MySQL Internals

InnoDB Parallel Redo Logs MySQL 8
InnoDB

How do InnoDB Parallel Redo Logs work in MySQL 8?

Introduction Parallel redo logging in InnoDB, introduced in MySQL 8.0, is a significant enhancement aimed at improving the performance of write-heavy workloads. It enhances the efficiency of redo log operations, particularly on systems with multiple [...]
Tuning InnoDB I/O Threads for Optimal Performance
InnoDB

Enhancing MySQL 8 on Modern Hardware: A Guide to Tuning InnoDB I/O Threads for Optimal Performance

In this comprehensive guide, we delve into the advanced tuning of `innodb_read_io_threads` and `innodb_write_io_threads` in MySQL 8, specifically tailored for modern hardware infrastructures. We cover essential strategies for incrementally adjusting these settings to harness the full capabilities of SSDs and multi-core processors, ensuring a balanced and efficient use of resources. The guide also emphasizes the importance of monitoring performance metrics to gauge the impact of tuning efforts, while highlighting the need to maintain a balance between read and write operations for optimal database performance. Whether you're dealing with read-intensive or write-heavy workloads, this guide provides actionable insights for optimizing MySQL 8 on the latest hardware technologies. [...]
MinervaDB

Troubleshooting MySQL Query Performance with Strace: A Practical Guide

After following the steps outlined in this guide, you should be able to diagnose and optimize the performance of a specific MySQL query using strace. By tracing the MySQL thread and analyzing the system calls captured in the mysql_strace.log file, you can identify potential bottlenecks and take appropriate optimization steps. […]

MinervaDB

Troubleshooting signal waits happening to MySQL

Troubleshooting signal waits in MySQL can be a challenging task for database administrators. This insightful article delves into the complexities of signal waits, offering valuable guidance on identifying and resolving these issues. […]

MinervaDB

Creating and Implementing Custom Sequences in MySQL 8

In MySQL, a table-based sequence is used to generate a sequence of numbers, typically for auto-incrementing primary keys. However, unlike some other databases, MySQL does not have a built-in SEQUENCE object. Instead, you can simulate a sequence […]

MinervaDB

Automating MySQL Slow Query Log Management with Logrotate

In managing MySQL databases, it’s crucial to keep the slow query log under control to avoid excessive disk usage and to maintain a clear history of queries that may need optimization. Logrotate serves as an invaluable tool for this task, allowing for automatic weekly archiving of the slow query log, compressing old logs, and thus ensuring your logging system is both efficient and manageable. This routine contributes significantly to a robust and well-maintained MySQL server, leading to improved performance and streamlined troubleshooting. […]