How do you start a MySQL server on linux? - mysql

Pretty simple question here. I just want a SQL database on my version of Kali linux so I can practice SQL.
I opened the command line and entered tried to start mysql and get an error.
> mysql -u root
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'
I also made sure it was already installed using apt-get.
What are the steps I need to take to be able to make a database with tables and data that I can query?

I don't know about Kali, but on Ubuntu it would be
$ sudo service mysql start
Once that command returns, the mysqld service has started, so you can use the mysql client to connect to it.
Of course, you also have to make sure you have the mysql-server package installed, not just mysql-client and mysql-common, and that you've initialized the database instance. Complete post-installation instructions can be found in the official documentation, but the short version is
Make sure the installer has created the mysql user account. This is the account that will "own" the server process once it starts.
Change to your data directory. (I used the installer's default of /var/lib/mysql; you can change this by editing my.cnf.)
As root, execute the server daemon with the --initialize switch. Check whereis to determine the correct path, then
$ sudo /path/to/mysqld --initialize --user=mysql
This command will twiddle itself for a while, then display an automatically-generated password and exit. Once the command returns, the database instance has been initialized and the system tables created. You can now start the database instance normally (using service start), then log in as the database user root (which is not the same as the system user root) using the password from above, then change your password, create a new database user, log in as that user, create a user database, and start creating tables.
Again, the official documentation is the place to look for this; if any of the instructions in the official documentation differ from my instructions, you should ignore me and follow the official documentation's instructions.

If sudo service mysql start doesn't work for you, please try running mysqld_safe and don't kill the process. Use another tab to check the status of mysql service. This should solve your mysqld.sock issue.
If it doesn't work out, then please edit your my.cnf file and add the following:
socket=/var/lib/mysql/mysql.sock
And the permissions,
sudo chmod -R 755 /var/lib/mysql/
Hopefully, this should do it.

On my version of kali (2022-rolling), even though it's installed as MySQL, it's run as mariadb. To start it is:
sudo /etc/init.d/mariadb start

Try this
sudo service mysql start

Related

Cannot connect to MySQL Workbench on mac. Can't connect to MySQL server on '127.0.0.1' (61) Mac Macintosh

