Hi All,

So I installed mysql-server, and this is what I get:


[root@localhost /]# systemctl status -l mysqld
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Sat 2018-06-02 18:28:35 PDT; 59s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 1488 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS (code=exited, status=1/FAILURE)
Process: 1462 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 1488 (code=exited, status=1/FAILURE)
Status: "SERVER_BOOTING"
Error: 2 (No such file or directory)

Jun 02 18:28:34 localhost.Uriah systemd[1]: Starting MySQL Server...
Jun 02 18:28:35 localhost.Uriah systemd[1]: mysqld.service: main process exited, code=exited, status=1/FAILURE
Jun 02 18:28:35 localhost.Uriah systemd[1]: Failed to start MySQL Server.
Jun 02 18:28:35 localhost.Uriah systemd[1]: Unit mysqld.service entered failed state.
Jun 02 18:28:35 localhost.Uriah systemd[1]: mysqld.service failed.

###my.cnf###
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid


Did I miss anything?

Thank you,
Denny

This thread at another forum looks like it might be helpful: https://www.digitalocean.com/communi...n-t-be-restart

Could you tell us more about your machine? What are the specs, especially the RAM.

Also, take a look at /var/log/mysqld.log; see whether it provides any hints.

Hi,

Here are the last few logs.

It doesn't seem like it's the RAM issue.

Thanks again,
Denny




2018-06-03T04:09:15.677197Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.11) starting as process 3906
2018-06-03T04:09:15.749434Z 1 [ERROR] [MY-013090] [InnoDB] InnoDB: Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
2018-06-03T04:09:15.749480Z 1 [ERROR] [MY-012930] [InnoDB] InnoDB: Plugin initialization aborted with error Generic error.
2018-06-03T04:09:16.350285Z 1 [ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
2018-06-03T04:09:16.350639Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2018-06-03T04:09:16.350828Z 0 [ERROR] [MY-010119] [Server] Aborting
2018-06-03T04:09:16.351849Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.11) MySQL Community Server - GPL.