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Arunjith Aravindan
Arunjith Aravindan is a seasoned MySQL expert and passionate open-source advocate with over 15 years of experience in open-source technologies and MySQL consulting. He holds a Master’s degree in Computer Applications (MCA) and brings deep expertise in computer science, software development, and database management. Author of Hands-On MySQL Administration: Managing MySQL on Premises and in the Cloud, published by O’Reilly, and Mastering Amazon Relational Database Service for MySQL: Building and Configuring MySQL Instances, published by BPB. In 2014, Arunjith joined Percona, a leading provider of open source database solutions and services, as a consultant. In his role, he works closely with Managed Services customers to build and maintain reliable and efficient MySQL infrastructures. Arunjith's expertise includes performance analysis and optimization of MySQL, RDS, and Aurora, query optimization and auditing, troubleshooting, as well as high availability and scalability in MySQL and major version upgrades. Armed with a passion for open-source technologies, particularly MySQL and PostgreSQL, Arunjith is committed to staying up to date with the latest developments in the industry. He possesses exceptional technical communication skills and can articulate complex ideas to both technical and non-technical audiences. This is evident in his numerous blog posts and speaking engagements at various conferences such as Percona Live in Austin, TX; AWS Community Day in Kochi; Percona Conferences in Singapore and Bangalore; and Percona University in Hyderabad.

Tools for Monitoring and Managing MySQL Replication

MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication. What is MySQL Replication? It’s the process of copying the (real-time events) data from one master instance to another slave instance and maintaining the redundant consistent data in a different […]

The MySQL Query Cache: How it works, plus workload impacts

The MySQL query cache is one of the prominent features in MySQL and a vital part of query optimization. It is important to know how the MySQL query cache works, as it has the potential to cause significant performance improvements – or a slowdown – of your workload. The MySQL query cache is a global one shared among […]

How to avoid hash collisions when using MySQL’s CRC32 function

Percona Toolkit’s  pt-table-checksum performs an online replication consistency check by executing checksum queries on the master, which produces different results on replicas that are inconsistent with the master – and the tool pt-table-sync synchronizes data efficiently between MySQL tables. The tools by default use the CRC32. Other good choices include MD5 and SHA1. If you have installed the FNV_64 user-defined function, pt-table-sync will […]