MySQL Unable to lock ibdata1 error 11 fix
目录
A bad shutdown can cause such erros on MySQL.
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
InnoDB: Error in opening ./ibdata1
For solution
mv ibdata1 ibdata1.bak
cp -a ibdata1.bak ibdata1
service mysqld restart