Updating and Scheduling of Streaming Web Services in Data WarehousesJournal: International Journal of Science and Research (IJSR) (Vol.2, No. 9)
Publication Date: 2013-09-15
Authors : V. Ramdas; K. Vinaykumar;
Page : 41-45
Keywords : Online Updating; Data warehousing; Mining; Scheduling; Web Services;
We discuss revise scheduling with streaming files warehouses, which blend the features of traditional files warehouses and also data supply systems. In our setting, external sources push append-only files streams into your warehouse with many inter introduction times. While classic data warehouses are normally refreshed during downtimes, streaming warehouses usually are updated while new files arrive. We design the streaming warehouse revise problem as a scheduling trouble, where jobs correspond to processes which load brand-new data in to tables, and whoever objective is usually to minimize files staleness with time. We next propose the scheduling framework that grips the troubles encountered with a stream manufacturing facility: view hierarchies and also priorities, files consistency, lack of ability to pre-empt changes, heterogeneity connected with update jobs brought on by different inter introduction times and also data quantities among various sources, and also transient clog. A story feature in our framework will be that arranging decisions tend not to depend with properties connected with update jobs such as deadlines, but instead on the effects of revise jobs with data staleness.
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