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Distributed Database Systems, 1st Edition by Chhanda Ray
book

Distributed Database Systems, 1st Edition by Chhanda Ray

by Chhanda Ray
May 2024
Intermediate to advanced content levelIntermediate to advanced
325 pages
12h 2m
English
Pearson India
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
Distributed Concurrency Control
135
C1, C2, and C3 instead of maintaining one queue for each transaction manager at each site in the
distributed system. The timestamp scheduler will choose an operation of a transaction, with the
smallest timestamp value, for execution until there is at least one operation in each class C1, C2 or
C3 to which the transaction belongs.
8.6.3 Multi-version TO Algorithm
Multi-version TO algorithm is another timestamp-based protocol that reduces restart overhead of
transactions. In multi-version TO algorithm, the updates of data items do not modify the database,
but each write operation creates a new version of a ...
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