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Mastering Apache Cassandra 3.x - Third Edition
book

Mastering Apache Cassandra 3.x - Third Edition

by Aaron Ploetz, Tejaswi Malepati
October 2018
Beginner to intermediate content levelBeginner to intermediate
348 pages
10h
English
Packt Publishing
Content preview from Mastering Apache Cassandra 3.x - Third Edition

Altering a keyspace

Changing a keyspace to use a different RF or strategy is a simple matter of using the ALTER KEYSPACE command. Let's assume that we have created a keyspace called packt_test:

CREATE KEYSPACE packt_test WITH replication = {  'class': 'SimpleStrategy', 'replication_factor': '1'}AND durable_writes = true;

As it is preferable to use NetworkTopologyStrategy, we can alter that easily:

ALTER KEYSPACE packt_test  WITH replication = { 'class':'NetworkTopologyStrategy',  'datacenter1': '1'};

If, at some point, we want to add our second data center, that command would look like this:

ALTER KEYSPACE packt_test  WITH replication = { 'class': 'NetworkTopologyStrategy', 'datacenter1': '1', 'datacenter2': '1'};

If we added more nodes to both ...

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Publisher Resources

ISBN: 9781789131499Supplemental Content