When I type mysql, it shows “ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysql.sock’ (2)”.
Then I try to start mysql service:
$ service mysql start
But then I get error “
No directory, logging in with HOME=/
……
MySQL Community Server 5.6.27 did not start. Please check logs for more details.
“
Then I try to find the log file. It’s located in /var/lib/mysql/bejond.err
Then I look at the log file and locate
“
InnoDB: No valid checkpoint found.
InnoDB: If this error appears when you are creating an InnoDB database,
InnoDB: the problem may be that during an earlier attempt you managed
InnoDB: to create the InnoDB data files, but log file creation failed.
InnoDB: If that is the case, please refer to
InnoDB:http://dev.mysql.com/doc/refman/5.6/en/error-creating-innodb.html
“
Then I go to the link, find the note, if the error happends on start mysql, delete all files created by InnoDB: all ibdata files and all ib_logfile files.
So I delete /var/lib/mysql/ibdata1, ib_logfile0, ib_logfile1. Then restart the service. It works!
