This article discusses how to salvage a crashed pt-online-schema-change by leveraging pt-archiver and executing queries to ensure that the data gets accurately migrated. I will show you how to continue the data copy process, and how to safely close out the pt-online-schema-change via manual operations such as RENAME TABLE and DROP TRIGGER commands. The normal process […]Read more
In this post, I’ll share my experience attending the annual MySQL User Group Leaders Summit in Bucharest, Romania.
The MySQL User Group Leaders Summit gathers together as many of the global MySQL user group leaders as possible. At the summit, we discuss further actions on how we can better act for their local communities. This […]
Please join Jay Janssen for the webinar Percona XtraDB Cluster Reference Architecture Wednesday, June 29 at 10:00 AM PDT (UTC- 7).
A reference architecture shows a typical, common, best-practice deployment of a system with all the surrounding infrastructure. In the case of database clusters, this can include the hosting platform, load balancing, monitoring, backups, etc.
Percona published […]
In this blog, I will discuss how parallel crash recovery in MySQL benefits several processes.
I recently filed an Oracle feature request to make crash recovery faster by running in multiple threads.
This might not seem very important, because MySQL does not crash that often. When it does crash, however, crash recovery can take 45 mins […]