Publication

Elastic Transactions

Rachid Guerraoui, Vincent Gramoli, Pascal Felber
2009
Conference Papers

Résumé

This paper presents elastic transactions, a variant of the transactional model. Upon conflict detection, an elastic transaction might drop what it did so far within a separate transaction that immediately commits, and initiate a new transaction which might itself be elastic. Elastic transactions are a complementary alternative to traditional transactions, particularly appealing when implementing search structures. Elastic transactions can be safely composed with normal ones, but significantly improve performance if used instead.

Source officielle

https://infoscience.epfl.ch/entities/publication/03c34fce-3ecc-417c-8d1f-b35afb8ed93e

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Rachid Guerraoui, Vincent Gramoli, Pascal Felber
2009
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/03c34fce-3ecc-417c-8d1f-b35afb8ed93e

À propos de ce résultat

Concepts associés (12)

Database transaction

A database transaction symbolizes a unit of work, performed within a database management system (or similar system) against a database, that is treated in a coherent and reliable way independent of other transactions. A transaction generally represents any change in a database. Transactions in a database environment have two main purposes: To provide reliable units of work that allow correct recovery from failures and keep a database consistent even in cases of system failure.

Distributed transaction

A distributed transaction is a database transaction in which two or more network hosts are involved. Usually, hosts provide transactional resources, while the transaction manager is responsible for creating and managing a global transaction that encompasses all operations against such resources. Distributed transactions, as any other transactions, must have all four ACID (atomicity, consistency, isolation, durability) properties, where atomicity guarantees all-or-nothing outcomes for the unit of work (operations bundle).

Commitment ordering

Commitment ordering (CO) is a class of interoperable serializability techniques in concurrency control of databases, transaction processing, and related applications. It allows optimistic (non-blocking) implementations. With the proliferation of multi-core processors, CO has also been increasingly utilized in concurrent programming, transactional memory, and software transactional memory (STM) to achieve serializability optimistically. CO is also the name of the resulting transaction schedule (history) property, defined in 1988 with the name dynamic atomicity.

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