Remember when CouchDB 1.0.1 had to be released days after the 1.0 release because of a serious data loss bug? This prompted Jeff Darcy to write two posts about How To Lose Data and How *NOT* To Lose Data, which are still worth a read even though things have died down considerably since then. It does well to display some of the challenges the new kids on the (DB) block have to deal with from a DB systems design & implementation perspective.