RDF System Management Manual

Network Transactions
HP NonStop RDF System Management Manual—524388-003
13-10
The Effects of Undoing Network Transactions
system \Y). Assume that network transactions originate on both \A and \B, and that
they update data on both \A and \B. Assume further that each system also executes
local, non-network, transactions.
More specifically, assume that system \A (the network master) executes the following:
1. T
10
(network transaction started on \A)
2. T
11
(non-network transaction)
3. T
11
commit
4. T
10
commit
5. T
12
(network transaction started on \A)
6. T
12
commit
7. T
13
(network transaction started on \B)
8. T
13
commit
9. T
14
(non-network transaction)
10. T
15
(network transaction started on \A)
11. T
14
commit
12. T
15
commit
At approximately the same time system \B executes the following:
1. T
10
(network transaction started on \A)
2. T
20
(non-network transaction)
3. T
12
(network transaction started on \A)
4. T
13
(network transaction started on \B)
5. T
21
(non-network transaction)
6. T
22
(non-network transaction)
7. T
36
(network transaction started on \C)
8. T
21
commit
9. T
22
commit
10. T
36
commit
11. T
20
commit
12. T
10
commit
13. T
13
commit
14. T
12
commit