AWS WordPress update failures – Why does it happen and how to fix them

Where do people host their WordPress sites? If Google Trends is anything to go by, more and more webmasters now prefer cloud platforms such as Amazon Web Services (AWS). It’s fueled by the popular notion that everything in cloud is super easy – one-touch...

How to setup a Percona cluster (PXC)

Percona is a high performance alternative for MySQL. It uses a modified InnoDB engine called XtraDB, and uses Galera’s clustering technology to offer better performance and uptime than MySQL. Today, let’s take a look at how you can setup a Percona cluster,...

How to fix MySQL high IOWait

MySQL is the most popular database used in web applications. It is supported by all hosting providers, is easy to administer, and free. However, MySQL servers often face high server load due to high disk IOWait. Is it really high IOWait? MySQL load can be due to high...