Today I restarted my CentOS 7.4 server and I found that my Mariadb server is not starting. While trying the command
systemctl start mariadb
the server showed error that Mariadb (MySql) server is unable to start try the command
systemctl status mariadb
for more information. I tried the above mentioned command and there was following error shown by above command
Can't init tc log
Aborting
So, in my case the solution was to delete the tc.log file in
/var/lib/mysql/
and then restart the server.