Cannot connect to MySQL Workbench on mac. I get the following error: Could not connect, server may not be running. Can't connect to MySQL server on '127.0.0.1' (61)
The help would be appreciated.
Thank You!
Ran into a similar issue and my problem was that MySQL installed itself configured to run on non-default port. I do not know the reason for that, but to find out which port MySQL is running on, run the following in MySql client:
SHOW GLOBAL VARIABLES LIKE 'PORT';
Go to System preferences -> MySql and check the state of your MySql instance.
There may be one or multiple reasons if you are not able to connect to MAC OS X MySQL server with MySQL-workbench.
When you press 'test connection' you might see this error. This could be explained briefly if you go step by step through 'Configure server management..'
On the basis of the red crosses you can filter out the real problem.
The most common problems are associated with the installation of MySQL-server. Few people either forget to install the server prior to installing MySQL-workbench. Some others would install a part of the product. Please check whether you have also installed all the 3 parts that comes with the MySQL-Server dmg(disk image) file which contains mysql-server package. Those 3 parts are: MySQL server, preference pane and startup item.
Note: If you haven't selected preference pane then you won't be able to start mysql server instance from the System preferences.
After you make sure that you have installed each item then you can check server instance of your native mysql-server. Open System preferences from dock and click MySQL. Then click Start MySQL Server to start the server instance. If the server instance is stopped, then MySQL-workbench won't be able to connect to the MySQL server.
If you are still facing issue, then you need to check the port of the connection which you are making. Default port is '3307' and NOT '3306'. You can check it with using the following command in mysql terminal:
SHOW GLOBAL VARIABLES LIKE 'PORT';
Please note that this process helps you to connect to the local instance. If you have to connect to a remote server, then you have to enter that specific IP and Port. Contact your server's administrator if you are facing the issue. As this question specifically states that the problem is related to connecting to the local instance, I am not writing checks that you may need to ensure.
This steps are all in the terminal:)->source
Step make sure your server is running:
sudo /usr/local/mysql/support-files/mysql.server start
Check MySQL version. "This also puts you in to a shell interactive dialogue with mySQL, type q to exit."
/usr/local/mysql/bin/mysql -v
Make your life easier: "After installation, in order to use mysql commands without typing the full path to the commands you need to add the mysql directory to your shell path, (optional step) this is done in your “.bash_profile” file in your home directory, if you don’t have that file just create it using vi or nano:"
cd ; nano .bash_profile
paste in and save:
export PATH="/usr/local/mysql/bin:$PATH"
"The first command brings you to your home directory and opens the .bash_profile file or creates a new one if it doesn’t exist, then add in the line above which adds the mysql binary path to commands that you can run. Exit the file with type “control + x” and when prompted save the change by typing “y”. Last thing to do here is to reload the shell for the above to work straight away."
source ~/.bash_profile
mysql -v
"You will get the version number again, just type “q” to exit."
Check out on which port the server is running:
in your terminal type in: mysql
and then
SHOW GLOBAL VARIABLES LIKE 'PORT';
use everytime a semikolon in the mysql client (shell)!
now you know your port and where you can configure your server(in the terminal with mysql shell/client). but for a successful connection with MySQL Benchmark or an other client you have to know more. username, passwort hostname and port. after the installation the root user has no passwort so set(howtoSetPW) the passwort in terminal with mysql shell/client. and the server is running local. so type in root, yourPW, localhost and 3007. have fun!
Try restarting the mysql or starting it if it wasn't started already. Type this within terminal.
mysql.server restart
To auto start go to the following link below:
How to auto-load MySQL on startup on OS X Yosemite / El Capitan
In my case I had a previous mySQL server installation (with non-standard port), and I re-installed to a different directory & port. Then I got the same issue (in windows). To resolve, you click on home + add new connection.
If you need to know the port of your server, you can find it when you start My SQL command line client and run command status (as below). In windows it is via All Programs -> MySQL -> MySQL ServerX.Y -> MySQL X.Y Command Line Client
I had the same issue, I solved this with the following steps:
Install the MySql (DMG) from this link
If the mysql package comes with the file name "mysql-5.7.13...." and
"MySql.prefPane" then your life is really easy.
Just click on "mysql-5.7.13...." and follow the instructions.
After the installation is done, click on "MySql.prefPane" and checkout "Only
for this user" in the popup. We use "MySql.prefPane" to start the mysql
server as this is really imp because without this you will end up having
errors.
Click on Start MySql Server in the next dialog box.
OR
If you don't see "MySql.prefPane" in the package then follow these steps:
Click on package "mysql-5.7.13...." and this will show you one password as
soon as installation is done. That password is use to start the connection.
You can change it. I will let you know in a while.
After installation save the password (this is really important - you'll need it later), open terminal.
$ cd /usr/local/mysql/bin/
$ ./mysql -u root -h localhost -p
And then type the password from above. This should start mysql>
To change the password:
$ cd /usr/local/mysql/bin/
$ ./mysqladmin -u root -p password 'new_password'
Enter Password: <type new password here>
$ ./mysql -u root -h localhost -p
... and log in with the new password.
After this you can go to MySql workbench and test connection. It should connect.
brew services start mysql defualt set --bind-address=127.0.0.1 with /usr/local/Cellar/mysql/5.6.27/homebrew.mxcl.mysql.plist,so replace --bind-address=127.0.0.1 with --bind-address=* or --bind-address=0.0.0.0
for mac : check the compatible version of mysql server in workbench>preference>MySql
if it's the same version with your mysql server in: cd /usr/local/
I am using those commands on MacOs after getting the same error
sudo /usr/local/mysql/support-files/mysql.server start
sudo /usr/local/mysql/support-files/mysql.server stop
sudo /usr/local/mysql/support-files/mysql.server restart
I had the same problem. I removed mySQL completely, and reinstall it using homebrew.
I had same problem, but it worked for me.
check if you have mysql installed
If you don't have mysql installed, download from this link: https://dev.mysql.com/downloads/mysql/
follow this instructions to install
https://dev.mysql.com/doc/mysql-osx-excerpt/5.7/en/osx-installation-pkg.html
You can test the connection without any problem.
(Sorry for my english, I agree fix me please)
I Hope I've helped.
Greetings.
I ran into the same scenario
I opened "System Preferences", clicked "MySQL", then clicked "Initialize Database" button. I entered a new password and saved it in a safe place.
After that i restarted the MySql Instance (in the System Preferences dialog as well).
After that i opened MySqlWorkbench and opened the default connection, entered the password i set before and: Viola, i can do whatever i want :-)
I had this same issue on Monterey. Make sure you're selecting the correct download according to your processor architecture.
Community download processor architecture
Also, for the Connection Method use the Local Socket/Pipe
connection method
Dropping this to share my experience.
I had the same problem and realise I didn't start MySql server.
The steps below shows how I was able to login:
To start your server, Go to Preference and find MySql.
Click on the instance tab to start the server
Afterward, return back to Mysql Workbench to start the Local Instance and you'll be connected.
Have fun !
I had similar issues in Mac OS Catalina and the easiest way to solve it is by downloading HOMEBREW package manager for mac. Follow the steps to install HOMEBREW and mysql server.
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
$ brew install mysql
$ brew tap homebrew/services
$ brew services start mysql
mysqladmin -u root password 'yourpassword'
Now try using mySQLworkbench it should work.

ERROR 2003 (HY000): Can't connect to MySQL server on localhost (10061)

