A benchmark for RDF-based metadata management in distributed long-term digital preservation

Subotic, Ivan and Rosenthaler, Lukas and Schuldt, Heiko. (2012) A benchmark for RDF-based metadata management in distributed long-term digital preservation. In: Proceedings of the 3rd International Workshop on Data Engineering Meets the Semantic Web (DESWEB), DESWEB 2012. Piscataway, pp. 11-16.

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Official URL: http://edoc.unibas.ch/dok/A6043847

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In a large variety of applications, the long-term, guaranteed availability of data is becoming increasingly important. Thus, long-term digital preservation systems have to be inherently distributed to allow content to be replicated. This affects both the preservation of the actual digital objects and their associated metadata. For the latter, RDF has become the prevalent data model. Ensuring data integrity and consistency requires periodic checks to timely detect inconsistencies, for instance due to (partial) hardware failures, and trigger repair actions. Hence, the access characteristics to metadata in longterm digital preservation significantly differs from metadata management in other types of applications. In addition, the increasing size of digital archives challenges the consistency checks of the associated metadata. In this paper, we introduce a novel benchmark for triple store-based metadata management that jointly takes into account the specific access patterns of long-term preservation systems: i.) complex periodic consistency checks, ii.) concurrent read  and write requests to the archive, and iii.) the actions to be taken on data to re-establish consistency if a violation has been detected. Furthermore, we present the results of this benchmark applied to our distributed long-term digital preservation system DISTARNET.
Faculties and Departments:05 Faculty of Science > Departement Mathematik und Informatik > Informatik > Datenbanken (Schuldt)
UniBasel Contributors:Schuldt, Heiko and Subotic, Ivan and Rosenthaler, Lukas
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Note:Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:13 Sep 2013 08:00
Deposited On:13 Sep 2013 07:58

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