If mysql won't start when using mamp MAMP
Edit MAMP settings: File > Edit Template > MySql my.cnf
Add/Edit lines in my.cnf:
[mysqld]
innodb_force_recovery = 0
^ add or change line above to innodb_force_recovery = 1 (if there isn't this line in your config you may need to add it below "[mysqld]")
Then restart servers, mysql should start as normal. Remember to revert the changes above back to 0 and then use mamp as usual