Node has dropped from cluster error in Galera Cluster
Kedar
Recently I noted a strange MySQL replication error in a Percona XtraDB Cluster (PXC) node replicating from a standard MySQL instance. “Node has dropped from cluster”. This is a quick blog…
A year in MySQL Blogging – top blogs, summary and review
The year 2023 surely was a successful year in MySQL blogging. I managed to publish 24 MySQL blogs in total both personal and Percona blog. This post is a reflection…
How to filter MySQL slow queries using pt-query-digest
The pt-query-digest is my go-to tool in order to perform slow query analysis, improve query performance and thus overall MySQL performance. In this blog post, I’m going to highlight the…
What do you need to debug MySQL issues – a checklist
Welcome to the ultimate guide for MySQL issues debugging — your comprehensive MySQL checklist for tackling MySQL database environment challenges. This checklist for MySQL debugging is as useful to a…
How to get MySQL Primary Keys in one minute
This blog post talks about one of the important MySQL configuration, sql_generate_invisible_primary_key, available in MySQL 8.0.30. This will save you from performance bottlenecks due to tables without Primary Key. If…
Quick Look – MySQL Data Directory Files
Do you know what lies inside your MySQL Data Directory? This article is a quick guide about the files stored inside MySQL data directory. Data managed by the MySQL server…