Hello,
I have the same problem.
All hosted websites are down...
[root@server11 ~]# systemctl status mysqld
● mysqld.service - LSB: start and stop MariaDB
Loaded: loaded (/etc/rc.d/init.d/mysqld; generated)
Active: failed (Result: exit-code) since Mon 2020-05-18 19:08:31 CEST; 1s ago
Docs: man:systemd-sysv-generator(8)
Process: 22599 ExecStop=/etc/rc.d/init.d/mysqld stop (code=exited, status=0/SUCCESS)
Process: 23136 ExecStart=/etc/rc.d/init.d/mysqld start (code=exited, status=1/FAILURE)
May 18 19:08:28 server11 systemd[1]: Starting LSB: start and stop MariaDB...
May 18 19:08:28 server11 mysqld[23136]: Starting MariaDB.200518 19:08:28 mysqld_safe Logging to '/www/server/mysql/data/server11.err'.
May 18 19:08:28 server11 mysqld[23136]: 200518 19:08:28 mysqld_safe Starting mysqld daemon with databases from /www/server/mysql/data
May 18 19:08:31 server11 mysqld[23136]: ./etc/rc.d/init.d/mysqld: line 264: kill: (23145) - No such process
May 18 19:08:31 server11 mysqld[23136]: ERROR!
May 18 19:08:31 server11 systemd[1]: mysqld.service: Control process exited, code=exited status=1
May 18 19:08:31 server11 systemd[1]: mysqld.service: Failed with result 'exit-code'.
May 18 19:08:31 server11 systemd[1]: Failed to start LSB: start and stop MariaDB.
And
/www/server/mysql/data/server11.err Message error:
2020-05-18 19:08:28 0 [Note] InnoDB: Using Linux native AIO
2020-05-18 19:08:28 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2020-05-18 19:08:28 0 [Note] InnoDB: Uses event mutexes
2020-05-18 19:08:28 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-05-18 19:08:28 0 [Note] InnoDB: Number of pools: 1
2020-05-18 19:08:28 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-05-18 19:08:28 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)
2020-05-18 19:08:28 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2020-05-18 19:08:28 0 [Note] InnoDB: Completed initialization of buffer pool
2020-05-18 19:08:28 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2020-05-18 19:08:28 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-05-18 19:08:28 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-05-18 19:08:28 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-05-18 19:08:28 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2020-05-18 19:08:28 0 [Note] InnoDB: 10.4.12 started; log sequence number 47316; transaction id 9
2020-05-18 19:08:28 0 [Note] InnoDB: Loading buffer pool(s) from /www/server/mysql/data/ib_buffer_pool
2020-05-18 19:08:28 0 [Note] Plugin 'FEEDBACK' is disabled.
2020-05-18 19:08:28 0 [Note] InnoDB: Buffer pool(s) load completed at 200518 19:08:28
2020-05-18 19:08:28 0 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2020-05-18 19:08:28 0 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2020-05-18 19:08:28 0 [Note] Server socket created on IP: '::'.
2020-05-18 19:08:28 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.db' doesn't exist
2020-05-18 19:08:28 0 [ERROR] Aborting