Why is mariadb.service failed to reload?

Hello

i have a problem. Everthing what i need is working fine, databases etc. But in case i use command systemctl reload mariadb a get error
Failed to reload mariadb.service: Job type reload is not applicable for unit mariadb.service.
but can not found why. Mariadb services is working fine, stop and start working too,

Code:

root@:~# systemctl list-units --failed
  UNIT LOAD ACTIVE SUB DESCRIPTION
0 loaded units listed.

fine. Mariadb status is fine too

Code:

root@samantos:~# systemctl status mariadb
● mariadb.service - MariaDB 10.11.4 database server
     Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; preset: enabled)
    Drop-In: /etc/systemd/system/mysql.service.d
             └─limits.conf
     Active: active (running) since Thu 2023-11-02 11:39:07 CET; 22s ago
       Docs: man:mariadbd(8)
             https://mariadb.com/kb/en/library/systemd/
    Process: 1374602 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited, status=0/SUCCESS)
    Process: 1374618 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
    Process: 1374620 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ]   && systemctl>
    Process: 1374757 ExecStartPost=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
    Process: 1374759 ExecStartPost=/etc/mysql/debian-start (code=exited, status=0/SUCCESS)
   Main PID: 1374679 (mariadbd)
     Status: "Taking your SQL requests now..."
      Tasks: 31 (limit: 38398)
     Memory: 252.7M
        CPU: 3.015s
     CGroup: /system.slice/mariadb.service
             └─1374679 /usr/sbin/mariadbd

Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Note] InnoDB: File './ibtmp1' size is now 12.000MiB.
Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Note] InnoDB: log sequence number 43400965301; transaction id 22395263
Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Note] Plugin 'FEEDBACK' is disabled.
Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Warning] You need to use --log-bin to make --expire-logs-days or --binlog-expire-logs-seconds work.
Nov 02 11:39:06 samantos mariadbd[1374679]: 2023-11-02 11:39:06 0 [Note] Server socket created on IP: '127.0.0.1'.
Nov 02 11:39:07 samantos mariadbd[1374679]: 2023-11-02 11:39:07 0 [Note] InnoDB: Buffer pool(s) load completed at 231102 11:39:07
Nov 02 11:39:07 samantos mariadbd[1374679]: 2023-11-02 11:39:07 0 [Note] /usr/sbin/mariadbd: ready for connections.
Nov 02 11:39:07 samantos mariadbd[1374679]: Version: '10.11.4-MariaDB-1~deb12u1'  socket: '/run/mysqld/mysqld.sock'  port: 3306  Debian 12
Nov 02 11:39:07 samantos systemd[1]: Started mariadb.service - MariaDB 10.11.4 database server.

Have anybody idea why?

 

You can restart the MariaDB service instead of reloading it. Restarting the service will cause it to reload its configuration files and restart all of its processes.

 

It says

It means reload is not supported operation for mariadb in systemctl. You need to read the docs to find out why this is the case.