I’d say a solution will be highly dependent of what exactly you need to do. A solution to write thousands of records per second might be very different from incrementing a counter in the example you provided. More so, there could be no tables at all to handle such load. Consistency/availability requirements are also missing … Read more
Load balancer and reverse proxy have diffrent use case. Main use case of the load balancer is to distribute the load among node in a group of the server to manage the resource utilisation of each node One of the use cases of a reverse proxy is to hide server meta information (ip,port etc..) from … Read more
I strongly agree with @jpjacobs’s points. Lua is an excellent choice for embedding, unless there’s something very specific about lisp that you need (for instance, if your data maps particularly well to cons-cells). I’ve used lisp for many many years, BTW, and I quite like lisp syntax, but these days I’d generally pick Lua. While … Read more
Google Docs works via operational transformation. The basic idea of operational transformation is to transform (or adjust) the parameters of an editing operation according to the effects of previously executed concurrent operations so that the transformed operation can achieve the correct effect and maintain document consistency. Google produced a video about operational transformation for Google … Read more
API Gateway and Load Balancer are 2 different things. Load Balancer -> Its a software which works at protocol or socket level (eg. tcp, http, or port 3306 etc.) Its job is to balance the incoming traffic by distributing it to the destinations with various logics (eg. Round robin). I doesn’t offer features such as … Read more
I found this answer in Quora which has some very useful documents, videos and articles. Both answers are really good: http://www.quora.com/Job-Interviews/How-should-I-prepare-system-design-questions-for-Google-Facebook-Interview Also: How to Rock a Systems Design Interview How do I design an arbitrary system in an interview? System design – This is a very complete step-by-step guide/tutorial System Design Tutorials – A collection … Read more
Development Environment Well, you need a web server (depends on server-side architecture) like Apache or IIS to simulate the AJAX communication. Sometimes an editor for javascript is included in the editor of the server-side development language. There’s a interesting question about javascript IDEs: https://stackoverflow.com/questions/209126/good-javascript-ide-with-jquery-support Debugging Techniques & Profiling Use built-in browser debugging and profiling tools … Read more
Everyone who wants to be a PHP programmer, always takes only the first word and completely ignores the second. While “programming” is WAY more important than “PHP”, to be a PHP professional, one should be a programmer in the first place. So, I’d vote for the last one – reading books. Not on PHP, but … Read more