January 2017
Intermediate to advanced
350 pages
7h 8m
English
Content preview from HBase High Performance CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Extracting data from Oracle
HBase doesn't allow direct interaction or a pipeline for data import from Oracle and MySQL to HBase. The basic concept remains the same: to first extract the data into flat / text files (ImportTsv format), transform the data into HFiles, and then load them into HBase by telling the region server where to find them.
Getting ready
Let's start with getting public data from the following URL:
http://databank.worldbank.org/data/download/WDI_csv.zip
This will have the following files:
WDI_Data.csvWDI_Country.csv(this is the file we will use)WDI_Series.csvWDI_CS_Notes.csvWDI_ST_Notes.csvWDI_Footnotes.csvWDI_Description.csv
We will be using this as data and nothing else; this is freely available on the aforementioned World Bank ...
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