Question

Another MySQL daemon already running with the same unix socket.

Posted July 12, 2015 11.7k views
Linux BasicsCentOSMySQLPHP

Hi
my droplet just restarted by DO support with suddenly and i receive message that the mysqld not able to run with this error message “Another MySQL daemon already running with the same unix socket.”
in this situation i need to login to my server and run for this command

 mv /var/lib/mysql/mysql.sock /var/lib/mysql/mysql.sock.bak
service mysqld start

how to put this code auto run when the server is starting? i’m using centos 6 thanks

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agus.halim
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JustSomeTech July 12, 2015

If you like to run those commands on reboot/boot you can create a script and let Sys-V run it. To do so, create a script in /etc/init.d and call it anything you like. For example I’ll use runmysql.sh
In that script paste your lines and then save it. Then run the following command to get it running on boot:

update-rc.d <scriptname> defaults

So here it would be update-rc.d runmysql.sh defaults

But I suggest rather than trying to bypass the error with a script, to fix the error. You can use this script fix ofcourse temp. , but its better to try to find out why it doesn’t run at boot and fix this. Hope this will help you

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