July 2009
Intermediate to advanced
400 pages
16h 42m
English
Content preview from Principles of Transaction Processing, 2nd Edition
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Chapter 2
Transaction Processing Abstractions
2.1 Introduction
This chapter discusses five software abstractions that are used heavily in TP systems:
■ Transactions
■ Processes and threads
■ Remote procedure calls
■ Transaction context, sessions, and other techniques for managing shared state
■ Caching, resource pooling, partitioning, and replication
These abstractions involve both the application programming interface and mechanisms to support it. Understanding them is fundamental to developing and engineering a TP system.
We start with the transaction abstraction, where we focus on the semantics of the programming model. We present pseudocode that illustrates how a transaction is delimited and thus establishes the relationship between a program ...
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