MongoDB 2.4 Released
Written by Kay Ewbank   
Thursday, 21 March 2013

The latest version of the MongoDB NoSQL database has simpler sharding alongside capped arrays, text search, and geospatial enhancements. A new commercial version has also been released.

 

The hash-based sharding is a new option designed to make it easier to create large-scale MongoDB systems. According to a post on the MongoDB blog:

“Using a hashed shard key allows users to get a good distribution of load and data in a simple manner, in cases where documents are accessed randomly through the key space, or if the access patterns may not be totally predictable.”

The addition of capped arrays will make it easier for you to maintain a fixed-length sorted array, so you can show top ranking items such as leaderboards and most viewed, emailed or purchased items. On a $push operation, users can now specify a $slice modifier, which trims the array to the last N items.

The geospatial features have been improved with the addition of GeoJSON support, a more accurate spherical model and polygon intersections. Elsewhere, a working set analyzer has been added to help with capacity planning on MongoDB clusters. The working set size analyzer tells you how many unique pages the server has needed in the last 15 minutes, so that you can track usage over time.

 

While the main MongoDB remains free of charge to use, 10gen has introduced a commercial version, MongoDB Enterprise, as part of a new MongoDB Enterprise subscription level. MongoDB Enterprise contains new monitoring and security features including Kerberos Authentication and Role-based Privileges with separate roles for server, database and cluster administration.


 

MongoDB is an open-source document database that provides a JSON data model with dynamic schemas, auto-sharding, built-in replication, and GridFS for large file storage. It has more than 4 million downloads.

More Information

MongoDB 2.4 Released

Mongdb.org

Download

Related Articles

Cash Injections for MongoDB 

MongoDB 2.2 Released

MongoDB in Action (book review)

 

To be informed about new articles on I Programmer, install the I Programmer Toolbar, subscribe to the RSS feed, follow us on, Twitter, Facebook, Google+ or Linkedin,  or sign up for our weekly newsletter.

 

raspberry pi books

 

Comments




or email your comment to: comments@i-programmer.info

 

Banner


IDX Gets Android Emulator & iOS Simulator
01/02/2024

Google has updated Project IDX, its browser-based development tool, adding an iOS Simulator and Android Emulator to the browser so developers can preview apps directly in IDX. The updated release also [ ... ]



Raspberry Pi Looks To IPO In London
31/01/2024

Raspberry Pi has been changing over the years and the latest upheaval is the proposed IPO. Now we learn that it is likely to be in London and as soon as possible.


More News

Last Updated ( Thursday, 21 March 2013 )