Reading datadir from the MariaDB server failed.

feerdispzoo

Verified User
Joined
Jan 17, 2022
Messages
189
Hello,
I've fallow to this guide for install CloudLinux:

Everything is okay. I've set mariadb 10.5

The problem is my application support only 10.1 - 10.4. I try downgrade to 10.4 with this:
cd /usr/local/directadmin/custombuild/
./build set mysql_inst mariadb
./build set mariadb 10.4

/usr/share/lve/dbgovernor/db-select-mysql --mysql-version=mariadb104

/usr/share/lve/dbgovernor/mysqlgovernor.py --install

The problem, is not possible downgrade to any version, during install by end of process I get issue

Code:
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.
Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details.
Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details.
Giving mysqld a few seconds to start up...
DB-Governor installed/updated...
Patch governor configuration file
DB-Governor restarted...
Check for the need of mysql_upgrade...
Tables should be upgraded!
Reading datadir from the MariaDB server failed. Got the following error when executing the 'mysql' command line client
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
FATAL ERROR: Upgrade failed
The installation of MySQL for db_governor completed
Rebuild php please... /usr/local/directadmin/custombuild/build php
Give mysql service time to start before service checking(15 sec)
Installation failed. Restore previous version? [y/n]

When I install again mariadb105 then working correct. The problem is only with downgrade/change version.
 
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