A challenge in a pure version of a log-structured database is reclaiming space from the log when data is no longer needed. Sometimes you don't need to, as in Ve

A challenge in a pure version of a log-structured database is reclaiming space from the log when data is no longer needed. Sometimes you don't need to, as in Venti ( http://citeseer.ist.psu.edu/531029.html http://citeseer.ist.psu.edu/531029.html ).