April 2016
Beginner to intermediate
463 pages
18h 53m
English
Content preview from Big Data
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Big Data: Storage, Sharing, and Security
2.5.7.1 Data model
Accumulo is a tabular key-value store where each cell or entry in Accumulo is a key (or tuple)
mapped to a value. For each string labeled row and column, there is a unique value. Accumulo
is a row store database, which means that look-up of a row by its row ID can occur quickly.
This property is very beneficial for large databases where the amount of data stored does not
significantly increase the lookup time. By creating a suitable schema for a given dataset, this
model can be interpreted as semantic triples (subject, predicate, object), documents (mapping
of text documents to values),