MySQL configuration file specifies the Log-error configuration item, starting an error problem

The mysqld configuration file my.cnf An [mysqld_safe] entry that was specified within the configuration block log-error , causing the mysqld service to start an error because the log file could not be found.

service mysql restart Shutting down MySQL..                                      [  OK  ]Starting MySQL.180306 16:26:49 mysqld_safe error: log-error set to ‘/var/lib/mysql/mysql.log‘, however file don‘t exists. Create writable for user ‘mysql‘.The server quit without updating PID file (/var/lib/mysql//[FAILED]caldomain.pid).

This problem is a small bug for MySQL.
The temporary processing method is to create a log-error specified empty file directly, and give the appropriate owner, group permissions.
Problem page: https://bugs.mysql.com/bug.php?id=84427
The issue has been fixed in the release 5.5.55, 5.6.36, 5.7.18, 8.0.1 .

Later, you can fix the problem by upgrading the version.

MySQL configuration file specifies the Log-error configuration item, starting an error problem