Hadoop is a Java-based programming framework that supports the processing and storage of extremely large datasets on a cluster of inexpensive machines. It was the first major open source project in the big data playin...

Big data is a blanket term for the non-traditional strategies and technologies needed to gather, organize, process, and gather insights from large data sets. While the problem of working with data that exceeds the com...

Docker Swarm is the Docker-native solution for deploying a cluster of Docker hosts. You can use it to quickly deploy a cluster of Docker hosts running either on your local machine or on supported cloud platforms. Befo...

In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three CentOS 7 Droplets that will act as nodes in the cluster. MariaDB is an open sour...

The MySQL Cluster distributed database provides high availability and throughput for your MySQL database management system. This tutorial demonstrates how to install and configure a 3 node MySQL Cluster on Ubuntu 18.0...

Elasticsearch is a popular open source search server that is used for real-time distributed search and analysis of data. When used for anything other than development, Elasticsearch should be deployed across multiple ...

MySQL replication reliably mirrors the data and operations from one database to another. Conventional replication involves a primary server configured to accept database write operations. Secondary servers copy and ap...

In this tutorial, you'll learn how to install Hadoop in stand-alone mode on an Ubuntu 18.04 server. You'll also run an example MapReduce program to search for occurrences of a regular expression in text files.

ProxySQL is an open-source MySQL proxy server which can improve performance by distributing traffic among a pool of multiple database servers and also improve availability by automatically failing over to a standby if...

Redis is an open source key-value data store, using an in-memory storage model with optional disk writes for persistence. This guide shows how to create a Redis cluster. By the end of this guide, we will have set up t...

MySQL cluster is a software technology which provides high availability and throughput. In short, there is one or more management nodes which control the data nodes (where data is stored). After consulting with the ma...

When deciding which turkey setup to use for your dinner, there are many factors to consider, such as flavor and texture scalability, equipment availability and reliability, cost, and preparation and cooking duration. ...

Consul is a service discovery system that can be used to easily keep track of the health and availability of various parts of your infrastructure. In this guide, we will focus on getting a production-ready consul con...

Apache Hadoop is one of the earliest and most influential open-source tools for storing and processing the massive amount of readily-available digital data that has accumulated with the rise of the World Wide Web. It ...

Clustering adds high availability to your database at the hardware level by distributing changes to different servers. In the event that one of the instances fails, others are quickly available to continue serving...

In this tutorial, you will learn how to build a high availability Apache active-passive cluster. The web cluster will get addressed by its virtual IP address and will automatically fail over if a node fails.

Etcd is a globally distributed key-value store that forms the basis of the clustering technology in CoreOS. In this guide, we'll look at etcd and the etcdctl utility and discuss how they can be used to store and retr...

In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three Ubuntu 18.04 Droplets that will act as nodes in the cluster. MariaDB is an open ...

Etcd is a globally distributed key-value store that is available in CoreOS installations. By registering services in this store, related applications can adjust their configuration based on the values available. In ...