mysql ERROR 2002 (HY000): '/tmp/mysql.sock' 问题解决

Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

mysql: stable 8.0.16 (bottled) [pinned at 8.0.16]

brew services stop mysql
ps -ax | grep mysql

kill mysql

brew remove mysql
brew cleanup

sudo rm /usr/local/mysql
sudo rm -rf /usr/local/var/mysql
sudo rm -rf /usr/local/mysql*
sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*

launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist


下面的在我的文件夹中完全没有

subl /etc/hostconfig` 
# Remove the line MYSQLCOM=-YES-

rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /private/var/db/receipts/*mysql*

重启

sudo rm -rf /usr/local/var/mysql

Starting MySQL
./usr/local/Cellar/mysql/8.0.16/bin/mysqld_safe: line 144: /usr/local/var/mysql/jindeMacBookPro.err: Permission denied
/usr/local/Cellar/mysql/8.0.16/bin/mysqld_safe: line 144: /usr/local/var/mysql/jindeMacBookPro.err: Permission denied
/usr/local/Cellar/mysql/8.0.16/bin/mysqld_safe: line 199: /usr/local/var/mysql/jindeMacBookPro.err: Permission denied
/usr/local/Cellar/mysql/8.0.16/bin/mysqld_safe: line 144: /usr/local/var/mysql/jindeMacBookPro.err: Permission denied
 ERROR! The server quit without updating PID file (/usr/local/var/mysql/jindeMacBookPro.pid).

brew install mysql

unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp

mysqld --initialize-insecure

mysql.server start

Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

cd /usr/local/var/mysql

cat jindeMacBookPro.err  

cat jindeMacBookPro.err | grep '\[ERROR\]'

2019-05-07T11:11:09.113601Z 0 [ERROR] [MY-010273] [Server] Could not create unix socket lock file /tmp/mysql.sock.lock.
2019-05-07T11:11:09.113613Z 0 [ERROR] [MY-010268] [Server] Unable to setup unix socket lock file.
2019-05-07T11:11:09.114096Z 0 [ERROR] [MY-010119] [Server] Aborting

chmod 777 /tmp

chmod 750 mysql-files

Starting MySQL
.. SUCCESS!

ERROR 1045 (28000): Access denied for user 'jinzhang'@'localhost' (using password: NO)

We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

$ mysql_secure_installation

Set root password? [Y/n] Y
Remove anonymous users? [Y/n] Y
Disallow root login remotely? [Y/n] Y
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y  

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD COMPONENT can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD component?

Press y|Y for Yes, any other key for No: root
Please set the password for root here.

New password:

Re-enter new password:
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done!

mysql -u root -proot

Unable to connect to host 127.0.0.1, or the request timed out.

Be sure that the address is correct and that you have the necessary privileges, or try increasing the connection timeout (currently 10 seconds).

MySQL said: Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/lib/plugin/caching_sha2_password.so, 2): image not found

ALTER USER 'username'@'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';