May 2011 Blog Posts (7)

Africa Mobilizes and Java 7 too!

Africa JUG Meeting May 2011

Africa is mobiizing to help communities all over gain useful software development skills. Today, we met to discuss conferences planned all over the continent in 2011. We also talked about Java 7. We discussed http://jcertif.com/ the Congo conference and largest software meetup in Africa. Max Bonbhel is the organizer and… Continue

Added by Michael Levin on May 26, 2011 at 9:00am — No Comments

People's Guide to Contracting

 

I've started a handbook called "The People's Guide to Contracting". It's a work in progress, so you can check here from time to time if you want to see it grow. Here's what I've written so far:

 …

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Added by Michael Levin on May 24, 2011 at 2:34pm — No Comments

Codetown is on Facebook

Visit Codetown on Facebook. Click here to get started!

Added by Michael Levin on May 20, 2011 at 2:38pm — No Comments

Notes from JCertif

JCertif 2010 was a superb event in Brazzaville, Congo. Read all about it here. JCertif 2011 is coming up in August. Will we see you…

Added by Michael Levin on May 20, 2011 at 2:00pm — No Comments

Office, Flash & JAVA w/Chrome browser, PDF Reader on a Virtual PC

Have any of you seen this:

 

"Now with ★ CHROME Browser and JAVA ★ support! Imagine having a computer inside your iPhone or iPad, with full-featured Office suite, copy and paste and a PC-class browser? Now you can! AlwaysOnPC is your own personal ‘virtual PC’ where can run FireFox or Chrome browsers with FLASH and JAVA (no full-motion and sound yet), a full…

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Added by Michael Levin on May 17, 2011 at 7:32am — No Comments

Drupal Case Study - Dahon Bikes

This article is a excellent case study of how a site was developed using Drupal to meet Dahon's usability and functionality requirements.

Added by Michael Levin on May 14, 2011 at 3:34am — No Comments

Open Source Bridge and Social Networks

Open Source Bridge is coming! And, it's in Portland, which is a huge bonus. I wrote about it here: http://www.jroller.com/Sandymountster/entry/enhancing_your_website_with_social in my blog.

 

I attended OSB's first conference and gave a talk on Web2.0.…

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Added by Michael Levin on May 11, 2011 at 8:01am — No Comments

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Happy 10th year, JCertif!

Notes

Welcome to Codetown!

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.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
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Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

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InfoQ Reading List

30+ Updates per Second per Account: Uber Scales Ledger Processing with Batching

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

How a Culture of Data-Driven Conversations Can Support Platform Engineering

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.

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By Vidhya Arvind, Shawn Liu

Article: Architectural Change Cases: A Practical Tool for Evolutionary Architectures

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 Replaces Fat-Tree Data Center Networks with Random Graph Theory, Cutting Routers by 69%

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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