improper killing of mysqld - now not starting

Question

I stopped mysqld by killing the process id, and then deleted mysqld.sock file also. Now, mysqld is not starting.

I know there is some data corruption. But now I nee

Answer 1

Wow. I had this issue because it was an early morning and my brain wasn't working. I was doing the following:

 sudo mysqld -u root -p

when I should have been doing:

 sudo mysql -u root -p

Hope this helps someone else who was having a rough morning like me.. hahah

Answer 2

You need to restore the innodb data files.

# cd /var/lib/mysql
# mkdir bak
# mv ibdata1 bak/
# mv ib_logfile* bak/
# cp -a bak/ibdata1 ibdata1
# cp -a bak/ib_logfile* .
# rm -rf bak
# service mysqld restart

Reference: http://notesonit.blogspot.hk/2013/05/innodb-unable-to-lock-ibdata1-error-11.html