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Is the schedule S1 cascadeless and recoverable? Justify your answer. Draw the precedence graph of schedule S1 Is S1 conflict-serializable? Explain briefly. If S1 is conflict-serializable, write down all equivalent serial schedules.

Is the schedule S1 cascadeless and recoverable? Justify your answer. Draw the precedence graph of schedule S1 Is S1 conflict-serializable? Explain briefly. If S1 is conflict-serializable, write down all equivalent serial schedules.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider the schedule S1 consists of three transactions T1, T2, T3 as the following:

 

Answer the following question:

  1. Is the schedule S1 cascadeless and recoverable? Justify your answer.
  2. Draw the precedence graph of schedule S1
  3. Is S1 conflict-serializable? Explain briefly. If S1 is conflict-serializable, write down all equivalent serial schedules.

 

S1 T1 T2 T3 R(A) R(B) W(B) R(B) R(C) commit R(D) commit R(D) Commit
Transcribed Image Text:S1 T1 T2 T3 R(A) R(B) W(B) R(B) R(C) commit R(D) commit R(D) Commit
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