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Handling MySQL Replication Data Drift: Mastering Percona Toolkit with Zero Downtime

By admin August 23, 2026

Is your Master and Slave data out of sync even though Replication is running? Learn to use pt-table-checksum and pt-table-sync for online MySQL synchronization without downtime.

Database

Analyzing MySQL Slow Query Log with pt-query-digest: Pinpointing the Real Culprit Behind Database Slowdowns

By admin June 27, 2026

pt-query-digest from Percona Toolkit analyzes MySQL Slow Query Log by grouping and ranking queries by their performance impact. A step-by-step guide: enable logging, install the tool, read the report, and optimize real-world queries.

MySQL

ALTER TABLE on Large MySQL Tables Without Downtime: A Guide to pt-online-schema-change

By admin May 15, 2026

Don't let ALTER TABLE crash your system. Learn how to use pt-online-schema-change to modify large MySQL tables safely, smoothly, and without downtime.