https://pinboard.in/u:rahuldave/public/ recent bookmarks from rahuldave 2012-02-08T14:00:00+00:00 http://feedproxy.google.com/~r/oreilly/radar/atom/~3/QxTWbjEQrG8/nosql-non-relational-database.html rahuldaveHadapt (which focuses on analytics and bringing data warehousing into the 20-teens). In a few years, will we be looking at hybrid databases that take advantage of both relational and non-relational models? Quite possibly. Scientific data: Yet another direction comes from SciDB, a database project aimed at the largest scientific applications (particularly the Large Synoptic Survey Telescope). The storage model is based on multi-dimensional arrays. It is designed to scale to hundreds of petabytes of storage, collecting tens of terabytes per night. It's still in the relatively early stages. Hybrid architectures: NoSQL is really about architectural choice. And perhaps the biggest expression of architectural choice is a hybrid architecture: rather than using a single database technology, mixing and matching technologies to play to their strengths. I've seen a number of applications that use traditional relational databases for the portion of the data for which the relational model works well, and a non-relational database for the rest. For example, customer data could go into a relational database, linked to a non-relational database for unstructured data such as product reviews and recommendations. It's all about flexibility. A hybrid architecture may be the best way to integrate "social" features into more traditional ecommerce sites. These are only a few of the interesting ideas and projects that are floating around out there. Roughly a year ago, I counted a couple dozen non-relational database projects; I'm sure there are several times that number today. Don't hesitate to add notes about your own projects in the comments. In the end In a conversation with Eben Hewitt, author of Cassandra: The Definitive Guide, Eben summarized what you need to think about when architecting the back end of a data-driven system. They're the same issues software architects have been dealing with for years: you need to think about the whole ecosystems in which the application works; you need to consider your goals (Do you require high availability? Fault tolerance?); you need to consider support options; you need to isolate what will change over the life of the application, and separate that from what remains the same. The big difference is that now there are options; you don't have to choose the relational model. There are other options for building large databases that scale horizontally, are highly available, and can deliver great performance to users. And these options, the databases that make up the NoSQL movement, can often achieve these goals with greater flexibility and lower cost. It used to be said that nobody got fired for buying IBM. Then nobody got fired for buying Microsoft. Now, I suppose, nobody gets fired for buying Oracle. But just as the landscape changed for IBM and Microsoft, it's shifting again, and even Oracle has a NoSQL solution. Rather than relational databases being the default, we're moving into a world where developers are considering their architectural options, and deciding which products fit their application: how the databases fit into their programming model, whether they can scale in ways that make sense for the application, whether they have strong or relatively weak consistency requirements. For years, the relational default has kept developers from understanding their real back-end requirements. The NoSQL movement has given us the opportunity to explore what we really require from our databases, and to find out what we already knew: there is no one-size-fits-all solution. Strata 2012 — The 2012 Strata Conference, being held Feb. 28-March 1 in Santa Clara, Calif., will offer three full days of hands-on data training and information-rich sessions. Strata brings together the people, tools, and technologies you need to make data work. Save 20% on registration with the code RADAR20 Related: Oracle's NoSQL: A product and an acknowledgement What is Apache Hadoop? ]]> Data databases nonrelationaldatabase nosql planningforbigdata https://pinboard.in/u:rahuldave/b:1a7b041161f6/ 2010-04-25T22:36:16+00:00 http://simonwillison.net/2010/Apr/25/redis/ rahuldave brightonmarathon guardian marathon nosql redis running https://pinboard.in/u:rahuldave/b:59ab26e7ebb6/ 2010-03-17T10:00:00+00:00 http://radar.oreilly.com/2010/03/four-short-links-17-march-2010.html rahuldave databases events gov20 mysociety mysql nosql https://pinboard.in/u:rahuldave/b:74e6667b8519/ 2010-03-11T08:00:46+00:00 http://gigaom.com/2010/03/11/digg-cassandara/ rahuldave @Not_for_Syndication Cloud_Computing Infrastructure Om's_Posts Cassandara Digg MySQL NoSQL https://pinboard.in/u:rahuldave/b:990051d0167c/