There are tons of tutorials sharing about how to host WordPress on the Cloud, this series of articles are to share our cloud methodology, and technology how Artisan deploy WordPress on the Alibaba Cloud. The process of deployment is always: 1. optimize current architecture, cache all you can, doing so will help you to save unnecessary scaling cost (why scale…
There’s two major challenge when scaling a traditional CMS like Prestashop / Drupal: – Centralized session – File storage synchronized – Isolate Backend traffic to a single instance Let’s dive into details for each of them: Centralized Session This is the easiest one to be taken care of, we will use Redis as the session backend, in AWS, the…
With the Hyper-V GUI manager, its just too headache to copy a freshly installed OS to multiple new VM, especially while testing clustering software like DRBD or Ceph. Here’s a quick powershell script to copy a Centos7 source VM into 5 new VM: [shell]ForEach ($number in 1..5){ #Path to our source VHD $srcVHDPath = “D:\Hyper-V\Centos7-Ori.vhdx” #Path to create new VHDs…
Lsynvd is a great tool for file sync across multiple web servers, instead of having a single NFS share, each web server will have their own copy of of files, solving single point of failure problem, and completely removing IOPS worry from web tier. The following guide is to setup lsyncd on the primary web server (where code changes or…