Кроме того почему-то mysql не стартует со включенным apparmor, выдает ошибку:
181210 0:08:36 [Note] Plugin 'FEDERATED' is disabled.
/usr/sbin/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)
181210 0:08:36 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
181210 0:08:36 InnoDB: The InnoDB memory heap is disabled
181210 0:08:36 InnoDB: Mutexes and rw_locks use GCC atomic builtins
181210 0:08:36 InnoDB: Compressed tables use zlib 1.2.8
181210 0:08:36 InnoDB: Using Linux native AIO
181210 0:08:36 InnoDB: Initializing buffer pool, size = 128.0M
181210 0:08:36 InnoDB: Completed initialization of buffer pool
181210 0:08:36 InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'open'.
InnoDB: Cannot continue operation.
вангую несколько инстансов мускуля, наверняка и apt и дуркер и из исходникоа как следствие срач и правка не того конфига и все небо в попугаях. ибо описанное тс - некорректное поведение.