How do you modernize legacy Perl? Take a look behind the scenes at how the MySQLTuner team achieved a massive leap from 55% to 92% test coverage without using external mocking libraries.
Tag: Automation
Live Migration with pgcopydb: Zero Downtime Thanks to Follow Mode
Learn how to use pgcopydb’s –follow option and logical replication slots to achieve near-zero downtime live migrations of PostgreSQL databases.
Technical Architecture and Parallelization in pgcopydb
A deep dive into pgcopydb’s multi-process architecture, table chunking features, and parallel index rebuilding capabilities for faster migrations.
pgcopydb: Redefining PostgreSQL Database Migration
Discover pgcopydb, a high-performance open-source tool by Dimitri Fontaine that revolutionizes PostgreSQL database migration by overcoming the limits of pg_dump.
Modernizing Legacy Perl: How MySQLTuner Reached 92% Test Coverage and Zero-Dependency Autonomy
Maintaining a single-file, zero-dependency legacy script is one of the hardest challenges in software engineering. Over time, codebases written in languages like Perl can become difficult to test, prone to regressions, and challenging for new contributors to navigate. However, the recent development cycle of MySQLTuner-perl (v2.8.41 to v2.8.44) in mid-2026 demonstrates that legacy tools can …
Simplify multi instance management with easymysql
Easymysql EasyMysql is a helper Bash script for MySQL multi instance management. Git Hub source repository https://github.com/jmrenouard/easymysql Purpose This tools is a simple Bash script that help you to clone and manage several MySQL server instances on the same server.