I installed MySQL on Microsoft Windows 8 Using a noinstall Zip Archive. But when I tested by executing the following commands on windows prompt, the above error showed up.
C:\> "C:\MySQL\bin\mysqlshow"
C:\> "C:\MySQL\bin\mysql" test
You don't need to restart your windows. The easiest way to achieve this is
Go to <Extracted folder location>/bin/
Run mysqld (service)
close the cmd prompt
Run mysql.exe or the better way to do is add the location to PATH environment Variable
Go to Run type services.msc. Check whether MySQL services is running or not. If not, start it manually. Once it started, type mysqlshow to test the service.
Go to bin directory copy the path and set it as a environment variable.
Run the command prompt as admin and cd to bin directory.
Run command : mysqld –install
Now the services are successfully installed
Start the service in service windows of os
Type mysql and go
Though it is an old question, I am adding my answer in it, because the solution that worked for me on Windows 7 as an admin user, is missing in the answers' list. Though my solution is for installed MySQL, I am putting it for those who search for a solution for this error message. Here it is:
Click on the Windows 7 start button and type taskmgr in the search bar
Right click on the taskmgr program icon and select Run as administrator
In the Task Manager window, go to the Services tab
Right click on the MySQL service and click Start Service
The solution that worked for me is:
Downloaded mysql-8.0.22-winx64.zip file
Extracted the zip file
Moved the extracted folder to C:/Program Files
Opened cmd.exe as admin
Navigated to the directory cd C:\Program Files\mysql-8.0.22\mysql-8.0.22-winx64\bin
mysqld -install (Service successfully installed)
mysqld --initialize (no prompt)
Opened services.msc
Found MySQL
Right-click and start
I was stuck on this same issue for what felt like an eternity.
My problem was: I was running mysql from MAMP on port 8889, but when trying to connect to mysql from my command line, it was expecting port 3306. I was running out of ideas, so I tried:
mysql --port 8889
and happiness ensued:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.34-log MySQL Community Server (GPL)
Go to Run type services.msc. Check whether MySQL services is running or not. If not, start it manually.
Run your cmd as administrator.
What you will see is like this:
c:\windows\system32>
Go to your bin location by using cd..
like C:\mysql\bin (my location of bin in my computer is what you are seeing so chose yours correctly)
Run:
$ C:\mysql\bin>mysql --install
Service successfully installed.
Then run:
$ C:\mysql\bin>NET START MySql
The MySql service is starting
The MySql service was started successfully
Then the last step is running:
C:\mysql\bin>mysql -u root - p admin
It will ask for password don't enter anything first time
because it will use blank, and just press enter you are done.
And later you can set password too.
I have a windows 8.1 machine and mysql was not running at all even after trying to start mysqld with no error logs. This solution worked for me:
start cmd in admin mode
type in "net start mysql"
close current cmd window and open new cmd window
type in "mysql"
The mysqld service should now be available.
Had this issue in Windows 10 and MySQL 8. Resolved by following steps:
Searchbar(bottom left) > Task Manager > Run as administrator > Services > MySQL80
Well that could have some reasons.
THe first one is that the MySQL server/service not started.
If he is started you should check out the logfiles, and make sure there are no problems.
You could also uninstall the MySQL service and install XAMPP.
With XAMPP it is easier to manage this services.
Despite that my server was running, I had the same problem.
I found out that it was the port. So you need to specify the port:
mysql -u user -p --port 0000
The port on your machine may be different. To find out on which port mysql is running open the mysql ini file and look for port=. A port often used is 3306.
Example how to log on to mysql
mysql -u root -p --port 3306
Test if the server is running. You can use netstat for this. See https://serverfault.com/questions/260239/unable-to-connect-to-mysql-through-port-3306
If it is running, it may be the firewall. You can turn that off to test if that is the problem.
See the following manual to install Mysql as a service: https://dev.mysql.com/doc/refman/5.5/en/windows-start-service.html
First of all, you need to ensure the port number on which the server is running. Then you can run
mysql -u username -p --port portNumber
on the command line
Executing the mysqld command can solve your problem.
My SQL version is 5.7.
If you're using the no install zip, you need to execute mysqld.exe first to start the service, and then execute mysql.exe to open your connection.
The no install is nice, but if you intend to do any serious work with MySQL, you may want to consider either using the MSI to do a proper installation, or if you're doing web development work give XAMPP a try.
Check Mysqld.exe file is in your bin folder. if it is not there , just copy that file from any other computer and paste it on your bin folder.Just double click. Then run mysql.its solved
This error is flashed when we are trying to open mysql with out stating the service.
Open cmd prompt
to start the service type
mysqld --console
This will start the mysql service
Don't close this cmd prompt and open a new cmd prompt and
type
mysql -u root -p
Then enter ur password
Make sure your mysql is running in default port (3306) , if you are running mysql with different port (for example: 3307), you must specified the port number while connecting to the server.
If your port is different than default port, then try with this command.
mysql -u <username> -p --port<port number>
For eg:
mysql -u root -p --port 3307
Go and search Services in Windows
Now search Mysql. Right Click on it. By Default it's startup type will be 'Automatic'. Click on Properties on right clicked menu.
You will find startup type Switch it to -> Manual So that We can start and stop by our choice.
Now Get Back and Right Click to Mysql on Services and Click Start.
Now Mysql has started successfully
To get started
Start Mysql Shell
& type command
shell.connect({host: 'localhost',user: 'root'})
Now type password
To type sql commands:-
/sql
I had the same problem. I tried all of the answers above (and some from other websites). In the end, my issue was that my cache wasn't configured. I found that info in my error log and fixed it by changing the line in the file:
C:\MAMP\bin\apache\conf\extra\http-ssl.conf
There I removed the double quotes from the line:
SSLSessionCache "shmcb:/some/example/path/ssl_scache(512000)"
to:
SSLSessionCache shmcb:/some/example/path/ssl_scache(512000)
and saved with Ctrl+S and closed the file.
Here's the link that helped me:
https://wiki.apache.org/httpd/SSLSessionCache
I faced the same problem couple of times and each time the reason was different:
The solution that worked first time was that by "Abhishek Oza" which is same as that of "amey91" (see above)
The second time, my server was on a different port number than the default one(3036),so i was not able to connect.So I had to specify
the port number explicitly for making the connection which you can do
simply by writing: "mysql --host=127.0.0.1 --port=8081(specify your
port number here) mysql -u root -p"
In my case, which was a manual install using the .zip file.
I solved this by specifying the nonstandard MySQL and Data install locations in a my.ini.
https://dev.mysql.com/doc/refman/8.0/en/windows-create-option-file.html
Then I needed to run the data directory initialisation commands:
https://dev.mysql.com/doc/refman/8.0/en/data-directory-initialization-mysqld.html
Then running:
net start mysql
There is a possibility that your installation of MYSQL got corrupted. The best thing you can do is to search for MYSQL INSTALLER on your system and then run it again.
It will not download the mysql server again, it will just help you to set it up.
After that, edit your environment variables path and add the bin folder of your mysql to it.
By now, it should work.
In my case I have 2 different version of mysql in Windows OS and I solved the my problem by bottom step:
first stop all mysql service.
I create one config file in C:\mysqldata.cnf with bottom data(my mysql is in "C:/mysql-5.0.96-winx64" directory ):
[mysqld]
datadir = C:/mysql-5.0.96-winx64/data
port = 3307
then I run bottom command in cmd:
C:\mysql-5.0.96-winx64\bin\mysqld --defaults-file=C:\mysqldata.cnf --console
above step reference
then I create txt file in C:\resetpass.txt with bottom data:
UPDATE mysql.user SET password=PASSWORD('ttt') WHERE user='root';
then run mysqld with bottom command:
C:\mysql-5.0.96-winx64\bin\mysqld --init-file=C:\resetpass.txt --install mysql2 --console
net start mysql2
after these step you have one mysql service(with name mysql2) than run with port 3307.
I have 2 version of mysql with different user management tables(in version 5.0.96 user table difference with 5.5 version because of that I must be change table folder in first step)
you can run other mysql service with other port now(and you can run this steps with different datadir, service name and port for it again)
First make sure you have installed MYsql+Sqlyog(if you are using it.).
Start Registry Editor (Regedt32.exe).
Locate the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
On the Edit menu, click Add Value, and then add the following registry value:
Value Name: MaxUserPort
Data Type: REG_DWORD
Value: 65534
This sets the number of ephemeral ports available to any user. The valid range is
between 5000 and 65534 (decimal). The default value is 0x1388 (5000 decimal).
On the Edit menu, click Add Value, and then add the following registry value:
Value Name: TcpTimedWaitDelay
Data Type: REG_DWORD
Value: 30
This sets the number of seconds to hold a TCP port connection in TIME_WAIT state before
closing. The valid range is between 30 and 300 decimal, although you may wish to check
with Microsoft for the latest permitted values. The default value is 0x78 (120 decimal).
Quit Registry Editor.
Reboot the machine.
I will advise to use first check if my.ini exist in mysql folder in c drive or in windows folder
mysqld -install (Service successfully installed)
mysqld --initialize (no prompt)
Also another advise is not to use mysql 8, since it is not compatible with wordpress or any other opensource yet, there are lot of changes between version 5 and version 8, so if you are using mysql please use version 5.x.
Steps to resolve the problem ->
Go to command prompt and at root of c (c:\ if environment variable-path is set)
type -> c:\>mysqld -install.
Then type -> c:\mysqld --initialize
Now create one .txt file (here in our example we are taking init.txt) at root of mysql(may vary according to your directory) ->c:\MySQL\init.txt.
Now open that .txt file(init.txt) and write in it ->
5.open Run console and write -> Services.msc
6.Then Services window will be open ,there select MYSQL,Double click It and press start
7.Finally open new Command prompt window and type at root of c (c:) ->c:\>mysqlsh
due to this shell will execute and here you are ready to go....
mysql -u root --port 3308
this one help me
port number from phpmyadmin default port is 3306

