Kontact fails because akonadi not operational

[joneall]

$ sudo aa-status
apparmor module is loaded.
17 profiles are loaded.
17 profiles are in enforce mode.
/sbin/dhclient
/usr/lib/NetworkManager/nm-dhcp-client.action
/usr/lib/NetworkManager/nm-dhcp-helper
/usr/lib/connman/scripts/dhclient-script
/usr/lib/cups/backend/cups-pdf
/usr/lib/telepathy/mission-control-5
/usr/lib/telepathy/telepathy-*
/usr/lib/telepathy/telepathy-*//pxgsettings
/usr/lib/telepathy/telepathy-*//sanitized_helper
/usr/lib/telepathy/telepathy-ofono
/usr/sbin/cups-browsed
/usr/sbin/cupsd
/usr/sbin/cupsd//third_party
/usr/sbin/mysqld
/usr/sbin/mysqld-akonadi
/usr/sbin/mysqld-akonadi///usr/sbin/mysqld
/usr/sbin/tcpdump
0 profiles are in complain mode.
5 processes have profiles defined.
5 processes are in enforce mode.
/sbin/dhclient (840)
/usr/sbin/cups-browsed (774)
/usr/sbin/cupsd (2678)
/usr/sbin/cupsd (2683)
/usr/sbin/mysqld (1178)
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.

[SteveRiley]

What's the output of

sudo aa-status

[joneall]

Since upgrading to 15.04, I cannot get kontact to work. It gives the error

"The akonadi personal information management service is not operational."

In the details, it says akonadictl found and usable, but control process not registered at D-Bus.

I tried deleting kontact files in .kde/share/apps and .kde/share/config, but to no avail.

This problem has been reported and Piotr has proposed a solution, but it doesn't work for everybody. Besides, since I use mysql for other things, I do not want to replace it with something called mariadb, whatever that may be.

If I look in the logs, kern.log contains some entries like

kernel: [ 1118.811706] audit: type=1400 audit(1434864305.127:19): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld-akonadi///usr/sbin/mysqld" name="/etc/mysql/mysql.cnf" pid=2612 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

and syslog, like

[ 1118.811706] audit: type=1400 audit(1434864305.127:19): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld-akonadi///usr/sbin/mysqld" name="/etc/mysql/mysql.cnf" pid=2612 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0