You're reading from Mastering Apache Cassandra 3.x - Third Edition

Product typeBook

Published inOct 2018

Reading LevelIntermediate

PublisherPackt

ISBN-139781789131499

Edition3rd Edition

Languages

Java

Tools

Cassandra

Concepts

Database Programming

Authors (3):

Aaron Ploetz

Tejaswi Malepati

Nishant Neeraj

View More author details

Configuration

At this point, you could start your node with no further configuration. However, it is good to get into the habit of checking and adjusting the properties that are indicated as follows.

cassandra.yaml

It is usually a good idea to rename your cluster. Inside the conf/cassandra.yaml file, specify a new cluster_name property, overwriting the default Test Cluster:

cluster_name: 'PermanentWaves'

The num_tokens property default of 256 has proven to be too high for the newer, 3.x versions of Cassandra. Go ahead and set that to 24:

num_tokens: 24

To enable user security, change the authenticator and authorizer properties (from their defaults) to the following values:

authenticator: PasswordAuthenticator
authorizer: CassandraAuthorizer

Cassandra installs with all security disabled by default. Even if you are not concerned with security on your local system, it makes sense to enable it to get used to working with authentication and authorization from a development perspective.

By default, Cassandra will come up bound to localhost or 127.0.0.1. For your own local development machine, this is probably fine. However, if you want to build a multi-node cluster, you will want to bind to your machine's IP address. For this example, I will use 192.168.0.101. To configure the node to bind to this IP, adjust the listen_address and rpc_address properties:

listen_address: 192.168.0.101
rpc_address: 192.168.0.101

If you set listen_address and rpc_address, you'll also need to adjust your seed list (defaults to 127.0.0.1) as well:

seeds: 192.168.0.101

I will also adjust my endpoint_snitch property to use GossipingPropertyFileSnitch:

endpoint_snitch: GossipingPropertyFileSnitch

cassandra-rackdc.properties

In terms of NoSQL databases, Apache Cassandra handles multi-data center awareness better than any other. To configure this, each node must use GossipingPropertyFileSnitch (as previously mentioned in the preceding cassandra.yaml configuration process) and must have its local data center (and rack) settings defined. Therefore, I will set the dc and rack properties in the conf/cassandra-rackdc.properties file:

dc=ClockworkAngels
rack=R40

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Authors (3)

Aaron Ploetz

Aaron Ploetz is the NoSQL Engineering Lead for Target, where his DevOps team supports Cassandra, MongoDB, and Neo4j. He has been named a DataStax MVP for Apache Cassandra three times and has presented at multiple events, including the DataStax Summit and Data Day Texas. Aaron earned a BS in Management/Computer Systems from the University of Wisconsin-Whitewater, and an MS in Software Engineering from Regis University. He and his wife, Coriene, live with their three children in the Twin Cities area.
Read more about Aaron Ploetz

Tejaswi Malepati

Tejaswi Malepati is the Cassandra Tech Lead for Target. He has been instrumental in designing and building custom Cassandra integrations, including a web-based SQL interface and data validation frameworks between Oracle and Cassandra. Tejaswi earned a master's degree in computer science from the University of New Mexico, and a bachelor's degree in electronics and communication from Jawaharlal Nehru Technological University in India. He is passionate about identifying and analyzing data patterns in datasets using R, Python, Spark, Cassandra, and MySQL.
Read more about Tejaswi Malepati

Nishant Neeraj

Nishant Neeraj is an independent software developer with experience in developing and planning out architectures for massively scalable data storage and data processing systems. Over the years, he has helped to design and implement a wide variety of products and systems for companies, ranging from small start-ups to large multinational companies. Currently, he helps drive WealthEngine's core product to the next level by leveraging a variety of big data technologies.
Read more about Nishant Neeraj

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