May 2024
Intermediate to advanced
325 pages
12h 2m
English
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
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Distributed Deadlock Management
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145
timestamp values are unique throughout the distributed system and do not require that clocks at
different sites are synchronized precisely. Based on timestamp values, there are two different tech-
niques for deadlock prevention: Wait-die and Wound-Wait.
Wait-die is a non-preemptive deadlock prevention technique based on timestamp values of
transactions and is implemented in the following way. In this technique, when one transaction is
about to block and is waiting for a lock on a data item that is already locked by another transaction,
timestamp values of both the transactions are checked to give priority ...
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