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I have created a port for FreeBSD 8 for MongoDB but I won't be using it for anything because of these things I found out about it: MongoDB has no , worth repeating: NO provisions for on-disk consistency. It doesn't fsync, it doesn't use algorithms that would ensure some degree of safety (e.g. journalling), nothing.
The arrow of time - A short time with MongoDB
Ilya Grigorik is a web engineer, an open-source and Ruby evangelist, a data geek, and a proverbial early adopter of all things digital. He is currently helping lead the social analytics efforts at Google. Earlier, Ilya was the founder and CTO of PostRank, a social analytics company, which was acquired by Google.
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Anti-RDBMS: A list of distributed key-value stores | High Scalab
Update 6: NoSQL : If Only it Was that Easy . BJ Clark lays down the law on which databases are scalable: Tokyo - NO, Redis - NO, Voldemort - YES, MongoDB - Not Yet, Cassandra - Probably, Amazon S3 - YES * 2, MySQL - NO. The real thing to point out is that if you are being held back from making something super awesome because you can’t choose a database, you are doing it wrong. Update 5: Exciting stuff happening in Japan at this Key-Value Storage meeting in Tokyo .
Following the NoSQL movement, I became a fan of key-value databases. Usually there’s nothing interesting to say as they work fine out-of-the-box. But in a project I was recently working on K-V store started to be a major bottleneck. I must note that my use case is pretty specific. In a K-V database I store about ten million records. The keys are pretty small, about 12 bytes on average.
Yet another Key-Value database « LShift Ltd.
What is Lux IO ? Lux IO is a yet another fast database manager. It supports B+-tree and Array index in either cluster or non-cluster index.
Lux IO - Yet Another Fast Database Manager
Coding Horror: Primary Keys: IDs versus GUIDs
March 19, 2007 Long-time readers of this blog know that I have an inordinate fondness for GUIDs . Each globally unique ID is like a beautiful snowflake: every one a unique item waiting to be born. Perhaps that's why I read with great interest recent accounts of people switching their database tables from traditional integer primary keys ...
Berners-Lee: Semantic Web's success lies in cooperation | C
Creating a Semantic Web will need organizations to think beyond their own industries, according to Tim Berners-Lee, director of the World Wide Web Consortium.Library of Free Data Model
This is called a surrogate key, but there is a 'gotcha' which can be deadly. It is all too easy to enter the same record twice. Therefore you must always be sure to enforce a unique constraint on the natural key. Luckily this is easy to do in Access which can be a good basis for clarifying your design and constraints. Why do I do this for free ?
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