Interesting articles about Ad-Exchange and RTB

The Ad-Exchange Model (Part I)
RTB Part I Followup
RTB Part II: Supply supply supply!
RTB Part III: Cookies & User Data!

Alternative to HBase + Map-Reduce

mongoDB

Combining the best features of document databases, key-value stores, and RDBMSes.

MongoDB (from "humongous") is a scalable, high-performance, open source, schema-free, document-oriented database. Written in C++, MongoDB features:

• Document-oriented storage (the simplicity and power of JSON-like data schemas)
• Dynamic queries
• Full index support, including secondary indexes, inner-objects, embedded arrays, geospatial
• Query profiling
• Fast, in-place updates
• Efficient storage of binary data large objects (e.g. photos and videos)
• Replication and fail-over support
• Auto-sharding for cloud-level scalability
• MapReduce for complex aggregation
• Commercial Support, Training, and Consulting

MongoDB bridges the gap between key-value stores (which are fast and highly scalable) and traditional RDBMS systems. Many companies are using MongoDB in production today.

Quick Links

• Downloads
• Follow @mongodb on Twitter
• Use Cases | Philosophy
• Hosting Center
• Drivers
• Source Code
• Blog | Articles
• Tutorial | Try MongoDB in the Browser
• Licensing | Example Snippets | BugDB (Jira)

Support

• Support forums: mongodb-user | more...
• IRC: irc.freenode.net/#mongodb
• Commercial support: 10gen
• Training: 10gen

LAMP on EC2 : Setting up Amazon Web Services

http://goo.gl/z1Zb

http://goo.gl/xhqB

Web performance in seven steps: Summary and Conclusions

Web performance in seven steps: Summary and Conclusions

Previous time I blogged about the last step of the seven steps, step 7: Share the responsibility for the whole chain, a non-technical but rather a communication and behavior thing which I found crucial for success. We now have reached the end of this series and I'll sum up the topics we've dealt with and draw some conclusions.

In this growing on line world with demanding customers it has become essential that services provided on the web are always available and always fast enough. This is often challenging to developers and operators: performance problems manifest themselves in various ways, like in frustration, loss of revenue and disruption of development; and just adding hardware is a doubtful solution.

The question is: how can we as developers and operators assure that our web site is always available and always fast? My answer is: you need the right approach. I present that approach: measure, don’t guess; seven steps to performance success. These seven steps are as follows:

• Step 1: Define performance requirements;
• Step 2: Execute a proof of concept;
• Step 3: Test representatively;
• Step 4: Test continuously;
• Step 5: Monitor and diagnose;
• Step 6: Tune based on evidence;
• Step 7: Share the responsibility for the whole chain.

This approach provides a pro-active way of working which my customers appreciate as valuable. It can actually be leveraged to assure high performance all the time, for virtually any on- and off-line application.

This blog series has been an interesting journey for me. Some time ago we presented our EJAPP Top 10 of performance problems. Now we have added this approach of seven steps to help assure your applications performance.

It has worked for us and our customers. How does this all work for you in practice? We’d like to hear your feedback.

Location based DB schema in mySQL

http://dev.mysql.com/tech-resources/articles/4.1/gis-with-mysql.html

http://dev.mysql.com/doc/refman/4.1/en/spatial-extensions.html

http://howto-use-mysql-spatial-ext.blogspot.com/

http://forge.mysql.com/wiki/GIS_Functions#Introduction

http://forums.mysql.com/read.php?23,40909,43079#msg-43079

OpenInviter

• Easy access to your visitors address book in all major email providers and social networks around the world.


• Completely painless and easy way of integrating in your website. It takes virtually not more than 5 minutes to have your own OpenInviter^TM up and running on your site.


• Constant updates so that you can sit back and relax and always have access to the latest ways to get your visitor's address book.


• WGET-ready! Yes, you read right! OpenInviter^TM is the only contacts importer supporting both WGET and cURL as methods of handling requests (since version 1.2) so now you can use it on ANY server you want without the hassle of installing libcurl!


• Real time access to the service statuses so you can know if there is an email provider that is not working right with OpenInviter^TM.

http://openinviter.com/faq.php

GO: Google Launches Its Own Programming Language

GO: Google Launches Its Own Programming Language

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