Rancher supports Docker Machine-based provisioning, which makes it easy to create Docker hosts on cloud providers, or inside your own data center. In this tutorial, you’ll use the the cloud provider driver that’s built into Rancher to create Droplets from the Rancher UI and provision them to run Docker compute hosts which you can monitor, scale, and use to deploy Docker containers.
Memcached lets you handle sessions more quickly for a faster user experience. This tutorial shows you how to share sessions across multiple cloud servers so users maintain a single session across multiple load-balanced servers.
In this installation of our the cloud provider Scaling-Rails series, we are going to find out how to build a PostgreSQL server from scratch to use as the database persistence layer for Ruby-on-Rails web-applications. Continuing, we are going to see how to connect our Rails application servers with the database by making the necessary configuration changes.
An introduction to basic load balancing concepts and terminology, using HAProxy, with some examples.
Replication allows your databases to distribute load among more than one computer. While MariaDB natively supports master-slave replication, which allows you to offload read operations to a a number of slave servers, this master-master replication, which allows you to write data to any node, is not implemented. With a Galera cluster, MariaDB incorporates some patches that allow for master-master replication. We will be setting this up using Ubuntu 12.04 servers.
Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом. При хранении любых важных данных очень рискованно иметь единую точку отказа. Хотя многие базы данных и другие программы позволяют…
How to migrate your existing MySQL database off of your application server to scale your environment. Because every application has its own configuration quirks, with regards to database connections and interactions, we will demonstrate the migration process with WordPress but you can adapt this guide to any other application that uses MySQL as its database.
Drupal is one of the most popular free open-source content management systems. Varnish helps with scaling on a software level, by adding additional software that can help with the bottlenecks that arise from a growing number of simultaneous users. Even the simplest Varnish configuration can make your site snappy in a matter of minutes.
Web applications are often architected with three distinct tiers: the presentation layer, which is what the user sees, the application layer, which provides the business logic of the application, and the data layer which stores the application’s data. In this tutorial, you will deploy a Rails app in a three-tier configuration by installing a unique set of software on three separate servers, configuring each server and their components to communicate and function securely and effectively.
Kubernetes is a container management system meant to be deployed on Docker-capable clustered environments. In this guide, we will discuss some of the basic concepts that Kubernetes introduces. We will discuss some of the design decisions and what makes this different from other cluster-related technologies.
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