mysqld / MariaDB server is down. Got error when turn it on again. How to fix?

[Horse]

System services screenshot :

Try click restart button, got this error message :

Failed to start service

Try run this command on ssh, here is the result:

root@server1:~# service mysqld restart
Job for mysqld.service failed because the control process exited with error code.
See "systemctl status mysqld.service" and "journalctl -xeu mysqld.service" for details.
root@server1:~# ^C
root@server1:~# systemctl status mysqld.service
× mysqld.service - MySQL database server
Loaded: loaded (/etc/systemd/system/mysqld.service; enabled; preset: enabled)
Active: failed (Result: exit-code) since Wed 2026-02-25 23:51:24 WIB; 44s ago
Process: 5712 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (cod>
Process: 5714 ExecStartPre=/bin/sh -c [ ! -e /usr/local/mysql/bin/galera_recovery ] && VAR= >
Process: 5733 ExecStart=/usr/local/mysql/bin/mysqld $MYSQLD_OPTS $_WSREP_NEW_CLUSTER $_WSREP>
Main PID: 5733 (code=exited, status=1/FAILURE)
Status: "MariaDB server is down"
CPU: 325ms

Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [ERROR] InnoDB: Plugin initializatio>
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [Note] InnoDB: Starting shutdown...
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [ERROR] Plugin 'InnoDB' registration>
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [Note] Plugin 'FEEDBACK' is disabled.
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [ERROR] Could not open mysql.plugin >
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [ERROR] Failed to initialize plugins.
Feb 25 23:51:24 server1 mysqld[5733]: 2026-02-25 23:51:24 0 [ERROR] Aborting
Feb 25 23:51:24 server1 systemd[1]: mysqld.service: Main process exited, code=exited, status=1/F>
Feb 25 23:51:24 server1 systemd[1]: mysqld.service: Failed with result 'exit-code'.
Feb 25 23:51:24 server1 systemd[1]: Failed to start mysqld.service - MySQL database server.
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Reads another similar threads, but no one works yet

OS : Ubuntu 24
Please help, let me know if you need other infos

 

[Aar]

What is this reporting?
journalctl -xeu mysqld.service

 

[Ohm J]

Your disk is still safe ?

Look like some raids are broken.

 

[Horse]

What is this reporting?
journalctl -xeu mysqld.service

I dont know
If anyone know, please share

Your disk is still safe ?

Look like some raids are broken.

Its a vps, looks like its save

the other services is working, only mysqld / MariaDB that not working




Please help what can i do, like reinstall mysqld / MariaDB, or command to fix this

 

[Aar]

What is this reporting?

journalctl -xeu mysqld.service

We can only wait until you give us the correct answer. So, try entering that command.

 

[Ohm J]

LFD is broken too, then I'm sure something wrong with Disk.


For recovery process, required the disk space to copy old data, incase... something not correctly.

First thing, backup the directory before do any recovery process.

stat /var/lib/mysql/
cp -rf /var/lib/mysql/ /root/mysql_backup/

check if backup is done.

stat /root/mysql_backup

### Process to recovery

#remove any "ib_logfil"

rm -f /var/lib/mysql/ib_logfil*
[CODE]

#try start again.
[CODE]
systemctl start mysqld
systemctl status mysqld -l