No mysqld or mysql.server after mariadb-server install

Question

So... likely I'm an idiot, but I'm stuck. I just set up a CentOS 7 on Digial Ocean and I can't seem to get the MariaDB/MySQL server running.

Some output

[root@hostname ~]# yum list installed |grep maria
mariadb.x86_64                        1:5.5.37-1.el7_0                @updates  
mariadb-libs.x86_64                   1:5.5.37-1.el7_0                @updates  
mariadb-server.x86_64                 1:5.5.37-1.el7_0                @updates  

So it's installed, can we at least see the client?

[root@hostname ~]# which mysql
/bin/mysql

Let's try and start the server, just for fun

[root@hostname ~]# service mysqld start
Redirecting to /bin/systemctl start  mysqld.service
Failed to issue method call: Unit mysqld.service failed to load: No such file or directory.
[root@hostname ~]# mysqld
-bash: mysqld: command not found
[root@hostname ~]# mysql.server start
-bash: mysql.server: command not found
[root@hostname ~]# 

And this is where I get lost. Looking at what is actually installed, there is no server/daemon

[root@hostname ~]# ls -la /bin/my*
-rwxr-xr-x 1 root root 3419136 Jun 24 10:27 /bin/myisamchk
-rwxr-xr-x 1 root root 3290760 Jun 24 10:27 /bin/myisam_ftdump
-rwxr-xr-x 1 root root 3277032 Jun 24 10:27 /bin/myisamlog
-rwxr-xr-x 1 root root 3320200 Jun 24 10:27 /bin/myisampack
-rwxr-xr-x 1 root root 2914904 Jun 24 10:27 /bin/my_print_defaults
-rwxr-xr-x 1 root root 3533016 Jun 24 10:27 /bin/mysql
-rwxr-xr-x 1 root root  111587 Jun 24 10:24 /bin/mysqlaccess
-rwxr-xr-x 1 root root 3089712 Jun 24 10:27 /bin/mysqladmin
-rwxr-xr-x 1 root root 3253112 Jun 24 10:27 /bin/mysqlbinlog
lrwxrwxrwx 1 root root      26 Sep  8 03:06 /bin/mysqlbug -> /etc/alternatives/mysqlbug
-rwxr-xr-x 1 root root 3090832 Jun 24 10:27 /bin/mysqlcheck
-rwxr-xr-x 1 root root    4247 Jun 24 10:24 /bin/mysql_convert_table_format
-rwxr-xr-x 1 root root   24558 Jun 24 10:24 /bin/mysqld_multi
-rwxr-xr-x 1 root root   27313 Jun 24 10:24 /bin/mysqld_safe
-rwxr-xr-x 1 root root 3173968 Jun 24 10:27 /bin/mysqldump
-rwxr-xr-x 1 root root    7913 Jun 24 10:24 /bin/mysqldumpslow
-rwxr-xr-x 1 root root    3315 Jun 24 10:24 /bin/mysql_find_rows
-rwxr-xr-x 1 root root    1261 Jun 24 10:24 /bin/mysql_fix_extensions
-rwxr-xr-x 1 root root   34826 Jun 24 10:24 /bin/mysqlhotcopy
-rwxr-xr-x 1 root root 3082072 Jun 24 10:27 /bin/mysqlimport
-rwxr-xr-x 1 root root   16204 Jun 24 10:24 /bin/mysql_install_db
-rwxr-xr-x 1 root root 2923136 Jun 24 10:27 /bin/mysql_plugin
-rwxr-xr-x 1 root root   11578 Jun 24 10:24 /bin/mysql_secure_installation
-rwxr-xr-x 1 root root   17473 Jun 24 10:24 /bin/mysql_setpermission
-rwxr-xr-x 1 root root 3084760 Jun 24 10:27 /bin/mysqlshow
-rwxr-xr-x 1 root root 3104240 Jun 24 10:27 /bin/mysqlslap
-rwxr-xr-x 1 root root 3442464 Jun 24 10:27 /bin/mysqltest
-rwxr-xr-x 1 root root 2918416 Jun 24 10:27 /bin/mysql_tzinfo_to_sql
-rwxr-xr-x 1 root root 2995400 Jun 24 10:27 /bin/mysql_upgrade
-rwxr-xr-x 1 root root 2913960 Jun 24 10:27 /bin/mysql_waitpid
-rwxr-xr-x 1 root root    3888 Jun 24 10:24 /bin/mysql_zap

