Unable to start MySQL CLOUD9 - mysql

I can not start MySQL on cloud 9.
If I execute:
sudo mysql-ctl status
I get: MySQL is stopped
But if I execute:
sudo mysql-ctl start
It doesn't make nothing, and MySQL keep stopped.
I don't know what to do because I can not reboot. Some ideas?
Thanks!

mysql-ctl install
then
mysql-ctl cli

Related

Cannot find PID file after reinstall of mysql

I was getting an error that server quit without updating pid file. So I thought I would uninstall it and install it again.
I had installed it with homebrew last time so I did:
brew uninstall mysql
and to install it I did:
brew install mysql
Even after this however, I am still getting the same error.
$ mysql.server start
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/Tirths-MBP.fios-router.home.pid).
If this mysql like a linux binaries; Try to regen PID with mysqld_safe as :
stop server
bin>$./mysql.server stop
regen PID file :
bin>$./mysqld_safe -u youruser&
then try to start mysql as :
bin>$./mysql.server start
p.s.
...and do you have etc/my.cnf file gen-ed ? It would be more helpful you to provide logs;
Hope this helps; Report your results please;

Unable to stop MySQL on OS X 10.10

I'm starting to go nuts over this.
I setup MySQL/Apache/PHP using the tutorial by Coolest Guides On The Planet.
I'm guessing something went wrong as its not working as expected so I want to uninstall and try again.
The trouble is that I can't stop MySQL either by system preferences or command line. I keep trying suggestions on the net but so far unsuccessful.
Can anyone help?
Finally got around the autostart - Thanks to all who contributed and allowed me to see the way.
To stop the auto start I used:
sudo launchctl unload -w /Library/LaunchDaemons/com.mysql.mysql.plist
And to kill the service I used:
sudo pkill mysqld
This is what worked for me. It was listed under a different plist name:
sudo launchctl unload -w com.oracle.oss.mysql.mysqld.plist
For Mac Users
kill -9 {pid} kept restarting the process. This was because I had MySQL Server running. On OSX I had to:
1- System Preferences.
2- Search for mysql.
3- Press the Stop MySQL Server button.
got it from a github issue, and it solved my problem
https://github.com/docker/compose/issues/4950#issuecomment-407145733
brew services stop mysql#5.6 worked for me, when all else failed.
I also got the same problem, unable to stop MySql Sever through system preferences on macOS High Sierra.
I did brew uninstall mysql on my terminal window.
now I am able stop stop MySql Sever through system preferences.
Since mysql was installed on my mac 2 ways binary as well as home brew.
in terminal
kill `pgrep mysqld`
this kills the mysqld process.
If you used brew then you can find out which version you are using by:
launchctl list|grep mysql
this will print something like
92555 0 homebrew.mxcl.mysql#5.7
In my case I'm using mysql#5.7
You can stop using:
brew services stop mysql#5.7
Try with issuing the following command in command line:
ps -xo pid,ppid,stat,command | grep mysqld
It will show you your processes, with their parent ID in the second column. Look for the mysqld and it's parent process. After locating it, issue a:
sudo kill pid
where pid is mysqld's parent process ID.
EDIT
If you want to stop the process from launching again, try:
sudo launchctl unload /System/Library/LaunchDaemons/mysqld.plist
I've installed mysql via homebrew, but stop mysql by using mysql stop command, mysql restart right now.
try to execute command as follow if your mysql was installed via homebrew
brew services stop $(brew list | grep mysql)

mysql won't start for xampp for mac users

======
Mysql cannot start, i am thinking maybe it was conflict with other mysql i have install in my computer.
How to properly config mysql?
I have tried to kill the mysql task, or sudo start it in my terminal
The following steps worked for me, assuming you are using Yosemite:
Step 1.
Delete \Applications\Xampp
Step 2.
Delete usr\local\var\mysql folder
Step 3.
Reinstall Xampp 5.5.19.
Step 4. Run the following commands in terminal to kill the processes, then restart the servers in Xampp.
sudo killall httpd
sudo killall mysqld

MySQL connection error on Mac OS X 10.8.5

I have installed MySQL using Homebrew on my Mac running OS X 10.8.5. Whenever i start my mac, and try to connect to MySQL i get the following error
Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) (Mysql2::Error)
I then run the following commands and then im able to connect
mysqld stop
mysql.server start
But on restarting my computer again i get the same error as above and have to run those commands again. Any way to fix it permanently ?
Thank You.
If you like to have the mysql server start on startup and to do, you would run the following commands:
('5.6.10' is mysql version number. if you use another version, change it)
mkdir -p ~/Library/LaunchAgents
cp /usr/local/Cellar/mysql/5.6.10/homebrew.mxcl.mysql.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' [duplicate]

This question already has answers here:
Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
(43 answers)
Closed 21 days ago.
I installed MySQL on Mac OS X Mountain Lion with homebrew install mysql, but when I tried mysql -u root I got the following error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
What does this error mean? How can I fix it?
You'll need to start MySQL before you can use the mysql command on your terminal. To do this, run brew services start mysql. By default, brew installs the MySQL database without a root password. To secure it run: mysql_secure_installation.
To connect run: mysql -uroot. root is the username name here.
This happened after the homebrew install and occurs due to permission issues. The following commands fixed the issue.
sudo chown -R _mysql:mysql /usr/local/var/mysql
sudo mysql.server start
It's probably because MySQL is installed but not yet running. [...] To verify that it's running, open up Activity Monitor and under "All Processes", search and verify you see the process "mysqld".
You can start it by installing "MySQL.prefPane".
The above quote is from the blog Obscured Clarity, "Install MySQL on Mac OS X", where you can also find the complete tutorial that I found most helpful.
Run: brew info mysql
And follow the instructions. From the description in the formula:
Set up databases to run AS YOUR USER ACCOUNT with:
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
To set up base tables in another folder, or use a different user to run
mysqld, view the help for mysql_install_db:
mysql_install_db --help
and view the MySQL documentation:
* http://dev.mysql.com/doc/refman/5.5/en/mysql-install-db.html
* http://dev.mysql.com/doc/refman/5.5/en/default-privileges.html
As others have pointed out this is because MySQL is installed but the service isn't running. There are many ways to start the MySQL service and what worked for me is the below.
To start the service:
Go to "System Preference"
At the bottom pane there should be MySql icon.
Double click that to launch the 'MySQL Server Status' and press the button 'Start MySQL Server'
My env:
Mac Yosemite 10.10.3
Installed Package: /Volumes/mysql-advanced-5.6.24-osx10.8-x86_64
Solutions revolve around:
changing MySQL's permissions
sudo chown -R _mysql:mysql /usr/local/var/mysql
Starting a MySQL process
sudo mysql.server start
Just to add on a lot of great and useful answers that have been provided here and from many different posts, try specifying the host if the above commands did not resolve this issue for you, i.e
mysql -u root -p h127.0.0.1
The designated data directory /usr/local/var/mysql/ is unusable. You can remove all files that the server added to it.
MacOS:
$brew services stop mysql
$brew services list
$brew uninstall mysql
$brew install mysql
$brew postinstall mysql
If Any error found then run those cmd
! Warning: this will delete any databases on this server:
$sudo rm -rf /usr/local/var/mysql
$sudo rm /usr/local/etc/my.cnf
$brew postinstall mysql
$brew services start mysql
$mysql_secure_installation
Completed All process of secure installation then run
$mysql -u root -p
Congratulations you’ve just set up mysql!
Warning - this method will remove all of your databases in the /usr/local/var/mysql folder
I had MySQL installed with Homebrew, and the only thing that fixed this for me was re-installing MySQL.
On my company laptop, I didn't have permission to uninstall MySQL from my computer via Homebrew:
$ brew uninstall mysql --ignore-dependencies
Uninstalling /usr/local/Cellar/mysql/8.0.12... (255 files, 233.0MB)
Error: Permission denied # dir_s_rmdir - /usr/local/Cellar/mysql/8.0.12
So instead, I removed and reinstalled MySQL manually:
$ sudo rm -rf /usr/local/Cellar/mysql
$ brew cleanup
$ sudo rm -rf /usr/local/var/mysql
$ brew install mysql
And that worked!
Looks like your mysql server is not started. I usually run the stop command and then start it again:
mysqld stop
mysql.server start
Same error, and this works for me.
Below I'm including the latest instructions from brew install mysql so newer searches for this issue can benefit:
$ brew install mysql
==> Downloading https://homebrew.bintray.com/bottles/mysql-5.6.26.yosemite.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring mysql-5.6.26.yosemite.bottle.1.tar.gz
To connect:
mysql -uroot
To have launchd start mysql at login:
ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
Then to load mysql now:
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
Or, if you don't want/need launchctl, you can just run:
mysql.server start
In my case I loaded mysql now via launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist and was then able to launch $ mysql and be on my way.
This problem related to /usr/local/var/mysql folder access, I remove this folder and reinstall mysql.
uninstall mysql with brew :
brew uninstall mysql
sudo rm -r /usr/local/var/mysql
brew install mysql#8.0
mysql -u root
This solution works fine for me!
BUT YOU LOST ALL YOUR DATABASES! WARNING!
This fixed my issue when I restarted the mysql service. Just run:
brew services start mysql
In my case it was simply a matter of deleting a lock file.
sudo rm -f /tmp/mysql.sock.lock
Ough, that took me a while to figure out. I saw it in a comment. After installing mysql using brew, and starting the service (perhaps using sudo brew services start mysql) then run:
$ mysqld
And MySQL should be running for your thereafter.
For me it was simple as running:
/usr/local/opt/mysql/bin/mysqld_safe
instead of mysqld
I went through this issue and I managed to run mysql server using below solution
Install mysql through .dmg(https://dev.mysql.com/downloads/mysql/5.7.html), you will get mysql service panel in system preferences then start mysql from the panel and try
mysql -u root -p
Images attached for reference
just hit "brew services start mysql" in terminal
I found the solution to my problem. It was indeed because my MySQL server was not running.
It was caused by MySQL not being correctly set up on my machine, thus not being able to run.
To remedy this, I used a script which installs MySQL on Mac OSX Mountain Lion, which must have installed missing files.
Here is the link: http://code.macminivault.com/
Important Note: This script sets the root password as a randomly generated string, which it saves on the Desktop, so take care not to delete this file and to note the password. It also installs MySQL manager in your system preferences. I'm also not sure if removes any existing databases, so be careful about that.
After working on this for several hours what worked for me was
go to /etc/mysql/ and edit the my.cnf file. Add the following
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
AFTER USING ALL THE ABOVE SOLUTIONS, NOTHING WORKED FOR ME BUT THIS WORKED.
I you have installed MySQL using HomeBrew then check System Preferences > MySQL in your mac that MySQL Server is stopped if it is running stop it by clicking on Stop MySQL Server and start MySQL from terminal writing the command mysqlserver.start.
If it doesn't work you can also try:-
If you have also installed MySQL workbench then just uninstall MySQL workbench and MySQL and after that install MySQL first and then MySQL workbench.
I would recommend you to run
mysql.server start
before going to
mysql -u root -p
so as to make sure that the mysql server is running before trying to login into it
This happens many times what you start/restart a machine where by no mysql server is running.
I keep coming back to this post, I've encountered this error several times. It might have to do with importing all my databases after doing a fresh install.
I'm using homebrew. The only thing that used to fix it for me:
sudo mkdir /var/mysql
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
This morning, the issue returned after my machine decided to shut down overnight. The only thing that fixed it now was to upgrade mysql.
brew upgrade mysql
After trying many solutions, seems like the one that finally did the trick was to connect by IP. No longer file sockets getting deleted randomly.
Just update your MySQL client config (e.g. /usr/local/etc/my.cnf) with:
[client]
port = 3306
host=127.0.0.1
protocol=tcp
Probably you might have faced some issues during the homebrew mysql installation and mysql services might not be running. If that is the case, then it might be worth trying below steps to reinstall mysql properly and then try to connect.
sudo chown -R $(whoami) /usr/local/var
sudo chown -R $(whoami) /Library/Caches/Homebrew
brew uninstall mysql
brew install mysql
mysql.server start
mysql -uroot
Homebrew will absolutely never repair the permissions using a standard reinstall, and chasing down which folder/file is corrupted will take longer than it is worth.
In this case - blow away the mysql install manually and reinstall via homebrew. Takes about 2 minutes.
cd /usr/local/var
sudo rm -rf mysql
brew install mysql
Homebrew installs mysql insecure by default, so if you want a password:
mysql_secure_installation
Then fire it up.
mysql -uroot
After installing MySQL on my mac m1 macOS Monterey, using brew install mysql I got this info:
[System] [MY-013169] [Server] /opt/homebrew/Cellar/mysql/8.0.27_1/bin/mysqld (mysqld 8.0.27) initializing of server in progress as process 3624
[ERROR] [MY-010457] [Server] --initialize specified but the data directory has files in it. Aborting.
[ERROR] [MY-013236] [Server] The designated data directory /opt/homebrew/var/mysql/ is unusable. You can remove all files that the server added to it.
[ERROR] [MY-010119] [Server] Aborting
[System] [MY-010910] [Server] /opt/homebrew/Cellar/mysql/8.0.27_1/bin/mysqld: Shutdown complete (mysqld 8.0.27) Homebrew.
and this warning:
Warning: The post-install step did not complete successfully You can
try again using: brew postinstall mysql
After that I try to start MySQL using brew services start mysql, and I got this error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket
'/tmp/mysql.sock' (2)
I managed to fix it using:
> rm -rf ~/opt/homebrew/var/mysql/
> brew postinstall mysql
Now you can connect with mysql -uroot or mysql -uroot -p.
only this has made the trick for me
brew services start --all
(after trying all answers)
I managed to solve this issue by changing localhost to 127.0.0.1
For my case, just specify host as 127.0.0.1, instead of localhost:
$ bin/mysql -uroot -p -h127.0.0.1
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.26
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
if you are using Kali linux you might want to specify the host explicitly
do that with
mysql -h 127.0.0.1 -u root
where 127.0.0.1 is your localhost