If you have a simple reproducer script, that would help. "400-500 small databases" is a bit too generic.
** Changed in: mysql-5.7 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server, which is subscribed to mysql-5.7 in Ubuntu. Matching subscriptions: main https://bugs.launchpad.net/bugs/1789343 Title: mysqldump in MySQL 5.7 running on Ubuntu 18.04 does not release memory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1789343/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs