I ma using M1 MacBook Air, and managing my tools with Homebrew.
I've installed Mysql, and it was working fine for a while, but when I've rebooted my device it just stopped working.
I don't get any errors when running brew services start mysql, but when I try brew services list MySQL is marked as stopped.
When I try to enter mysql with mysql -u user -p password I get following error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
When I run mysql.server start (as some answers suggest) I get following error:
. ERROR! The server quit without updating PID file (/opt/homebrew/var/mysql/MacBook-Air.local.pid).
I've tried many solutions, but non of them worked.
i fixed this error The server quit without updating PID on mysql version 8.0.18
try sudo chown -R mysql:mysql xx/mysql, and sudo chmod 775 xx/mysql
'xx/mysql' is your mysql home dir
Related
I tried a lot to install MySQL8 via Homebrew on Mac 10.14.5. I was running MySQL 5.7 before that and did the following: I removed MySQL completely via this tutorial: https://coderwall.com/p/os6woq/uninstall-all-those-broken-versions-of-mysql-and-re-install-it-with-brew-on-mac-mavericks
After that I run mysql and got the message that the command was not known. So I installed mysql with brew install mysql. After installation I did brew link --force mysql and got Warning: Already linked: /usr/local/Cellar/mysql/8.0.19
I edited /usr/local/etc/my.cnf and added default-authentication-plugin=mysql_native_password in the [mysqld] section. After that I restartet the service using brew services restart mysql
brew services list shows me this now:
mysql started root /Library/LaunchDaemons/homebrew.mxcl.mysql.plist
mysql#5.7 stopped
However, when I type mysql in the terminal I get this:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
The /tmp/mysql.sock does not exist.
When I change the host in the my.cnf file from localhost to 127.0.0.1 this error will change into this:
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 54
Anyone has an idea what's going on here and how I can fix it? I also googled it and found various Threads, some are saying that the permissions must be changed to this sudo chown -R _mysql:mysql /usr/local/var/mysql but this does not change anything in my case.
I upgrade OS X to High Sierra.
After upgrade, I found some services does not working correctly, which uses MySQL.
I try to connect by
mysql -u root -p
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
So I try to restart mysql service by
brew services start mysql
Could not find domain for
Error: Failure while executing; `/bin/launchctl enable gui/503/homebrew.mxcl.mysql` exited with 112.
mysql.server start
ERROR! The server quit without updating PID file (/usr/local/var/mysql/mangoui-Mac-mini.local.pid).
/usr/local/var/mysql/mangoui-Mac-mini.local.err
2018-07-27T05:32:37.570411Z 0 [ERROR] [MY-011071] [Server] /usr/local/opt/mysql/bin/mysqld: Error while setting value 'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' to 'sql_mode'
Interesting point is
sudo brew services start mysql
command works.
So I tried
sudo mysql -u root -p
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
still get same error.
Please note that brew has recently upgraded mysql to 8.0, which causes some things to break due to deprecations (in my case 'sql_mode').
If you want to stay with 8.0, you can have a look at:
https://dev.mysql.com/doc/refman/8.0/en/upgrading.html
which will guide you through.
If you (for instance for compatibility reasons) decides to stay with e.g. 5.7 you can do e.g.:
> brew services stop mysql
> brew switch mysql 5.7.21
> brew services start mysql
> brew pin mysql # Tell brew to stay on this version
To see which version you have installed you can type:
> brew list --versions mysql
Good luck! Hope this helps :-)
I just installed MySQL Ver 14.14 Distrib 5.7.22 with Homebrew on my macOS v10.13.4.
I ran the command:
brew install mysql
After the installation completed, as directed by Homebrew, I ran the command:
mysql_secure_installation
and was returned the error: Error: Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/Cellar/mysql/5.7.22/lib/plugin/caching_sha2_password.so, 2): image not found
I tried a few things like changing default_authentication_plugin to mysql_native_password in the my.cnf file but it still throws the same error.
Next I tried running:
mysql_upgrade -u root
and I was thrown the same error again mysql_upgrade: Got error: 2059: Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/Cellar/mysql/5.7.22/lib/plugin/caching_sha2_password.so, 2): image not found while connecting to the MySQL server
Upgrade process encountered error and will not continue.
Any help is appreciated.
So, I found the running process of mysqld by sudo lsof -i tcp:3306 then I killed it using sudo kill -9 <PID>.
After this I tried mysql_secure_installation again, but ran into a new error :
Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (61)
After trying a few fixes for getting mysql.sock to work, I started the MySQL server with sudo mysql.server start then went ahead with mysql_secure_installation to set password for the root user.
This worked for me finally.
Note: Homebrew asks you to first do mysql_secure_installation before starting the MySQL server for the first time but that just made me run into endless loop of errors.
Restart the mysql server to take the changes in affect and try connecting via mysql with any mysql client.
Otherwise use docker
docker run -p 3306:3306 -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -d mysql --default-authentication-plugin=mysql_native_password
mysql -uroot --protocol tcp
Try in PWD
Related a question.
Authentication plugin 'caching_sha2_password' cannot be loaded
I figured out this should be an issue with the mysql version installed. Just as above you should first find then kill the mysqld process attached on port 3306
sudo lsof -i tcp:3306
sudo kill -9 <Peocess ID>
Then upgrade the mysql installation via brew, in this case:
brew upgrade mysql
This should solve it.Running mysql after the upgrade should start your server after the installation.
e.g mysql -u root -p [your password here]
I got this error in Sequel Pro trying to connect over SSH to an AWS Ubuntu server with MySQL installed locally.
I was using a non-root MySQL user and it gave me that error. It worked when I ran it with the root user and password.
I have been setting up a new laptop for development purposes and when trying to get MySQL to run in the Terminal I get the following message:
$ mysql -u root -p
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
Can somebody please help me out here?
You may get this error because mysql server is not started. For me it solved only by starting mysql server.
to start Mysql server (for Mac OS X), command line in terminal:
sudo /usr/local/mysql/support-files/mysql.server start
or, simply go to your Mac System Preference --> MySQL --> click on start mysql..
So I installed xampp on my Linux machine running Ubuntu 14.04LTS. Now all of a sudden turns out when I try to connect to phpmyadmin it refuses to connect. I have already installed mysql separately as well but it doesn't seem to work. Any workaround for this?
The error that I get is :
MySQL said:
Cannot connect: invalid settings.
Connection for controluser as defined in your configuration failed.
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.
Any reason why this happens and solution to it?
Go to http://localhost/security/ and then click on the link http://localhost/security/xamppsecurity.php.
After that change password for superuser to 'root'.
After that open your http://localhost/phpmyadmin/
As per the comment by RiggsFolly I was running two instances of MySQL
So both mysql servers do end up messing with phpmyadmin and this is how you shutdown the external mysql server while using xampp's inbuilt mysql server to connect successfully using phpmyadmin:
Use whichmysql to find the utility that is running
Navigate to the directory where the external MySQL service is running:
$ cd /usr/bin
$ mysqladmin shutdown
This shuts down the MySQL service running if at all it is running.
$ sudo service mysql stop
This helps as well if at all it will tell you the status of the service if it is already shut down.
Now we need to stop the Xampp mysql server so we navigate to /lampp/bin and again execute the same command to shut mysql server down.
$ cd /opt/lampp/bin
$ mysqladmin shutdown
Simply restart xampp and you should be good to go.
$ sudo /opt/lampp/lampp restart
I just fell into the same error. The solution I used was, stopping all the servers of xampp, exiting the program. Starting and stoping mysql then starting xampp again
Initial procedure before starting xampp:
sudo service mysql stop
sudo /etc/init.d/apache2 stop
If it bring the error as stated in this question, then follow the procedure below.
That is:
sudo /opt/lampp/lampp stop
sudo service mysql start
sudo service mysql stop
sudo /opt/lampp/lampp start