The Ultimate Guide to High Availability with MariaDB

Memory Instrumentaion

Hello,

Is there a way to enable Memory instrumentation in performance_schema.setup_instruments ?

Thanks for your help

Answer

No, there is no way to do it now.

Memory instrumentation is a new feature in MySQL 5.7, at the moment it's only available in the development milestone releases, not suitable for production use. We have not merged this feature into MariaDB yet. We can consider doing it later, when this feature will stabilize.

Currently you can use MariaDB memory instrumentation that is in the information schema. Per-thread memory usage is visible in the MEMORY_USED column of the INFORMATION_SCHEMA.PROCESSLIST table. Global and session local memory usage is visible in the Memory_used status variable (use SHOW GLOBAL STATUS and SHOW SESSION STATUS).

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