How to Create Keyspace in Cassandra


Find out how to quickly create different kinds of keyspaces by following the examples in this tutorial. Once you create a keyspace, you can follow the instructions to learn how to alter or delete Cassandra keyspaces.

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How to Use the Linux Cat Command (With Examples)


The cat command, short for concatenate, is used to display the contents of one or more files, without having to open the file for editing. Learn how to use the cat command by following this article.

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How to Create, Drop, Alter, and Truncate Tables in Cassandra


The process for creating tables in Cassandra depends on what type of information you want to query. Follow the instructions in this guide to create a table in Cassandra using different types of keys, and to learn how to alter, drop, or truncate a…

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How to Set Docker Memory and CPU Usage Limit


Docker containers have unlimited access to RAM and CPU memory of the host. This is not the recommended practice as it can have a negative effect on container performance, as well as overburden the host. Learn how to configure your containers to work…

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How to Install Cassandra on Ubuntu


This tutorial covers everything you need to do in order to install Apache Cassandra on your Ubuntu machine. Follow the steps for installing Java and other dependencies before you run the Cassandra installation.

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How to Exit (Quit) Linux Vim/Vi editor


Vim text editor is one of the most widely used text editor. For that reason, you should learn some of the basic commands used in Vim. This article shows you how to exit a file, using a Vim command or shortcut key.

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How to Install Jenkins on Debian 10 (Buster)


If you are a software developer working on a Debian 10 Buster you may want to install Jenkins. Jenkins is software that automates different aspects of building, testing, delivering, and deploying of software applications.

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Cassandra Data Types: Built-in, Collection, & User-defined


Apache Cassandra, a NoSQL database, supports a variety of data types, including built-in, collection, and user-defined data types. This article explains how these differ from each other and help you decide when to use one over the other.

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NoSQL Database Types


NoSQL databases are an alternative to the traditional SQL databases. They are more flexible, scalable and functional for working with big data. There are different types of NoSQL databases. The most widely used types include: key-value databases,…

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Hadoop vs Spark – Detailed Comparison


This article explains how Hadoop and Spark are different in multiple categories. The tools are both free, but there is more than meets the eye. Learn how they compare working alone and if they can work together.

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