I am having an issue where MySQL isn\'t starting on my QNAP NAS.
I found this first by not being able to log in through phpMyAdmin - was getting error:
I know this is an older post, but I ran into the ERROR! MySQL server PID file could not be found! when trying to start MySQL after making an update to my.cnf file. I did the following to resolve the issue:
Deleted my experimental update to my.cnf
Deleted the .net.pid and .net.err files.
delete /usr/local/var/mysql/****-MBP.airstreamcomm.net.*
ps -ax | grep mysql
kill ****
mysql.server start