2 of my articles have been published – yeah

February 4, 2010 by Stephan Schmidt

3 Comments

Two of my articles have been published (both German).

The first about “Scalability for startups” at the german startup website Deutsche-Startups and the second I co-authored with a friend about “SOFEA and SOUI web architectures” in the german JavaSPEKTRUM magazine.

Good start into 2010.

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About the author: Stephan Schmidt has more than 15 years of internet technology experience and 10 years experience in agile. He was head of development, consultant and CTO and is a speaker, author and blog writer. He specializes in organizing and optimizing software development helping companies by increasing productivity with lean software development and agile methodologies. Want to know more? All views are only his own.

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Marc

February 6th, 2010

Love the scalibility article. We had 3 lectures on scalability and this is basically exactly what we put together as our “lessons leadned”.

You might be interested in the (german) talks of our “scalibility” day. Some nice insights by a lot of interesting people (founder of studiVZ, CTO of xing, Account manager of Gomez Germany, …) –> http://days.mi.hdm-stuttgart.de/

stephan

February 6th, 2010

@Marc: Thanks.

This is basically what I’ve learned over the years.

Great link, I wished such days existed when I studied computer science (not far away, in Ulm ;-)

stephan

February 6th, 2010

@Marc: What I forgot in the article, because the insight, although obvious to others, came only lately to me (in this explicit form).

If your timeouts are larger than your arrival rate you’re toast.

Say your server has 500 threads. Your arrival rate is 10 users (threads)/sec then 500T/10T/sec = 50sec, or after 50 secs your threads are gone. If your timeout is 60sec then your toast.

Simple really (queue theory).

What people wrote somewhere else:

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2 of my articles have been published – yeah

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