I just installed MySQL 5.7.23 on Centos 7. As soon as I do systemctl start mysqld gives me an error. Making systemctl status mysqld returns:
●�mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
���Active: failed�(Result: start-limit) since Tue 2019-08-27 02:55:20 CEST; 11min ago
�����Docs: man:mysqld(8)
���������http://dev.mysql.com/doc/refman/en/using-systemd.html
��Process: 11299 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=1/FAILURE)
��Process: 11281 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Aug 27 02:55:20 server0-centos7 systemd[1]: mysqld.service: control process exited, code=exited status=1
Aug 27 02:55:20 server0-centos7 systemd[1]: Failed to start MySQL Server.
Aug 27 02:55:20 server0-centos7 systemd[1]: Unit mysqld.service entered failed state.
Aug 27 02:55:20 server0-centos7 systemd[1]: mysqld.service failed.
Aug 27 02:55:20 server0-centos7 systemd[1]: mysqld.service holdoff time over, scheduling restart.
Aug 27 02:55:20 server0-centos7 systemd[1]: Stopped MySQL Server.
Aug 27 02:55:20 server0-centos7 systemd[1]: start request repeated too quickly for mysqld.service
Aug 27 02:55:20 server0-centos7 systemd[1]: Failed to start MySQL Server.
Aug 27 02:55:20 server0-centos7 systemd[1]: Unit mysqld.service entered failed state.
Aug 27 02:55:20 server0-centos7 systemd[1]: mysqld.service failed.
There can be various reasons for this issue.
Required folder permissions may not be there.
Please find the answer related to folder permission here.
Job for mysqld.service failed in Centos 7
You may have less RAM free with the MySQL service stopped, so as soon as you run:
systemctl start mysqld
MySQL is attempting to utilize more than what’s available and since it’s unable to do so, it fails.
For database-driven websites, I recommend at least 1GB of RAM minimum. if you still want to run with less MB of RAM then I’d recommend NGINX over Apache.
Related
I cannot start Mysql-server on ubuntu 20.04 when I try systemctl status mysql.service i got this message:
mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; disabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2021-08-24 11:27:20 UTC; 12s ago
Process: 46074 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited,
status=1/FAILURE)
Aug 24 11:27:20 virtualmin systemd[1]: mysql.service: Control process exited,
code=exited, status=1/FAILURE
Aug 24 11:27:20 virtualmin systemd[1]: mysql.service: Failed with result 'exit-code'.
Aug 24 11:27:20 virtualmin systemd[1]: Failed to start MySQL Community Server.
Aug 24 11:27:20 virtualmin systemd[1]: mysql.service: Scheduled restart job, restart
counter is at 5.
Aug 24 11:27:20 virtualmin systemd[1]: Stopped MySQL Community Server.
Aug 24 11:27:20 virtualmin systemd[1]: mysql.service: Start request repeated too
quickly.
Aug 24 11:27:20 virtualmin systemd[1]: mysql.service: Failed with result 'exit-code'.
Aug 24 11:27:20 virtualmin systemd[1]: Failed to start MySQL Community Server.
mostly other service is running on the same port (3306) ,
try
netstat -pnltu | grep -i "3306"
it will show all services running on that port , if there are any , just end it and restart your Mysql server
After I updated manjaro-system-20210412-1 and restarted it, I found that mysqlserver failed to start
➜ ~ mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2)
➜ ~ systemctl status mysqld.service
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2021-04-20 15:42:18 CST; 23s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 877 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Process: 923 ExecStart=/usr/bin/mysqld $MYSQLD_OPTS (code=exited, status=127)
Main PID: 923 (code=exited, status=127)
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: mysqld.service: Main process exited,
code=exited, status=127/n/a
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: mysqld.service: Failed with result 'exit-
code'.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: Failed to start MySQL Server.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: mysqld.service: Scheduled restart job,
restart counter is at 5.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: Stopped MySQL Server.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: mysqld.service: Start request repeated too
quickly.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: mysqld.service: Failed with result 'exit-
code'.
4月 20 15:42:18 ybybwdwd-vmwarevirtualplatform systemd[1]: Failed to start MySQL Server.
➜ ~ systemctl restart mysqld.service
Job for mysqld.service failed because the control process exited with error code.
See "systemctl status mysqld.service" and "journalctl -xe" for details.
Then I found that the files in the /run/mysqld/ directory disappeared. I can't search with sudo find / -name'mysqld.sock'.
I used sudo pacman -Rns mysql to uninstall mysql and reinstall it still reported the above error.
The mysql version is 8.0.23, installed with pacman.
I am searching for a long time on net. But no use. Please help or try to give some ideas how to achieve this.
I tried to reinstall MySQL and now it doesn't even start, and if I go to "messages" it says this
Jul 23 11:04:27 systemd: Starting MySQL Server...
Jul 23 11:04:29 systemd: mysqld.service: main process exited, code=exited, status=1/FAILURE
Jul 23 11:04:29 systemd: Failed to start MySQL Server.
Jul 23 11:04:29 systemd: Unit mysqld.service entered failed state.
Jul 23 11:04:29 systemd: mysqld.service failed.
i know that vendor preset: disabled is fine
i have changer the chown for mysql directory
even the chown for mysql.sock changed it three times
and still getting the same error
So any help will be thankful even if you are new
● mariadb.service - MariaDB 10.3 database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
Drop-In: /usr/lib/systemd/system/mariadb.service.d
└─tokudb.conf
Active: failed (Result: exit-code) since Thu 2019-01-31 00:04:01 EET; 2min 39s ago
Docs: man:mysqld(8)
https://mariadb.com/kb/en/library/systemd/
Process: 1121 ExecStartPre=/usr/libexec/mysql-prepare-db-dir mariadb.service (code=exited, status=1/FAILURE)
Process: 1038 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
Jan 31 00:03:55 localhost.localdomain systemd[1]: Starting MariaDB 10.3 database server...
Jan 31 00:04:01 localhost.localdomain mysql-prepare-db-dir[1121]: The log file /var/log/mariadb/mariadb.log cannot be written, please, fix its permissions.
Jan 31 00:04:01 localhost.localdomain mysql-prepare-db-dir[1121]: The daemon will be run under mysql:mysql
Jan 31 00:04:01 localhost.localdomain systemd[1]: mariadb.service: Control process exited, code=exited status=1
Jan 31 00:04:01 localhost.localdomain systemd[1]: mariadb.service: Failed with result 'exit-code'.
Jan 31 00:04:01 localhost.localdomain systemd[1]: Failed to start MariaDB 10.3 database server.
So any help will be thankful even if you are new .
I just installed Mysql 5.7 on new ubuntu distribution 16.
I am trying to move Mysql Datadir into a specific Disk. I followed then
But when trying to start mysql it fails
mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: inactive (dead) (Result: exit-code) since mer. 2016-08-17 21:08:09 CEST; 10s ago
Process: 4735 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=1/FAILURE)
août 17 21:08:09 getesa systemd[1]: mysql.service: Unit entered failed state.
août 17 21:08:09 getesa systemd[1]: mysql.service: Failed with result 'exit-code'.
août 17 21:08:09 getesa systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
août 17 21:08:09 getesa systemd[1]: Stopped MySQL Community Server.
août 17 21:08:09 getesa systemd[1]: mysql.service: Start request repeated too quickly.
août 17 21:08:09 getesa systemd[1]: Failed to start MySQL Community Server.
Please help me.