Database Reference
In-Depth Information
effort will be necessary to manage things that are more important and involved than
adding indexes and creating tables.
In this chapter, the following topics will be covered:
Adding new nodes to the Cassandra cluster
Replacing a node
Database backup and restoration
Monitoring tools
DBA SKILLS
As the database world changes, understanding the requisite skillsets for adminis-
trators is important. For proper and effective database administration, the follow-
ing basic skills are required:
The ability to design and model databases based on a provided logical
blueprint.
BA proficiency in managing database backup and restoration proced-
ures.
The ability to manage data integrity and its high availability.
The skill to ensure data security. Database administrators are respons-
ible for managing data security layers among various environments,
such as testing, staging, and production environments.
Adding Nodes to Cassandra Cluster
In Chapter 1 , we discussed configuring a three-node Cassandra cluster on a single ma-
chine. In this section we will first start the Cassandra cluster with two nodes and later
will add another node.
1.
First, for Random partitioner let's generate tokens for all three
nodes using the token-generator tool. This tool can be found under
$CASSANDRA_HOME/tools/bin folder.
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