copilot_spec.pdf (application/pdf Object)
Thursday, January 6th, 2011Example specs from Joel / copilot /
Archive for the 'design' Category
The Facebook Data Center FAQ (Page 3) « Data Center Knowledge
Friday, October 1st, 2010article about facebook infrastructure, the 3rd page contains links to different videos and presentations by facebook engineers
umbrUI – CSS3 checkbox + radio button
Thursday, September 30th, 2010cool CCS3 demo (currently works only on webkit-based browsers, i.e. Chrome and Safari)
[Flash Player P2P Propriotary P2P Media Delivery Protocol called ] RTMFP Overview
Wednesday, April 14th, 2010“secret of ChatRoulette”. Describes details of RTMFP protocol, that Flash Player (from v.10.1 and above ) uses for media delivery. Protocol is closed/proprietary, encrypted, UDP-based, uses “forward” servers to establish direct session between th…
Appendix F – Personal observations on the reliability of the Shuttle by R. P. Feynman
Wednesday, July 1st, 2009famous and somewhat forgotten so called “minority report” by Richard Feynman on the aftermath of Challenger Shuttle disaster in 1986 that determent that management culture of NASA to responsible for the disaster, and not some particular technical fa…
Analysis from the Bottom Up | The Data Model That Nearly Killed Me
Tuesday, April 28th, 2009tells about problems with IT in HealthCare and Obama’s electronic records plan from one person’s 1fst hand experience. Make user u read the comments. (allow 30-40 minutes )
[russian] Юзеры – Друзья. Какая связь? / Проектирование БД : Форум на SQL.RU || User – Friends relationship : Database design, forum SQL.ru
Friday, August 22nd, 2008design pattern for friends/users, i.e. how to organize user-friend relationship. patters suggest that you need to make 2 tables, i.e freindship and friendship:user
[russian] Как гарантировать наличие атрибута (циклическая зависимость) / Проектирование БД : Форум на SQL.RU | about cyclic references / database design
Monday, August 11th, 2008good discussion about cyclic references. Basically the main point is that if you have a question “how do I implement cyclic fererence?” — then there is something wrong, 99% that it is so because ur understaning of problem domain is wrong.
To BLOB or Not To BLOB: Large Object Storage in a Database or a Filesystem?
Tuesday, August 5th, 2008a paper from microsoft research comparing perfomance of 2 systems: metadata in db + files in fs vs. meatadata + files as blobs in db. Study uses MSSQL and NTFS. Datasets are in less than 1 GB size.
Cookies are for Closers » LinkedIn Architecture
Thursday, June 5th, 2008interesing notes about LinkedIn architecture (JAVA + MYSQL + ORACLE)