Anyone care to point out what I'm doing wrong here?

Answer 1

Should anyone stumble across this, i found the solution here: https://ask.fedoraproject.org/en/question/43459/how-to-start-mysql-mysql-isnt-starting/

Repost below

---

To start MariaDB on Fedora 20, execute the following command:

systemctl start mariadb.service

To autostart MariaDB on Fedora 20, execute the following command:

systemctl enable mariadb.service

After you started MariaDB (do this only once), execute the following command:

/usr/bin/mysql_secure_installation

Answer 2

When you run:

yum install mysql

command by default it installs MariaDB not MySQL.

So try the following command:

yum list installed | grep mariadb

if mariadb-server is missing try this following command:

yum install mariadb-server

it installs the server package then start the service:

systemctl start mariadb

or:

service mariadb start

My issue was solved in this way.

Answer 3

The service name is mariadb so you can start it using:

service mariadb start

Stop it using:

service mariadb stop

And restart it using:

service mariadb restart

Answer 4

See if mysqld is under /usr/libexec/ directory. At least with CentOS 6.5 the usual MySQL installs the server itself there.

Also see the output from systemctl list-units to see the name for you MariaDB server.

Answer 5

I had a similar problem trying to start the mariadb service

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'

I figured the issue was in non-matching yum packages - some were installed from the special mariadb repo and others from the centos official repo. Thus I had to drop the custom yum repo entry, delete MariaDB packages and install mariadb-server anew, then the service would start without problem.

Answer 6

@OP Please pick a best answer; @Moderator please lock question;

Ran into this same issue, tried the other steps mentioned to no avail; what my problem was being logged in as root/sudo su, after exiting su and running $ systemctl status mariadb I recieved

mariadb.service - MariaDB database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

I then ran $ sudo systemctl enable mariadb recieving

Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.

Then starting mariadb with $ sudo systemctl start mariadb - No error/message so it should be good, but no harm in checking $ systemctl status mariadb

mariadb.service - MariaDB database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since Wed 2018-10-17 10:07:00 CDT; 5min ago
  Process: 18093 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited, status=0/SUCCESS)
  Process: 18000 ExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n (code=exited, status=0/SUCCESS)
 Main PID: 18092 (mysqld_safe)
    Tasks: 20
   CGroup: /system.slice/mariadb.service
           ├─18092 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
           └─18261 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --log-error=/var/log/mariadb/mariadb.log --pid-file=/var/run/mariadb/mariadb.pid --socket=/var/lib/mysql/mysql.sock

Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: MySQL manual for more instructions.
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: Please report any problems at http://mariadb.org/jira
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: The latest information about MariaDB is available at http://mariadb.org/.
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: You can find additional information about the MySQL part at:
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: http://dev.mysql.com
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: Consider joining MariaDB's strong and vibrant community:
Oct 17 10:06:58 centos-7.shared mariadb-prepare-db-dir[18000]: https://mariadb.org/get-involved/
Oct 17 10:06:58 centos-7.shared mysqld_safe[18092]: 181017 10:06:58 mysqld_safe Logging to '/var/log/mariadb/mariadb.log'.
Oct 17 10:06:58 centos-7.shared mysqld_safe[18092]: 181017 10:06:58 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
Oct 17 10:07:00 centos-7.shared systemd[1]: Started MariaDB database server.