Do Not Upgrade to Any Version of MySQL After 8.0.37
Warning! Recently, Jean-François Gagné opened a bug on bug.mysql.com #115517; unfortunately, the bug is now private. However, the bug looks quite serious. We at Percona have performed several tests and opened the issue PS-9306 to investigate the problem. In short, what happens is that if you create a large number of tables, like 10000, the […]
A Simple Approach to Troubleshooting High CPU in MySQL
One of our customers recently asked whether it is possible to identify, from the MySQL side, the query that is causing high CPU usage on his system. The usage of simple OS tools to find the culprit has been a widely used technique for a long time by PostgreSQL and Oracle DBAs, but it didn’t work for MySQL as historically we’ve lacked the instrumentation to match an OS thread with an internal proce
Use MySQL Without a Password (and Still be Secure)
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
Practical Tips for Using MySQL as a Scalable Key-Value Store
All of Percona’s open source software products, in one place, to download as much or as little as you need.
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How To Measure the Network Impact on PostgreSQL Performance
