Thank you for taking the time to report this bug and helping to make Ubuntu better.
We'll look into whether it's appropriate to make this change by default for all users. > Problem goes away (at least until I run an apt update again Rather than edit /lib/systemd/system/mysql.service, you should override behaviour by creating a /etc/systemd/system/mysql.service with the directives you want to override. This is the provided mechanism to make changes to your system that won't get overwritten by future updates. ** Changed in: mysql-5.7 (Ubuntu) Status: New => Triaged ** Changed in: mysql-5.7 (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776615 Title: mysqldump: Got error: 1016: Can't open file: 'some_file' (errno: 24 - Too many open files) when using LOCK TABLES To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1776615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs