From http://glinden.blogspot.com/2008/05/yahoo-builds-two-petabyte-postgresql.html http://glinden.blogspot.com/2008/05/yahoo-builds-two-petabyt... : Yahoo buil

From http://glinden.blogspot.com/2008/05/yahoo-builds-two-petabyte-postgresql.html http://glinden.blogspot.com/2008/05/yahoo-builds-two-petabyt... : Yahoo builds two petabyte PostgreSQL database James Hamilton writes about Yahoo's "over 2 petabyte repository of user click stream and context data with an update rate for 24 billion events per day". It apparently is built on top of a modified version of PostgreSQL and runs on about 1k machines. In his post, James speculates on the details of the internals. Very interesting.