Even if the system ensures correct execution of a transaction, this serves little purpose if the system subsequently crashes and, as a result, the system “forgets” about the transaction. Thus, a transaction’s actions must persist across crashes.
Even if the system ensures correct executionof a transaction, this serves little purpose ifthe system subsequently crashes and, as aresult, the system “forgets” about thetransaction. Thus, a transaction’s actionsmust persist across crashes.