A Cornell University professor claims MongoDB’s fault tolerance system is “broken by design”. 10gen responds through its Technical Director, rejecting the claims.
San Francisco based Stripe has announced MoSQL, a tool for making reporting from MongoDB much easier via a live-replicating PostgreSQL database. MoSQL is based on MongoRiver, their companion product for monitoring MongoDB data updates in near-realtime.
Riak 1.3.0 RC was recently released, with improved IPv6 support and some interesting features that improve reliability – Active Anti-Entropy and Health Check.
At its heart, SQL is a domain specific language designed to allow non-professional programmers to query databases and write ad hock reports. When a company moves from a relational database to a NoSQL offering the need for ad hock reporting doesn’t go away, it just becomes harder. Simba’s ODBC drivers shift the power back into the hands of the users.
Couchbase Server 2.0 main features include flexible JSON data model, distributed indexing and querying, incremental map-reduce, and cross data center replication.
Inspired by Apache CouchDB, PouchDB (Portable CouchDB) is a small footprint database for web and especially mobile applications that need a browser-based storage solution that can be used offline. The database can be synchronized with CouchDB databases or other PouchDBs when the device comes back online.
Recently Couchbase published a comparison of Couchbase and CouchDB to denote the differences and simlarities between the two. This document addresses a common question: "What is the difference between CouchDB and Couchbase?", and what happened to Membase? InfoQ caught up with James Phillips, a Couchbase founder, to discuss the comparison and the merger of the two products Membase and CouchDB.
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.
Cloud service provider Tier 3 has released Iron Foundry, a .NET-friendly fork of VMware’s Cloud Foundry platform-as-a-service. Iron Foundry gives the sizeable number of .NET developers an open source alternative to Windows Azure and lets them participate in the increasingly popular Cloud Foundry ecosystem.
VMware is adding support for PostgreSQL to CloudFoundry, it's open source PAAS solution.
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.
This interview with Richard Hipp, creator of SQLite, unveils the details of UnQL, a new query language for JSON document databases. Hipp mentions UnQLite, an embedded document database he plans to create.
The 451 Group has published earlier this month the conclusions of a report detailing the growing set of options in the information management space. In the process they also clarified what they meant by "NewSQL".