Labs 10 - Recovery algorithm with logical undo. =============================================== Exercises ========= (1) [Ex. 16.20 from textbook] Consider the following log. Explain what would happen during recovery when the system crashes (a) before, (b) after the operation abort log recort is written for operation O1. (2) Consider the following log. Write the log records resulting from aborting transaction T1. (3) Consider the following log. What would happen during the recovery if the system crashes at the end of the log? And what would happen if the system crashes again while recovering from the first crash, just before writing the abort log for T1?