughput financial ledger processing system designed to handle hot account write contention at scale. Using 250ms batching, Redis coordination, and optimistic atomic updates, the system supports 30+ updates per second per account while preserving consistency and auditability, reducing multi-hour processing pipelines to minutes in its distributed accounting infrastructure.
By Leela Kumili
To provide SRE as a service, a team built a center of excellence, introducing Federated SREs and roles like production manager and technical tribe lead. They created a culture of data-driven conversations where SLOs and SLAs were democratised. Surviving growing cognitive load meant continuously simplifying architecture and embedding sovereignty and resilience into platform design decisions.
By Ben Linders
The speakers discuss the architectural challenges of executing safe data deletion across distributed datastores. Balancing durability, availability & correctness, they explain how to orchestrate multi-system deletion propagation without impacting live traffic. They share lessons on controlling tombstone accumulation, building continuous audit loops, and gaining trust with a centralized platform.
By Vidhya Arvind, Shawn Liu
Architectural change cases extend architecture decision record (ADR) thinking by evaluating how decisions may evolve over time. Change cases expose hidden assumptions and help teams estimate the reversibility and cost of change.
By Pierre Pureur, Kurt Bittner
AWS disclosed that Resilient Network Graphs, a flat network architecture based on quasi-random graph theory, is now the default for most new data center builds. The design replaces fat-tree hierarchies with direct ToR-to-ToR mesh connections using passive optical ShuffleBoxes, cutting routers by 69%, boosting throughput by 33%, and reducing network power consumption by 40%.
By Steef-Jan Wiggers
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