On 2010/10/12 8:46, Carlos Mennens wrote:
Just wondering how you guys feel about NoSQL and I just wanted to share the following article... http://www.linuxjournal.com/article/10770 Looking to read your feedback and / or opinions.
Seems a nice article. I like it. :) I think "NoSQL is a new implementation built with old technologies". Computing paradigm (and the hype) is repeatable. I know there are several trade-offs on making decisions of technology design, such as "Traditional RDBMS", "In-Memory Datatabase", "Key-Value Store" or something like that. A few years ago, I heard that Michael Stonebraker said "There is no new (theoretical) invention around the database technology. The key is integration of existing technologies". I agree with that. At that time, he was working for the C-store. Anyway, NoSQL is grown as a kind of storage, not a database to process business transactions (As the article mentioned, early MySQL users knew an importance of web-scale storage). However, when NoSQL process more critical transactions or critical user data, it needs to be ACID-compliant, and needs to have several technologies around traditional RDBMSes. For example, Cassandra is now having its write-ahead-logging. So, from my viewpoint, NoSQL is a subset of traditional database technologies, and I agree with that it would deliver values in some use cases, because there are several trade-offs and overheads on existing technologies in such use cases. However, NoSQL is still lacking important features and/or properties to process business transactions, and there are only few sites having needs for true Facebook-size scalability. Thanks, -- NAGAYASU Satoshi <satoshi.nagayasu@xxxxxxxxx> -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