Can't connect to local MySQL server through socket homebrew

I recently tried installing MySQL with homebrew (brew install mysql) and when I try to run it I get the following error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
There is no /tmp/mysql.sock nor a /var/lib/mysql.sock.
I've searched and haven't found any mysql.sock file.
How can I fix this?
When you got the server running via
mysql.server start
you should see the socket in /tmp/mysql.sock. However, the system seems to expect it in /var/mysql/mysql.sock. To fix this, you have to create a symlink in /var/mysql:
sudo mkdir /var/mysql
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
This solved it for me. Now my phpMyAdmin works happily with localhost and 127.0.0.1.
Credit goes to Henry
Warning, this will wipe your databases, take a backup if you wish to keep them
I had some directories left from another mysql(8.0) installation, that were not removed.
I solved this by doing the following:
First uninstall mysql
brew uninstall mysql#5.6
Delete the folders/files that were not removed
rm -rf /usr/local/var/mysql
rm /usr/local/etc/my.cnf
Reinstall mysql and link it
brew install mysql#5.6
brew link --force mysql#5.6
Enable and start the service
brew services start mysql#5.6
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.
Try to connect using "127.0.0.1" instead "localhost".
If you are able to see "mysql stopped" when you run below command;
brew services list
and if you are able to start mysql with below command;
mysql server start
this means; mysql is able to start manually, but it doesn't start automatically when the operating system is started. Adding mysql to services will fix this problem. To do so, you can run below command;
brew services start mysql
After that, you may restart your operating system and try connecting to mysql to see if it started automatically. I did the same and stop receiving below error;
ERROR 2002 (HY000): Can't connect to local MySQL server through socket
'/tmp/mysql.sock' (2)
I hope this helps.
The file /tmp/mysql.sock is probably a Named-Pipe, since it's in a temporary folder. A named pipe is a Special-File that never gets permanently stored.
If we make two programs, and we want one program to send a message to another program, we could create a text file. We have one program write something in the text file and the other program read what our other program wrote. That's what a pipe is, except it doesn't write the file to our computer hard disk, IE doesn't permanently store the file (like we do when we create a file and save it.)
A Socket is the exact same as a Pipe. The difference is that Sockets are usually used over a network -- between computers. A Socket sends information to another computer, or receives information from another computer. Both Pipes and Sockets use a temporary file to share so that they can 'communicate'.
It's difficult to discern which one MySql is using in this case. Doesn't matter though.
The command mysql.server start should get the 'server' (program) running its infinite loop that will create that special-file and wait for changes (listen for writes).
After that, a common issue might be that the MySql program doesn't have permission to create a file on your machine, so you might have to give it root privileges
sudo mysql.server start
Since I spent quite some time trying to solve this and always came back to this page when looking for this error, I'll leave my solution here hoping that somebody saves the time I've lost. Although in my case I am using mariadb rather than MySql, you might still be able to adapt this solution to your needs.
My problem
is the same, but my setup is a bit different (mariadb instead of mysql):
Installed mariadb with homebrew
$ brew install mariadb
Started the daemon
$ brew services start mariadb
Tried to connect and got the above mentioned error
$ mysql -uroot
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
My solution
find out which my.cnf files are used by mysql (as suggested in this comment):
$ mysql --verbose --help | grep my.cnf
/usr/local/etc/my.cnf ~/.my.cnf
order of preference, my.cnf, $MYSQL_TCP_PORT,
check where the Unix socket file is running (almost as described here):
$ netstat -ln | grep mariadb
.... /usr/local/mariadb/data/mariadb.sock
(you might want to grep mysql instead of mariadb)
Add the socket file you found to ~/.my.cnf (create the file if necessary)(assuming ~/.my.cnf was listed when running the mysql --verbose ...-command from above):
[client]
socket = /usr/local/mariadb/data/mariadb.sock
Restart your mariadb:
$ brew services restart mariadb
After this I could run mysql and got:
$ mysql -uroot
ERROR 1698 (28000): Access denied for user 'root'#'localhost'
So I run the command with superuser privileges instead and after entering my password I got:
$ sudo mysql -uroot
MariaDB [(none)]>
Notes:
I'm not quite sure about the groups where you have to add the socket, first I had it [client-server] but then I figured [client] should be enough. So I changed it and it still works.
When running mariadb_config | grep socket I get:
--socket [/tmp/mysql.sock]
which is a bit confusing since it seems that /usr/local/mariadb/data/mariadb.sock is the actual place (at least on my machine)
I wonder where I can configure the /usr/local/mariadb/data/mariadb.sock to actually be /tmp/mysql.sockso I can use the default settings instead of having to edit my .my.cnf (but I'm too tired now to figure that out...)
At some point I also did things mentioned in other answers before coming up with this.
After installing macos mojave, had to wipe mysql folder under /usr/local/var/mysql and then reinstall via brew install mysql otherwise permission related things would come up all over the place.
In my case, the culprit was found in the logfiles:
$ tail /usr/local/var/mysql/<hostname>.lan.err
2019-09-19 7:32:21 0 [ERROR] InnoDB: redo log file './ib_logfile0' exists. Creating system tablespace with existing redo log files is not recommended. Please delete all redo log files before creating new system tablespace.
2019-09-19 7:32:21 0 [ERROR] InnoDB: Database creation was aborted with error Generic error. You may need to delete the ibdata1 file before trying to start up again.
So I renamed ib_logfile0 to get rid of the error (I had to do the same with ib_logfile1 afterwards).
mv /usr/local/var/mysql/ib_logfile0 /usr/local/var/mysql/ib_logfile0_bak
mv /usr/local/var/mysql/ib_logfile1 /usr/local/var/mysql/ib_logfile1_bak
brew services restart mariadb
I got the same error and this is what helped me:
$ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
$launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
$mysql -uroot
mysql>
I faced the same problem on my mac and solved it, by following the following tutorials
https://mariadb.com/resources/blog/installing-mariadb-10116-mac-os-x-homebrew
But don't forget to kill or uninstall the old version before continuing.
Commands:
brew uninstall mariadb
xcode-select --install
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" - See more at: https://mariadb.com/resources/blog/installing-mariadb-10116-mac-os-x-homebrew#sthash.XQoxRoJp.dpuf
brew doctor
brew update
brew info mariadb
brew install mariadb
mysql_install_db
mysql.server start
