[FIXED] Mysql - unknown variable 'table_cache=64'

Issue

I use Mamp Pro 3. I upgraded Mamp's MySql to 5.6.24 using this script https://gist.github.com/tobi-pb/b9426db51f262d88515c.

After that I ran the Mamp Pro and MySql cannot be started. So I looked the mysql_error.log and found the following error:

2015-06-15 01:24:55 13139 [ERROR] /Applications/MAMP/Library/bin/mysqld: unknown variable 'table_cache=64'
2015-06-15 01:24:55 13139 [ERROR] Aborting

After I google about this error, I get to know that I have to delete 'table_cache=64' variable from my.cnf (MySql Configuration) file. So I deleted this variable from /Applications/MAMP/tmp/mysql/my.cnf file.

But the problem is that the same error still occurs when I start the MySql again. So I looked at the my.cnf file, 'table_cache=64' re-appears automatically again. I deleted it again but it automatically appeared again when I start the MySql.

So how should I solve this 'table_cache=64' problem?

Solution

There may be people who also experience this problem like me. After 3 full days of trying with no success, I gave up to solve this problem with proper way.

I uninstall MAMP Pro 3 and reset Mysql root user's password and then I run my websites with MAMP free version. All the problems gone and Mysql version successfully upgraded.

Answered By - Steve.NayLinAung