A small `--where` clause can create a much bigger problem.
Corrado Pandiani explains how `pt-online-schema-change` can trigger oversized transactions and Galera Flow Control.
https://bit.ly/4danazi
#MySQL #Galera #PXC #PerconaToolkit #DatabasePerformance
Corrado Pandiani explains how `pt-online-schema-change` can trigger oversized transactions and Galera Flow Control.
https://bit.ly/4danazi
#MySQL #Galera #PXC #PerconaToolkit #DatabasePerformance
When pt-online-schema-change "where" Meets Galera: Understanding Chunk Auto-Resize and Flow Control
Percona Toolkit’s pt-online-schema-change (pt-osc) has long been the preferred solution for performing online schema changes with minimal downtime. Its chunk-based copy algorithm is designed to adapt ...
bit.ly
October 6, 2026 at 3:04 PM
A small `--where` clause can create a much bigger problem.
Corrado Pandiani explains how `pt-online-schema-change` can trigger oversized transactions and Galera Flow Control.
https://bit.ly/4danazi
#MySQL #Galera #PXC #PerconaToolkit #DatabasePerformance
Corrado Pandiani explains how `pt-online-schema-change` can trigger oversized transactions and Galera Flow Control.
https://bit.ly/4danazi
#MySQL #Galera #PXC #PerconaToolkit #DatabasePerformance