Concurrency control in nested transactions with enhanced lock modes for KBMSs

Rezende, Fernando de Ferreira; Härder, Theo

doi:10.1007/bfb0049157

Cited by 8 publications

(2 citation statements)

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“…The model of nested transactions we assume makes maximum parallelism in a transaction hierarchy possible, allowing for parent-child as well as sibling parallelism (as is the case in Camelot [6,7], Clouds [8,9], Eden [10,11], LOCUS [12,13], KRISYS [4,14] etc.) 4 .…”

Section: Lock Managermentioning

confidence: 99%

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Transaction Identifiers in Nested Transactions: Implementation Schemes and Performance

Rezende¹

1997

The Computer Journal

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In this paper, we address a speci"c topic within the context of nested transaction implementation, namely, the assignment of identi"ers to transactions. We discuss the most important information such identi"ers should carry. We do this based on an analysis of the main requirements the components of a general transaction processing system pose on the identi"ers. Thereafter, we present some schemes for the assignment of transaction identi"ers and discuss their pros and cons with regard to the requirements presented. Finally, we compare one of our schemes to a conventional one by considering the most common operations that are performed with the identi"ers. Lastly, we show the performance measurements we have obtained.

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Section: Lock Managermentioning

confidence: 99%

“…Nested transactions have been implemented in many systems (Argus [21][22][23], Camelot [6,7], Clouds [8,9], Eden [10,11], LOCUS [12,13], KRISYS [4,14], PRIMA [19] etc.). Unfortunately, very little has been published on the strategies employed by those systems for assigning identi"ers (exceptions are [7,20]).…”

Section: Related Workmentioning

confidence: 99%