Posted By Rich Miller On April 27, 2007 @ 10:38 am In Technology | Comments Disabled
Hibernate Shards offers critical data clustering and support for horizontal partitioning (also called sharding) to Hibernate. Now, customers can keep their data in more than one relational database for whatever reason-too much data or to isolate certain datasets, for instance-without added complexity when building and managing applications. Hibernate Shards is designed to encapsulate and reduce the complexity of building applications that work with sharded datasets.Database sharding is also used by Digg, which outlined the details of its database management techniques in a presentation at the MySQL conference  in Santa Clara this week.
Sharding is similar to partitioning, says Ellis, but with several key differences. Sharding usually involves divvying up data onto different physical machines. Partitioning, in contrast, typically occurs on the same piece of hardware. And while MySQL does not natively allow sharding, it does support partitioned tables, federated tables and clusters.Sharding is a familiar term to those familiar with the infrastructure of online games , where popular MMORPGs like World of Warcraft segment their user base across multiple physical machines running instances of the game.
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URL to article: http://www.datacenterknowledge.com/archives/2007/04/27/database-sharding-helps-high-traffic-sites/
URLs in this post:
 manage a 12 gigabyte database: http://www.zdnet.com.au/insight/software/soa/How-Google-fixed-up-its-financial-management/0,139023769,339275077,00.htm
 data partitioning solution: http://www.infoq.com/news/2007/03/hibernate-shards
 Hibernate: http://www.hibernate.org/
 MySQL conference: http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9017778&source=rss_news50
 infrastructure of online games: http://www.datacenterknowledge.com/archives/2006/Sep/13/eve_online_30000_users_on_one_server_shard.html
 Rich Miller: http://www.datacenterknowledge.com/archives/author/richm/
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