Los contenedores porporcionan una solución elegante para aquellos que buscan diseñar e implementar aplicaciones a escala. Mientras Docker proporciona la tecnología de contenerización, muchos otros proyectos asisten en las herramientas de implementación necesarias para el arranque y comunicación adecuados en el ambiente de implementación.
Corosync is an open source cluster engine used to implement high availability within applications. This tutorial will demonstrate how to use Corosync and Pacemaker to create a high availability (HA) infrastructure on the cloud provider with CentOS 7 servers and Reserved IPs. To facilitate the process of setting up and managing the cluster nodes, we are going to use PCS, a command line interface that interacts with both Corosync and Pacemaker.
HAProxy, which stands for High Availability Proxy, is a popular open source software TCP/HTTP Load Balancer and proxying solution.
Data persistence and file storage represent two of the biggest challenges when horizontally scaling web applications. This is mainly due to the fact that it is hard to maintain consistency of variable data between multiple application nodes.
HAProxy is an open source software which can load balance HTTP and TCP servers. In the previous article on HAProxy we configured load balancing for HTTP and in this one we’ll do the same for MySQL. All your MySQL servers have to be configured to perform Master-Master replication as load balancing involves both reading and writing to all the backends.
Armazenamento de dados seguro e confiável é uma necessidade para quase todas as aplicações modernas. No entanto, a infraestrutura necessária para um banco de dados local autogerenciado pode ser proibitivamente cara para muitas equipes. Da mesma forma, funcionários que possuem as…
Make WordPress deployment easy with a custom Puppet module. This tutorial shows you how to build and deploy the WordPress Peppet module.
NATS is an open source high performance messaging system, often described as “a central nervous system for the cloud”. In this tutorial you’ll configure gnats, the official NATS server and create a basic server overload warning system that sends out emails when server load gets too high, using `gnatsd` as its message broker.
MongoDB is a NoSQL database with great features like replication and sharding built in. This allows you to scale your database to as many servers as you would like by distributing content among them. Use this tutorial to help get everything up and running.
In this tutorial, we will teach you how to set up and use the Apache JMeter HTTP(S) Test Script Recorder to record HTTP requests. Recording HTTP requests is a great way to building test plans, and can be useful in creating tests that closely mimic a normal user’s behavior.
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