Streaming replication is a popular method you can use to horizontally scale your relational databases. In this tutorial, you will set up physical streaming replication with PostgreSQL 12 on Ubuntu 20.04 using two separate machines running two separate PostgreSQL 12 clusters. One machine will be the primary and the other, the replica.
In this second part of our Scaling-Rails the cloud provider article series, we are going to see how to create a droplet to host the database layer, for application servers to connect-to and work-with. Our aim here is to minimize the chances of letting a Single Point of Failure (SPoF) emerge as a possible culprit of downtime (or loss), by distinctively delegating one single task per server.
Существует множество факторов, которые необходимо учитывать при выборе серверного окружения (environment), такие как производительность, масштабируемость, доступность, надежность, стоимость и простота…
This guide will demonstrate how to create a round robin two node clustered web server with Nginx and Varnish.
Existe uma versão anterior deste tutorial, escrita por Justin Ellingwood. Ao armazenar dados críticos, ter um ponto único de falha é bastante arriscado. Embora muitos bancos de dados e outros softwares permitam que…
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.
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