University of California, Berkeley
STAT 88
Q1 2 Phase Commit 4 Points Q1.1 Part 1 2 Points Q1.1.1 Suppose that you are a Coordinator node, and you're participating in a transaction with 7 Participants. How many YES votes do you need to COMMIT? 7 Q1.1.2 You wake up. You have no memory of what happened. You're a Participant node, and you realize that you've just crashed. You lo
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Q1 2 Phase Commit 4 Points Q1.1 Part 1 2 Points Q1.1.1 Suppose that you are a Coordinator node, and you're participating in a transaction with 7 Participants. How many YES votes do you need to COMMIT? 7 Q1.1.2 You wake up. You have no memory of what happened. You're a Participant node, and you realize that you've just crashed. You look at your logs and see that the last record that appeared on transaction T1 is a PREPARE record. What do you do? Q1.2 Part 2 1 Point Q1.2.1 Suppose we have a Coordinator and 7 Participants. Under what conditions is it NEVER possible for the coordinator to ABORT a transaction?
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