Upgrades are usually one of the biggest part of any database infrastructure maintenance. Even with enough planning something else can go bad after sending your production application to the version you’ve upgraded to. Let’s look at how one Percona Toolkit tool, pt-upgrade can help you identify what to expect and test your upgrades better […]Read more
Until MySQL 5.5 the only variable used to identify a network connectivity problem between Master and Slave was slave-net-timeout. This variable specifies the number of seconds to wait for more Binary Logs events from the master before abort the connection and establish it again. With a default value of 3600 this has been a […]Read more
Profiling, analyzing and then fixing queries is likely the most oft-repeated part of a job of a DBA and one that keeps evolving, as new features are added to the application new queries pop up that need to be analyzed and fixed. And there are not too many tools out there that can make […]
The MySQL council is looking for candidates for 2012. Based on community feedback, this will be an open nomination process (and you can nominate yourself).
The MySQL council advocates for the MySQL community, and needs community leaders to help address issues such as keeping the bug database open and keeping the user conference from fragmenting. […]
Many of us find INFORMATION_SCHEMA painfully slow to work it when it comes to retrieving table meta data. Many people resort to using file system tools instead to
find for example how much space innodb tables are using and things like it. Besides being just slow accessing information_schema can often impact server performance
Merry Christmas! Just in time for the holidays, we have released a new tool to help you configure and manage your MySQL servers. Our online MySQL Configuration Wizard can help you generate a good basic configuration file for a server. This MySQL tuning wizard is our answer to the commonly asked question, “what is […]Read more
Once upon a time, it would have been considered madness to even attempt to create 30,000 tables in InnoDB. That time is now a memory. We have customers with a lot more tables than a mere 30,000. There have historically been no tests for anything near this many tables in the MySQL test suite.
Very shortly after the XtraBackup 1.6.4 binaries hit the downloads site and repositories, it was found to have a bug where the master information was not properly stored, thus breaking point in time recovery and the ability to start a slave from a backup.
This was caught and fixed really quickly and we’ve re-spun the […]