But i said, /var/lib/mysql.  Huuuuuuge difference.

On Mon, Jul 22, 2024 at 9:59 AM gw1500 <i_was_yah00ed@yahoo.com> wrote:

Hi Jeff,

Thanks for the reply. As I said /var/log/mysql is empty. However this is a moot point now. I uninstalled maria and installed mysql clean.

On 7/22/2024 1:05 AM, Jeff Dyke wrote:

Since it was Aria as well, this may not be the final issue, but every time i see "[ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed." Its due to old ib_logfiles which can be cleared.  They would be in /var/lib/mysql.  Also check if you have "undo00N" logs, normally N = 3.  These can safely be cleared as they will be rebuilt when mariadb finds them missing. 

HTH

On Sun, Jul 21, 2024 at 12:32 PM gw1500 via discuss <discuss@lists.mariadb.org> wrote:

I've just installed maria on ubuntu but cannot start mariadb:

× mariadb.service - MariaDB 10.6.18 database server
     Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2024-07-21 16:12:47 UTC; 54s ago
       Docs: man:mariadbd(8)
             https://mariadb.com/kb/en/library/systemd/
    Process: 3483 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited, status=0/SUCCESS)
    Process: 3484 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS)
    Process: 3486 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ]   && systemctl set>
    Process: 3515 ExecStart=/usr/sbin/mariadbd $MYSQLD_OPTS $_WSREP_NEW_CLUSTER $_WSREP_START_POSITION (code=exited, status=1/FAILURE)
   Main PID: 3515 (code=exited, status=1/FAILURE)
     Status: "MariaDB server is down"
        CPU: 114ms

Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [Note] InnoDB: Starting shutdown...
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [Note] Plugin 'FEEDBACK' is disabled.
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [ERROR] Could not open mysql.plugin table: "Unknown storage engine 'Aria'". Some plugins may be not loaded
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [ERROR] Failed to initialize plugins.
Jul 21 16:12:47 dap002 mariadbd[3515]: 2024-07-21 16:12:47 0 [ERROR] Aborting
Jul 21 16:12:47 dap002 systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE
Jul 21 16:12:47 dap002 systemd[1]: mariadb.service: Failed with result 'exit-code'.
Jul 21 16:12:47 dap002 systemd[1]: Failed to start MariaDB 10.6.18 database server.

I searched for this error (Unknown storage engine Aria) but the solution is to remove the log from /var/log/mysql. However, that directory is empty. If ubuntu puts that log somewhere else I cannot find it. Can someone point me in the right direction for resolving this? TIA.

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