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How to monitor ALTER TABLE progress in MySQL

 | February 26, 2014 |  Posted In: MySQL, Percona MySQL Support, Percona Toolkit

While working on a recent support issue as a Percona Support Engineer,  I got one question from a customer asking how to monitor ALTER TABLE progress. Actually, for MySQL 5.5 and prior versions, it’s quite difficult to ALTER the table in a running production environment especially for large tables (with millions records). Because it will rebuild and lock the table […]

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