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Transaction Processing by Andreas Reuter, Jim Gray

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Glossary

1-safe system pair.

A system pair configuration in which the client is sent the commit response as soon as the primary has committed the transaction. It risks lost transactions.

2-safe system pair.

A system pair configuration in which the client is not sent the commit response until the backup of the system pair has acknowledged the transaction commit or the backup has been declared down. It prevents lost transactions. See also very safe system pair.

2PC.

A common abbreviation for two-phase commit.

2PL.

A common abbreviation for two-phase transaction locking.

Abort.

Terminating a transaction and undoing all its actions.

Aborted.

Said of a transaction, action, or object version if its parent transaction has aborted. See also active ...

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