Just to add to these answers, In my case I had no local mySQL server, it was running inside a docker container. So the socket file does not exist and will not be accessible for the "mysql" client.
The sock file gets created by mysqld and mysql uses this to communicate with it.
However if your mySql server is not running local, it does not require the sock file.
By specifying a host name/ip the sock file is not required e.g.
mysql --host=127.0.0.1 --port=3306 --user=xyz --password=xyz
If "mysqld" IS running, it's possible your data is corrupted. Try running this:
mysqld
Read through the wall of data, and check if mysqld is reporting that the database is corrupted. Corruption can present in many unintuitive ways:
mysql -uroot returns "ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)".
mysql.server start returns "ERROR! The server quit without updating PID".
Sequel Pro and MySQL Workbench responds that they can't connect to MySQL on localhost or 127.0.0.1.
To recover your data, open my.cnf and add the following line in the [mysqld] section:
innodb_force_recovery=1
Restart mysqld:
$ brew services restart mysql#5.6
Now you can connect to it, but it’s in limited read-only mode.
If you're using InnoDB, run this to export all your data:
$ mysqldump -u root -p --all-databases --add-drop-database --add-drop-table > data-recovery.sql
The file is created in your ~ dir. It may take some time.
Once finished, remove innodb_force_recovery=1 from my.cnf, then restart mysql in normal mode:
$ brew services restart mysql#5.6
Drop all the databases. I did this using Sequel Pro. This deletes all your original data. Make sure your data-recovery.sql looks good before doing this. Also consider backing up /usr/local/var/mysql to be extra careful.
Then restore the databases, tables, and data with this:
$ mysql -uroot < ~/data-recovery.sql
This can be a long import/restoration process. Once complete, you’re good to go!
Thanks go to https://severalnines.com/database-blog/my-mysql-database-corrupted-what-do-i-do-now for the recovery instructions. The link has further instructions on MyISAM recovery.
You'll need to run mysql_install_db - easiest way is if you're in the install directory:
$ cd /usr/local/Cellar/mysql/<version>/
$ mysql_install_db
Alternatively, you can feed mysql_install_db a basedir parameter like the following:
$ mysql_install_db --basedir="$(brew --prefix mysql)"
After a restart I could not connect with the local mariadb, a search also brought me to this page and I wanted to share my solution with you.
I noticed that the directory my.cnf.d in /usr/local/etc/ is missing.
This is a known bug with homebrew that is described and solved there. https://github.com/Homebrew/homebrew-core/issues/36801
fast way to fix: mkdir /usr/local/etc/my.cnf.d
When running mysql_secure_installation and entering the new password I got:
Error: Can't connect to local MySQL server through socket
'/tmp/mysql.sock' (2)
I noticed when trying the following from this answer:
netstat -ln | grep mysql
It didn't return anything, and I took that to mean that there wasn't a .sock file.
So, I added the following to my my.cnf file (either in /etc/my.cnf or in my case, /usr/local/etc/my.cnf).
Under:
[mysqld]
socket=/tmp/mysql.sock
Under:
[client]
socket=/tmp/mysql.sock
This was based on this post.
Then stop/start mysql again and retried mysql_secure_installation which finally let me enter my new root password and continue with other setup preferences.
This works for me:
brew upgrade mysql
If brew does not complete "postinstall"
I only have to use:
sudo chown -R $(whoami) /usr/local/*
then completed postinstall by:
brew postinstall mysql#5.7
next step just start mysql#5.7 service.
It worked for me on MacOS Monterey.
I also ran into this... it seemingly resulted from some leftover artifacts of multiple mysql installs on my dev machine. Every time I attempted to start or restart the mysql service it would crash. Ultimately, working through the err file helped me solve my issue.
Setup:
M1 Macbook Pro running OS 12 (Monterey)
Homebrew install of mysql#5.7
At various points during troubleshooting I tried uninstalling everything mysql in my Homebrew list, deleting /opt/homebrew/var/mysql, and reinstalling mysql#5.7 to no avail. I also tried restarting my machine.
I was able to validate what was happening when the service failed to start by reviewing the err (e.g., MyComputerName.local.err) log that it was spitting out into /opt/homebrew/var/mysql/ when I tried to start/restart the service via Homebrew. In the beginning, I was seeing things like this that pointed to issues with the config:
mysqld: Table 'mysql.plugin' doesn't exist
TIMESTAMPZ 0 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
TIMESTAMPZ 0 [ERROR] unknown variable 'mysqlx-bind-address=127.0.0.1'
TIMESTAMPZ 0 [ERROR] Aborting
I deleted my.cnf and my.cnf.default in /opt/homebrew/etc and attempted to start the service again. Then, the failure changed to this:
TIMESTAMPZ 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
TIMESTAMPZ 0 [ERROR] Fatal error: Failed to initialize ACL/grant/time zones structures or failed to remove temporary table files.
TIMESTAMPZ 0 [ERROR] Aborting
At this point I noticed several mysql lock files in /opt/homebrew/var/homebrew/locks/ (mysql.formula.lock, mysql.formula#5.7.lock, mysql.formula#8.0.lock); I deleted those files, as well as anything mysql in /opt/homebrew/var/homebrew/linked.
After that, I was able to start mysql without any issues.
just to complete this thread.
therefore MAMP (PRO) is used pretty often
the path here is
/Applications/MAMP/tmp/mysql/mysql.sock
I manually started mysql in the system preferences pane by initialising the database and then starting it. This solved my problem.
I had same problem. After trying all these methods without success I did the following:
tail -f the-mysql-or-maria-db-error-file.err
in another console:
brew services restart mariadb
I saw the following error:
"MAC HOMEBREW Crash recovery failed. Either correct the problem (if
it's, for example, out of memory error) and restart, or delete tc log
and start mysqld with"
So I changed the tc.log extesion to tc.log.txt and restart mariadb
brew services restart mariadb
and done!
[LINUX]
Though answer is expected to be for MacOS only but in Linux we may face the same Error.
I was facing the same issue in Linux. I ran this command:
sudo /etc/init.d/mysql.server start
and I was able to run the MySQL server
Ref. https://gist.github.com/vinodpandey/1a4b5b8228f9a000ca236820185fc3bc
I just ran into this problem, I did some tricks but for me it didn't work. If you used macOS, here is what I did. We start by uninstalling mysql and then reinstalling it.
brew uninstall mysql
brew install mysql
Note: you must have homebrew installed
This happened to me today 2023-02-23 after a homebrew update.
Homebrew had created a new my.cnf.default file, I backed up my old one and replaced it with this new default and restarted Mariadb and everything worked including the old root password.
For me, I had installed mariadb long time ago, then installed mysql#5.7.
When I executed mysql -uroot, I get the error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
Reading the answers:
I uninstalled mariadb
Deleted the folder /usr/local/var/mysql
Ran the command mysqld --initialize
Then I was able to mysql -uroot -p

