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Consider Six Transactions T1, T2, T3, T4, and T5 With

Question 12

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Consider six transactions T1, T2, T3, T4, and T5 with:
- T1 initiated at site S1 and spawning an agent at site S2,
- T2 initiated at site S3 and spawning an agent at site S1,
- T3 initiated at site S1 and spawning an agent at site S3,
- T4 initiated at site S2 and spawning an agent at site S3,
- T5 initiated at site S3.
The locking information for these transactions is shown in Table 1. Produce the local wait-for-graphs (WFGs) for each of the sites. What can you conclude from the local WFGs?
Consider six transactions T<sub>1</sub>, T<sub>2</sub>, T<sub>3</sub>, T<sub>4</sub>, and T<sub>5</sub> with: - T<sub>1</sub> initiated at site S<sub>1</sub> and spawning an agent at site S<sub>2</sub>, - T<sub>2</sub> initiated at site S<sub>3</sub> and spawning an agent at site S<sub>1</sub>, - T<sub>3</sub> initiated at site S<sub>1</sub> and spawning an agent at site S<sub>3</sub>, - T<sub>4</sub> initiated at site S<sub>2</sub> and spawning an agent at site S<sub>3</sub>, - T<sub>5</sub> initiated at site S<sub>3</sub>. The locking information for these transactions is shown in Table 1. Produce the local wait-for-graphs (WFGs) for each of the sites. What can you conclude from the local WFGs?

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