NDLI: Parallel SECONDO:scalable query processing in the cloud for non-standard applications

Parallel SECONDO:scalable query processing in the cloud for non-standard applications

Content Provider	ACM Digital Library
Author	Lu, Jiamin Güting, Ralf Hartmut
Abstract	Secondo is an extensible DBMS prototype. It emphasizes the handling of spatial and moving objects data and provides sophisticated data models and query processing over such data, offering specialized types and operations. More generally, there is a wealth of techniques available, for example, (i) construction of a road network from OpenStreetMap data and map matching of trajectories against this network, (ii) symbolic trajectories with pattern matching and indexing techniques, (iii) spatio-temporal pattern queries, (iv) similarity search on M-trees, (v) combining raster data with trajectory data, to name but a few. Parallel Secondo combines Secondo with Hadoop to achieve scalable query processing in the cloud. In this architecture, there are many Secondo system instances on different computers of a network, called slaves, and one which is designated as the master. A user can issue at the master a query in the usual style of querying Secondo. This query may contain hadoopMap and hadoopReduce operators which take as parameters arbitrary Secondo queries designated for parallel execution. These are translated into Hadoop MapReduce jobs which are then, controlled by Hadoop, executed on all available Secondo slaves. The parallelization technique via Hadoop and Secondo as such are completely orthogonal. That means that everything Secondo can do, now or in the future, Parallel Secondo can do as well at large scale. Like Secondo, Parallel Secondo is freely available for download. In addition, plenty auxiliary tools are provided to deploy and manage the system at different scales, from a single computer to a local cluster, or the cloud.
Starting Page	3
Ending Page	10
Page Count	8
File Format	PDF
ISSN	19467729
DOI	10.1145/2744700.2744701
Journal	SIGSPATIAL Special (SIGSPACIAL)
Volume Number	6
Issue Number	2
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-06-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article

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