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Group By in MongoDB

by Jonathan Allen on  Feb 17, 2012 5

In response to demands for simpler data access, MongoDB is introducing the Aggregation Framework. This library uses a declarative pipe-line notation to support features such as SQL-like group by operations without having to write custom JavaScript routines.

Riak NoSQL Database: Use Cases and Best Practices

by Srini Penchikala on  Dec 23, 2011

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.

.NET Framework Support for Cloud Foundry Through Open Source Contribution From Tier 3

by Richard Seroter on  Dec 13, 2011 5

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.

MongoGraph Brings Semantic Web Features to MongoDB Developers

by Srini Penchikala on  Dec 03, 2011 1

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.

VMware's CloudFoundry Service Gains Support for PostgreSQL

by Kostis Kapelonis on  Nov 09, 2011 3

VMware is adding support for PostgreSQL to CloudFoundry, it's open source PAAS solution.

MongoDB’s Reliability Questioned

by Jonathan Allen on  Nov 07, 2011 7

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.

Interview: Richard Hipp on UnQL, a New Query Language for Document Databases

by Abel Avram on  Aug 04, 2011 1

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.

NoSQL, NewSQL and Beyond

by Jean-Jacques Dubray on  Apr 19, 2011 7

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".

MongoDB 1.8 Improves Reliability with Journaling

by David Cooksey on  Mar 25, 2011

MongoDB's new journaling feature improves reliability with write-ahead redo logs. Log entries are written before permanent storage is updated. When a server restarts after a crash outstanding journal files will be replayed before the server goes online. Other changes include sharding performance boosts, shell tab completion, and the addition of covering and sparse indexes.

Couchbase Announces Couchbase Server and an Advisory Board

by Abel Avram on  Mar 16, 2011

Couchbase, the company recently formed by merging Membase and CouchOne, has announced the availability of Couchbase Server in addition to Membase Server and Mobile Couchbase, along with the Advisory Board Members.

NoSQL Shake-Up. Membase and CouchOne merge into Couchbase

by Michael Hunger on  Feb 10, 2011

The shape of the NoSQL landscape is changing. The first big market aggregation took place with the merger of Membase Inc. with CouchOne into Couchbase. InfoQ spoke with James Phillip and Damien Katz about the benefits of the merger and future products.

JasperSoft 4 Released with Big Data Support

by Ron Bodkin on  Jan 28, 2011

JasperSoft announces reporting support for Hadoop and leading NoSQL databases.

Foursquare's MongoDB Outage

by Ron Bodkin on  Oct 15, 2010 9

Foursquare recently suffered a total site outage for eleven hours. The outage was caused by unexpected uneven growth in their MongoDB database that their monitoring didn't detect. The system outage was prolonged when an attempt to add a partition didn't work due to fragmentation, and required taking the database offline to compact it. Learn what happened and what responses are planned.

Four NoSQL Add-ons available for Heroku Users

by Michael Hunger on  Aug 24, 2010

The first four NoSQL datastores are available as Add-ons for the Heroku PaaS (platform-as-a-service) platform. Using the Add-on system that was introduced in October 2009, CouchDB from Cloudant, Membase from NorthScale, MongoDB from MongoHQ and Redis were made available for Heroku users.

CouchDB Comes to Android

by Abel Avram on  Aug 18, 2010

Couchio, the company founded by Damien Katz, creator of CouchDB, has announced the release of CouchDB SDK for Android, a mobile version of the document database that can be used offline.

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