failing to start mysql server client after upgrading with brew (os Mojave)

Question

I just did Brew update mysql and then closed my mysql.

tried to start again and bam:

~ » mysql.server start                                                                                                                                                               
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/Johns-MBP-2.pid).

never had this issue before, was going over all the stackoverflow answers about this situation and nothing worked :\\

in the .err file I see:

InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files. Unable to lock ./ibdata1 error: 35

Answer 1

You possibly have another instance(s) of mysql running.

You can check with the command:

pgrep mysql

If it returns some id, you can kill it/them with the command below before attempting to start mysql again:

pkill mysql

---

Update:

If mysql keep spawning with a new process id, it probably means there's a mysql agent (daemon) that you need to unload first:

Check for it:

launchctl list | grep mysql

And acutally unload it:

launchctl unload "Library/LaunchAgents/$(launchctl list | grep mysql | grep -v grep | awk '{print $3}').plist"