Question

On my server two websites are hosted (say abc.com and test.xyz.com)

I was trying to rebuild the DB for test.xyz.com and in the process

1.I dropped the database related to it.
2.stopped the mysql ( /etc/init.d/mysqld stop)
3.moved ibdata1 file (/var/lib/mysql/ibdata1) to /tmp/
4. tried to start the mysql

but it is not getting started and on trying to connect to database using terminal, i am getting Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'.

I tried to move back ibdata1 file from /tmp/ to /var/lib/mysql but there was already a file ibdata1. Its a wonder but now website is not working since NO DB connection.

Both the sites stopped working now. Please help

and-
/etc/init.d/mysqld status gives – mysqld (pid 31905) is running…

Thanks

Answer 1

Quick fix:

• Stop your server
• Delete the newly created ibdata1 file in /var/lib/mysql. This file is created automatically when it doesn’t exist. Also note, it most likely contains the data for all your databases on the server.
• Copy the ibdata1 from your tmp folder back to /var/lib/mysql
• Start server again

I’ll explain later, when I have more time, but I think it might be urgent for you to have that quick fix 🙂

UPDATE: (From comments) You can’t connect, okay, the cause for this could be anything. I think the best thing to do (you don’t have much to loose anyway) is you simply kill mysql.

Do

ps aux | grep mysqld

Then

kill -9 <the processnumber of mysql from the previous command>

Then do as I said earlier. And never ever simply move ibdata1 again 🙂

Also I’m voting to close as offtopic. Then it’s going to be moved to dba.stackexchange.com which is a partner site that is more dedicated to administrating database servers. You might get better help there.