Possible memory issue when backing up hourly?


Munin’s graphs for MySQL memory is increasing progressively. At code level there have not been major changes. At sys level we started to backup hourly using Persona XtraBackup. And we wonder if memory issues might be related to backups.

Database is small (2.875MB / 45 tables), running over InnoDB.

I attach an image of curve graph.


There is no image.