InfoQ Homepage NoSQL Content on InfoQ
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Apache Hadoop 1.0.0 Supports Kerberos Authentication, Apache HBase and RESTful API to HDFS
After six years of gestation, Big data framework Apache Hadoop 1.0.0 was recently released. Core features in the release include Kerberos Authentication, support for Apache HBase and RESTful API to HDFS. InfoQ spoke with Arun Murthy, VP of Apache Hadoop, about the new release.
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SpringSource Releases Spring Data Redis 1.0.0
SpringSource has recently released Spring Data Redis, an abstraction over the existing Java Redis libraries that offers a unified API and easier Java Object serialization for Spring based applications.
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InfoQ Issues Call for Articles
InfoQ is announcing a call for articles and is encouraging practitioners and domain experts to submit feature-length (2,000 to 3,000 word) papers that are timely, educational and practical. Topics of interest include cloud architecture and development, Java, Agile, NoSQL, big data analytics, HTML 5 and mobile development. Author guidelines are now also available.
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Damien Katz Abandons Apache CouchDB, Continues with Couchbase Server
We interviewed Damien Katz who is leaving Apache CouchDB behind, moving further with Couchbase Server, and porting large portions of the code from Erlang to C/C++. We also picked up reactions from the community.
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Blog Sentiment Analysis Using NoSQL Techniques
Corporations are increasingly using social media to learn more about what their customers are saying about their products. This presents unique challenges as unstructured content needs analytic techniques to interpret the sentiment embodied in the blog posts. InfoQ caught up with Subramanian Kartik to learn more about the blog sentiment analysis project his team worked on.
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Riak NoSQL Database: Use Cases and Best Practices
Riak is a key-value based NoSQL database that can be used to store user session related data. Andy Gross from Basho Technologies recently spoke at QCon SF 2011 Conference about Riak use cases. InfoQ spoke with Andy and Mark Phillips from Basho team about Riak database features and best practices when using Riak.
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James Phillips on Moving from Relational to NoSQL Databases
James Phillips, co-founder of Couchbase, recently gave a presentation on the differences between a distributed document-oriented and relational data models and what the database developers need know to move from a relational to a NoSQL database. InfoQ caught up with James to talk about the advantages and limitations of document-oriented NoSQL databases.
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MongoGraph Brings Semantic Web Features to MongoDB Developers
MongoGraph from AllegroGraph brings semantic web features to MongoDB developers. They implemented a MongoDB interface to AllegroGraph database to give Javascript programmers both joins and the semantic web capabilities. InfoQ spoke with AllegoGraph CEO Jans Aasman about this new approach and how it helps the NoSQL developers.
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NoSQL OODB with Smalltalk-based Ruby VM: MagLev 1.0 Released
The MagLev project has released version 1.0 of their Ruby VM. The Ruby implementation is based on the GemStone/S Smalltalk VM which comes with GemStone's distributed cache, ACID transactions, and persistence system (OODB). InfoQ caught up with Monty Williams of the MagLev project to talk about where MagLev fits on the NoSQL spectrum, and much more.
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eBay readies next generation search built with Hadoop and HBase
eBay presented a keynote at Hadoop World, describing the architecture of its completely rebuilt search engine, Cassini, slated to go live in 2012. It indexes all the content and user metadata to produce better rankings and refreshes indexes hourly. It is built using Hadoop for hourly index updates and HBase to provide random access to item information.
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Big Data: Evolution or Revolution?
Recently Steve Jones, from Cap Gemini, questioned whether NoSQL/Big Data is the panacea that some vendors would have us believe. He suggests that in some cases in-memory RDBMS may well be the optimal solution and that approaches such as Map Reduce could be too difficult to understand for typical IT departments. He concludes with a suggestion some sometimes Big Data may be a Big Con.
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MongoDB’s Reliability Questioned
Recently there have been two fairly high profile field reports on MongoDB that show it in a very unfavorable light. The majority of the criticism centers on a combination of performance problems and data loss.
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Distributed Cache as a NoSQL Data Store?
NoSQL data stores offer alternative data storage options for non-relational data types like document based, object graphs, and key-value pairs. Can a distributed cache be used as a NoSQL store? Greg Luck from Ehcache wrote about the similarities between a distributed cache and a NoSQL data store. InfoQ caught up with him to talk about this use case and its advantages and limitations.
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Cassandra 1.0.0. Is Ready for the Enterprise
Apache has announced the release of Cassandra 1.0.0, the first major milestone of the distributed column-based data store coming with data compression and several performance improvements and optimizations.
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Does NoSQL have an impact on REST?
Statelessness has been a central principle of RESTful design and implementation. However, with the advent of NoSQL implementations, Ganesh Prasad wonders whether that is no longer true and suggests that REST+NoSQL offers a way to remove this restriction, providing stateful sessions, scalability and fault tolerance.