April 2017
Beginner to intermediate
360 pages
9h 35m
English
Content preview from Learning Apache Cassandra - Second Edition
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Horizontal scalability
Horizontal scalability refers to the ability to expand the storage and processing capacity of a database by adding more servers to a database cluster. A traditional single-master database's storage capacity is limited by the capacity of the server that hosts the master instance. If the data set outgrows this capacity and a more powerful server isn't available, the data set must be shared among multiple independent database instances that know nothing of each other. Your application bears responsibility for knowing to which instance a given piece of data belongs.
Cassandra, on the other hand, is deployed as a cluster of instances that are all aware of each other. From the client application's standpoint, the cluster ...
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