[Cassandra Wiki] Update of "FrontPage" by JonathanEllis

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  Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store. Cassandra brings together the distributed systems technologies from [http://s3.amazonaws.com/AllThingsDistributed/sosp/amazon-dynamo-sosp2007.pdf Dynamo] and the data model from Google's [http://labs.google.com/papers/bigtable-osdi06.pdf BigTable]. Like Dynamo, Cassandra is [http://www.allthingsdistributed.com/2008/12/eventually_consistent.html eventually consistent]. Like !BigTable, Cassandra provides a !ColumnFamily-based data model richer than typical key/value systems.
  
  Cassandra was open sourced by Facebook in 2008, where it was designed by one of the authors of Amazon's Dynamo. In a lot of ways you can think of Cassandra as Dynamo 2.0.  Cassandra is in production use at Facebook but is still under heavy development.
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  == General Information ==
  
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   * [http://incubator.apache.org/thrift Thrift], used by Cassandra for client access.
  
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+ This wiki is powered by MoinMoin.  With the exception of a few immutable pages, anyone
+ can edit it. Try SyntaxReference if you need help on wiki markup, and
+ FindPage or SiteNavigation to search for existing pages before creating a
+ new one. If you aren't sure where to begin, checkout RecentChanges to see
+ what others have been working on, or RandomPage if you are feeling lucky.