December 2017
Intermediate to advanced
468 pages
13h 12m
English
This pattern provides a way to use existing or traditional existing data warehouses along with big data storage (such as Hadoop). It can act as a façade for the enterprise data warehouses and business intelligence tools.
In the façade pattern, the data from the different data sources get aggregated into HDFS before any transformation, or even before loading to the traditional existing data warehouses:

The façade pattern allows structured data storage even after being ingested to HDFS in the form of structured storage in an RDBMS, or in NoSQL databases, or in a memory cache. The façade pattern ensures reduced data size, as only ...
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