Sixth homework assignment due Tuesday May 27

1. Finish  exercise 13.1

a) first, without the checkpoint, fill in the recovery actions
if there is a crash right after the last action, using your answer
for figure 13.20 from the fifth homework.

b)Then do figure 13.20 WITH a lightweight checkpoint and fill in the
recovery actions if there is a crash right after the last action.

c) Fill in the chart on Figure 13.21 assuming that the checkpoint is
a lightweight checkpoint and assuming a system crash after the last
action


2.Using this exercise from the fifth homework, assume there is a crash
right after the last action and show the recovery actions

1. begin(t45)
2. write (p1, t45)
3. write (p2, t45)
4. begin (t46)
5. write (p2, t46)
6. write (p3, t45)
7. flush (p2)
8. write (p4, t45)
9. commit(t45)
10. begin (t47)
11. write (p1, t47)
12. write (p3, t47)
13. commit(t46)
14. flush (p3)
15. write (p2, t47)
16. flush (p2)
17. write (p4, t47)
18. commit(t47)