Hello, KDE Community! Long time no see here and I'm happy KDE is getting better and better everyday. In short, I have an issue that is my akonadi database seems to be broken after an installation of MySQL. My question: how to solve this issue? Thank you very much in advance.

My system:
- Kubuntu 20.10 Groovy Gorilla
- KDE Plasma 5.19.5
- akonadiserver 5.15.1 (20.08.1)
- mysqld Ver 10.3.29-MariaDB-0ubuntu0.20.10.1 for debian-linux-gnu on x86_64 (Ubuntu 20.10)
- mysqld-akonadi Ver 10.3.29-MariaDB-0ubuntu0.20.10.1 for debian-linux-gnu on x86_64 (Ubuntu 20.10)
- mariadb Ver 15.1 Distrib 10.3.29-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

My issues:
- Akonadictl errors[1]
- KNotes missing notes[2]
- Network manager does not remember previously remembered passwords

Expected behavior:
- Knotes can open my notes like usual
- Network Manager can remember password, I don't need to input them repeatedly

What happened instead:
- Knotes can not open my notes, unlike the usual
- Network Manager can not remember password, I must input same passwords over and over again

Suspected:
- I installed MySQL some while ago and right after that I remembered when all issues above begun but I do not have clues

[1] akonadictl error message:

Code: Select all

master@master:~$ akonadictl start
org.kde.pim.akonadictl: Starting Akonadi Server...
org.kde.pim.akonadictl:    done.
master@master:~$ Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: Starting up the Akonadi Server...
org.kde.pim.akonadiserver: database server stopped unexpectedly
org.kde.pim.akonadiserver: Database process exited unexpectedly during initial connection!
org.kde.pim.akonadiserver: executable: "/usr/sbin/mysqld-akonadi"
org.kde.pim.akonadiserver: arguments: ("--defaults-file=/home/master/.local/share/akonadi/mysql.conf", "--datadir=/home/master/.local/share/akonadi/db_data/", "--socket=/run/user/1000/akonadi/mysql.socket", "--pid-file=/run/user/1000/akonadi/mysql.pid")
org.kde.pim.akonadiserver: stdout: ""
org.kde.pim.akonadiserver: stderr: "Could not open required defaults file: /home/master/.local/share/akonadi/mysql.conf\nFatal error in defaults handling. Program aborted\n"
org.kde.pim.akonadiserver: exit code: 1
org.kde.pim.akonadiserver: process error: "Unknown error"
org.kde.pim.akonadiserver: Shutting down AkonadiServer...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadiserver' exited normally...

[2] knotes error message:

Code: Select all

master@master:~$ knotes
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
org.kde.pim.akonadiserver: Starting up the Akonadi Server...
org.kde.pim.akonadiserver: database server stopped unexpectedly
org.kde.pim.akonadiserver: Database process exited unexpectedly during initial connection!
org.kde.pim.akonadiserver: executable: "/usr/sbin/mysqld-akonadi"
org.kde.pim.akonadiserver: arguments: ("--defaults-file=/home/master/.local/share/akonadi/mysql.conf", "--datadir=/home/master/.local/share/akonadi/db_data/", "--socket=/run/user/1000/akonadi/mysql.socket", "--pid-file=/run/user/1000/akonadi/mysql.pid")
org.kde.pim.akonadiserver: stdout: ""
org.kde.pim.akonadiserver: stderr: "Could not open required defaults file: /home/master/.local/share/akonadi/mysql.conf\nFatal error in defaults handling. Program aborted\n"
org.kde.pim.akonadiserver: exit code: 1
org.kde.pim.akonadiserver: process error: "Unknown error"
org.kde.pim.akonadiserver: Shutting down AkonadiServer...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadiserver' exited normally...
org.kde.pim.akonadicore: Job error:  "" for collection: QVector()


Please help me solve this issue.

Please read this forum subject.