How to make mysql_install_db work?

I am new with MySql please help me out.
First to install MySql 5.5.7-rc i used this command->
sudo ./configure --prefix=/usr/local/mysql --with-plugin-partition --with-tcp-port=3308 --with-unix-socket-path=/tmp/mysql1.sock --with-debug
$sudo make
$sudo make install
Then when i am executing following command i am getting couple of errors.
$sudo ./mysql_install_db --datadir=/usr/local/mysql/data --basedir=/usr/local/mysql/ --user=mysql
ERROR:::
Installing MySQL system tables...
connect: Connection refused
Installation of system tables failed! Examine the logs in
/usr/local/mysql/data for more information.
You can try to start the mysqld daemon with:
shell> /usr/local/mysql//bin/mysqld --skip-grant &
and use the command line tool /usr/local/mysql//bin/mysql
to connect to the mysql database and look at the grant tables:
shell> /usr/local/mysql//bin/mysql -u root mysql
mysql> show tables
Try 'mysqld --help' if you have problems with paths. Using --log
gives you a log in /usr/local/mysql/data that may be helpful.
Please consult the MySQL manual section
'Problems running mysql_install_db', and the manual section that
describes problems on your OS. Another information source are the
MySQL email archives available at http://lists.mysql.com/.
Please check all of the above before mailing us! And remember, if
you do mail us, you MUST use the /usr/local/mysql//scripts/mysqlbug script!
Then i tried '/usr/local/mysql//bin/mysql -u root mysql' and i found
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
But /tmp/mysql.sock and /var/run/mysqld/mysqld.sock don't exist. I checked it...
Please give some suggestion to overcome this problem.
even mysqld service is not being started..
"connect: Connection refused" means the server's not listening where it's expected to; I understand that an answer a year late might be a bit too late but one should start with what the distribution provides or the official builds and not a self-made source build of an RC of a quite complex product in the first place.
Maybe those hitting this question will find the accepted answer to that one useful: bash:scripts/mysql_install_db: No such file or directory

