DudeTM

• du rable de coupled

Drawbacks of Transaction Systems

• undo logging
  • log the old values and update atomically
  • doesn't work for dynamic transactions (since prior knowledge of what changes are to be done)
• redo logging
  • requires intercepting all memory reads

Design

• decoupled the performance of the transactions
  1. perform
  2. persist
  3. reproduce
• uses shadow memory / redo log

I'm taking a sociology class so this topic comes up frequently