Scaling

Prelude> Prelude # 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.

About HAProxy> About HAProxy # HAProxy(High Availability Proxy) is an open source load balancer which can load balance any TCP service. It is particularly suited for HTTP load balancing as it supports session persistence and layer 7 processing.

Introduction> Introduction # 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.

Introduction> Introduction # Mesosphere is a system that combines a number of components to effectively manage server clustering and highly available deployments on top of an existing operating system layer. Unlike systems like CoreOS, Mesosphere is not a specialized operating system and is instead a set of packages.

Introduction> Introduction # HAProxy, which stands for High Availability Proxy, is a popular open source software TCP/HTTP Load Balancer and proxying solution which can be run on Linux, macOS, and FreeBSD.

Introduction> Introduction # In this tutorial, we will teach you how to scale up your WordPress MySQL database server setup using master-slave database replication and the HyperDB plugin for WordPress. Adding more database servers to your environment in this manner allows your WordPress application to read from multiple database servers, increasing read performance.

Introduction> Introduction # In this tutorial, we will go over how to use Apache JMeter to perform basic load and stress testing on your web application environment. We will show you how to use the graphical user interface to build a test plan and to run tests against a web server.

Introduction> Introduction # Kubernetes is a powerful open-source system, initially developed by Google and supported by the Cloud Native Computing Foundation (CNCF), for managing containerized applications in a clustered environment. It aims to provide better ways of managing related, distributed components and services across varied infrastructure.

Introduction> Introduction # In this guide, we will discuss Nginx’s http proxying capabilities, which allow Nginx to pass requests off to backend http servers for further processing. Nginx is often set up as a reverse proxy solution to help scale out infrastructure or to pass requests to other servers that are not designed to handle large client loads.

Introduction> Introduction # CoreOS allows you to easily run services in Docker containers across a cluster of machines. The procedure for doing so usually involves starting one or multiple instances of a service and then registering each instance with etcd, CoreOS’s distributed key-value store.

Introduction> Introduction # This article shows you how to set up Nginx load balancing with SSL termination with just one SSL certificate on the load balancer. This will reduce your SSL management overhead, since the OpenSSL updates and the keys and certificates can now be managed from the load balancer itself.

Introduction> Introduction # When deciding which server architecture to use for your environment, there are many factors to consider, such as performance, scalability, availability, reliability, cost, and management. In this tutorial, you will learn about commonly used server setups, with a short description of each, including the pros and cons.

Introduction> Introduction # In a traditional mutable server infrastructure, servers are continually updated and modified in place. Engineers and administrators working with this kind of infrastructure can SSH into their servers, upgrade or downgrade packages manually, tweak configuration files on a server-by-server basis, and deploy new code directly onto existing servers.

Introduction> Introduction # Memcached is a distributed object caching system which stores information in memory, rather than on disk, for faster access. PHP’s Memcache module can be used to handle sessions which would otherwise be stored on the file system.

Introduction> Introduction # In this tutorial, we will teach you how to use HAProxy as a layer 7 load balancer to serve multiple applications from a single domain name or IP address.

Note: A newer version of this tutorial, which uses Puppet Server instead of Puppet with Passenger, can be found here: How To Install Puppet 4 in a Master-Agent Setup on Ubuntu 14.

Status: Deprecated> Status: Deprecated # This tutorial has been deprecated and is no longer maintained. Reason: This tutorial covers an outdated method for building a multi-master topology. At the time this article was originally published, group replication had not yet been implemented in MySQL.

Introduction> Introduction # One of the technologies that makes CoreOS possible is etcd, a globally distributed key-value store. This service is used by the individual CoreOS machines to form a cluster and as a platform to store globally-accessible data.

Introduction> Introduction # HAProxy, which stands for High Availability Proxy, is a popular open source software TCP/HTTP Load Balancer and proxying solution which can be run on Linux, Solaris, and FreeBSD.

An Article from Elastic> An Article from Elastic # Introduction> Introduction # Making sense of the millions of log lines your organization generates can be a daunting challenge. On one hand, these log lines provide a view into application performance, server performance metrics, and security.