MySQL 8: datadir
ryandesign at macports.org
Sun Oct 4 08:03:32 UTC 2020
On Oct 3, 2020, at 12:05, Murray Eisenberg wrote:
> On 3 Oct2020, at 8:00 AM,Andrew Udvare wrote:
>> Your client is trying to connect
>> /opt/local/var/run/mysql57/mysqld.sock instead of
>> /opt/local/var/run/mysql8/mysqld.sock . Your client is not finding the
>> correct socket path in my.cnf. You can specify which socket to connect
>> to manually:
>> mysql -S /opt/local/var/run/mysql8/mysqld.sock ...
>> If you are running mysql8, does /opt/local/var/run/mysql8/mysqld.sock
>> exist? It may be that your my.cnf says to put it at the old path.
> (a) No, there is no such file /opt/local/var/run/mysql8/mysql.sock !
> After loading mysql8-server, the only files in /opt/local/var/run/mysql8 are .turd_mysql8-server and mysqld.pid.
> How is that file created?
The server creates the socket file when it starts.
The file mysqld.pid presumably contains a process ID number. Is there a process currently running with that process ID number? If yes, is it mysqld? If there is no such process, or if it is not mysqld, try deleting mysqld.pid.
> (b) Manually specifying the socket gives the same kind of error as before:
> sudo port load mysql8-server
> ---> Loading startupitem 'mysql8-server' for mysql8-server
> mysql -S /opt/local/var/run/mysql8/mysqld.sock
> ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/opt/local/var/run/mysql8/mysqld.sock' (2)
Then I guess there is no such socket file, perhaps because your server has not started.
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