Hi Mason, Honestly, I am beginner user in Cassandra. I rather confused to follow this database. I ask to the forum about the reason twitter.com to use Cassandra because I want to know the basic reason why we choose Cassandra instead of RDBMS or OODBMS. Twitter.com is only a study case.
Simple, for example I am a student and you are my lecturer. now I am asking you when we shall use Cassandra? In what situation, we better use Cassandra rather than RDBMS or OODBMS? Can I use Cassandra to develop Business Information System Software such as Accounting Information System?? I have already read the article on http://nosql.mypopescu.com/post/517791994/presentation-gary-dusbabek-rackspace-on-cassandra If I see the Cassandra's Data Model, it seem Cassandra can be applied in many software application, like RDBMS. It is true or not?? I also have a question related with the presentation on the website. What problems can’t it solve? - No flexible indices - No querying on non PK values - Not good for binary data (>64mb) unless you chunck - Row contents must fit in available memory Gary Dusbabek say: Row contents must fit in available memory. Honestly I do not understand the meaning from that statement. Thank you. Dir. On Sat, Apr 17, 2010 at 8:46 PM, Mason Hale <ma...@onespot.com> wrote: > On Saturday, April 17, 2010, dir dir > > I want to ask to the advance user or experience software developer in > this forum, > > why tweeter.com choose Cassandra? would you tell me the reason behind > > the decision of tweeter.com (from the feature and technical aspect)?? > Why tweeter.com did not > > use Oracle 11g or Db4o for example? (please omit the oracle 11g fee > license because > > we shall discuss from the feature and technical aspect). Thank you. > > > > > > For clarification, I believe the site you are referring to is > twitter.com (not tweeter.com). Only people at Twitter who made this > decision can really explain the rationale behind it. > > This link should shed some light on the subject: > http://engineering.twitter.com/2010/02/link-cassandra-at-twitter.html > > Mason > > > > > -- > > Mason Hale > http://www.onespot.com > direct +1 800.618.0768 ext 701 >
