PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When dealing with the scale that Twitter must handle, that fanout requires a large number of machines.To my knowledge based on articles posted here and around the net, Twitter was always RAM based and used MySQL only for point in time backup/archival.The difference is that Google and other entities plan and expect hardware to fail while some people design hoping nothing fails.The gas station quest
http://www.w3.org/ns/prov#wasQuotedFrom
  • highscalability.com