How to start MySQL server on windows xp

Whenever I try to start MySQL by typing
> mysql -u root
I get the error
ERROR 2003(HY000): Can't connect to MySQL server on 'localhost' (10061)
How can I solve the problem above? I just downloaded MySQL and unzipped it in the E: drive. I have not done anything else. Do I have to make a connection first? If so, how can I do that?
Here is the ZIP file that I had downloaded: mysql-5.7.15-winx64.zip
Here are the steps to start MYSQL Server (mysql-5.7.15-winx64) for the first time on Windows:
Create a new folder named "data" in MYSQL installation directory (i.e. in the same location as where "bin" directory is located. For me it is: C:\programs\mysql-5.7.15-winx64\mysql-5.7.15-winx64. This location will vary as per the location where you have extracted the MYSQL zip file)
From here I will use my MYSQL folder location as reference. Go to: C:\programs\mysql-5.7.15-winx64\mysql-5.7.15-winx64\bin and execute the command: mysqld --initialize-insecure or mysqld --initialize depending on whether you want the server to generate a random initial password for the 'root'#'localhost' account.
To start the DB, go to: C:\programs\mysql-5.7.15-winx64\mysql-5.7.15-winx64\bin and execute mysqld --console You can see the start-up logs being printed.
To connect to DB, go to: C:\programs\mysql-5.7.15-winx64\mysql-5.7.15-winx64\bin and execute mysql -u root -p. When prompted, Enter password if it has been set or else just hit "Enter" button to connect
The MySQL server can be started manually from the command line. This can be done on any version of Windows.
To start the mysqld server from the command line, you should start a console window (or “DOS window”) and enter this command:
shell> "C:\Program Files\MySQL\MySQL Server 5.0\bin\mysqld"
The path to mysqld may vary depending on the install location of MySQL on your system.
You can stop the MySQL server by executing this command:
shell> "C:\Program Files\MySQL\MySQL Server 5.0\bin\mysqladmin" -u root shutdown
**Note : **
If the MySQL root user account has a password, you need to invoke mysqladmin with the -p option and supply the password when prompted.
This command invokes the MySQL administrative utility mysqladmin to connect to the server and tell it to shut down. The command connects as the MySQL root user, which is the default administrative account in the MySQL grant system. Note that users in the MySQL grant system are wholly independent from any login users under Windows.
If mysqld doesn't start, check the error log to see whether the server wrote any messages there to indicate the cause of the problem. The error log is located in the C:\Program Files\MySQL\MySQL Server 5.0\data directory. It is the file with a suffix of .err. You can also try to start the server as mysqld --console; in this case, you may get some useful information on the screen that may help solve the problem.
The last option is to start mysqld with the --standalone and --debug options. In this case, mysqld writes a log file C:\mysqld.trace that should contain the reason why mysqld doesn't start. See MySQL Internals: Porting to Other Systems.
Via MySQL Official Page
If the command prompt does not work in Windows, try the following:
1) Open services in Windows.
2) Then check the status for Mysql and if you found status nothing or blank then start the mysql service.
3) After then see whether the mysql is start or not .If it shows started then try to check mysql working.
It has worked for me when cmd commands were not working.
Run the command prompt as admin and cd to bin directory of MySQL
Generally it is (C:\Program Files\MySQL\mysql-5.6.36-winx64\bin)
Run command : mysqld --install. (This command will install MySQL services and if services already installed it will prompt.)
Run below commands to start and stop server
To start : net start mysql
To stop : net stop mysql
Run mysql command.
Enjoy !!
maybe
E:\mysql-5.1.39-win32\bin>mysql -u root -p
Type
C:\> "C:\Program Files\MySQL\MySQL Server 5.1\bin\mysqld" --console
to start the sql server and then test the client connection.
I was using MySQL Server 5.5 as a result I was missing the folder which majority of the answers made mention of in the bin folder. What I did instead was the following:
Open Explorer and make your way to C:\Program Files\MySQL\MySQL Server 5.5\bin or your MySQL installation directory.
Run the executable application MySQLInstanceConfig and follow the images below.
This solved my issue and I was able to access the database without any errors.
Start mysql server by command prompt
C:> "C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld" --console
Or alternative reach up to bin then
mysqld --console
It will start your server.
If you have mysql command line client available
click on it
it show enter your password :
Please enter your password.
Then you can access it.
You also need to configure and start the MySQL server. This will probably help
I tried following steps to run mysql server 5.6 on my windows 8.
Run command prompt as an administrator
go mysql server 5.6 installation directory (in my case: C:\Program Files (x86)\MySQL\MySQL Server 5.6\bin) copy that location
In Command prompt run "cd C:\Program Files (x86)\MySQL\MySQL Server 5.6\bin"
run "mysql -u root"
You need to run the server first. The command you use (in the question) starts a client to connect to the server but the server is not there so there the error.
Since I am not a Windows user (Linux comes equipped) so I might not be the best person to tell you how but I can point to you to a guide and another guide that show you how to get MySQL server up and running in Windows.
After you get that running, you can use the command (in the question) to connect it.
NOTE: You may also try http://www.apachefriends.org/en/xampp.html if you plan to use MySQL for web database development.
Hope this helps.
The error complains about localhost rather than permissions and the current practice in MySQL is to have a bind-address specifying localhost only in a configuration file.
So I don't think it's a password problem - except that you say you 'unzipped' MySQL.
Is that enough installation? What did you download?
Was there any installation step which allowed you to define a root password?
And, as NawaMan said, is the server running?
first thing you need to do is to start the mysql
for that you can use
E:\mysql-5.1.39-win32\bin>net start mysql (only when there a mysql running as service)
then you can execute
E:\mysql-5.1.39-win32\bin>mysql -u root
Run your command prompt as administrator.#
We can start MySQL service from windows command line using the below command.
net start mysql
Command to stop MySql service:
net stop mysql
Disable MySql service:
sc config mysql start= disabled
Command to enable MySql service(to automatically start MySQL service when the system starts up):
sc config mysql start= auto
Command to set the startup type to manual:
sc config mysql start= manual
How to restart MySql service?
There is no direct command to restart a service. You can combine stop and start commands like below.
net stop mysql & net start mysql
I was also having problem with starting MySql server but run command as mention right mark in picture . Its working fine .
mysql -u root -p
After entering this command in terminal, it will ask for password
Enter the password and you are ready to go!
there is one of the best solution do resolve this problem and it is going to work 100%.
as we know that server is a process so treat it like a process go to the task manager
in windows and see for services in task manager in that service see for Mysql and MS80 and try to start it manually by click on it and say run then will take some time.
go to your mysql workbench and click on start/shutdown then try to refresh the server status in server status option. it will load up thats it.
1.Open a command prompt as Administrator.
2.Go to MySQL installed bin directory in program files.
3.Copy the location of the bin directory from windows explorer.
4.In command prompt type cd and (paste the location) and do enter.
5.Type mysqld --initialize
6.Open services from the windows menu and sort the list by name.
7.Right-click Mysql and click start.
use the command "mysql -u root -p" in the bin folder path.
and give the MY SQL password which you have set earlier.