I am new to building server, I need to install MySQL server on CentOS 5.10 (64-bit). I used source code for the installation as I cannot use the root account.
I have finished cmake, make, make install process, it goes fine, but when I tried to start the server, it said "can't connect to mysql server through socket ". I guess it's because I do not have /tmp/mysql.sock and I cannot find any mysql.sock created under my basedir.
Is there any way to create the mysql.sock under a desired directory? I do not have the access right to the /tmp/ dir, please help!
EDIT
When I cmake the files, I have added options to change data dir, tmp dir, mysql.sock, hoping to create the mysql.sock and the data dir under my desired path, like user/ws1/mysql/,however it seems that doesn't work, is there any way to do so?
After cmake, make, make install, you need to go to /usr/local/mysql/scripts and execute mysql_install_db -u root before starting MySQL. Hope this will help ~
You need to start the server before you connect to it with the mysql command.
To start it try running support-files/mysql.server start .
Related
I Used Migration Assistant from ios to put my things in another mac.
But, after that, my MySQL Server does not run!
In System Preferences, my computer say:
the mysql server instance is not running
Whats happing?
I try this:
brew services start mysql#5.7
And receive:
Error: Formula `mysql#5.7` is not installed.
I do not know why, but my system automatically renamed the MySQL directory during the migration process.
I identified that the usr/local/mysql/ directory was now called usr/local/mysql-5.7.21-macos10.13-x86_64/
What I did that solved the problem, was to create a symbolic link
sudo ln -s mysql-5.7.21-macos10.13-x86_64 mysql
I rebooted my mac, and everything worked correctly.
you will probably need to identify the new directory name with the command
ls usr/local
I'm setting up a new Ubuntu computer, namely mysql. I've various rails app that use mysql on the socket /tmp/mysql.sock, and as they're group projects I can't change their db config options.
"mysqladmin -u root -p variables | grep socket" tells me my socket is /var/run/mysqld/mysqld.sock. I also have a mysql directory /etc/mysql.
I've read that I'm supposed to add the socket path to the my.cnf file in the etc/mysql directory, however it is locked for editing, and somehow reverts ownership immediately if I use chown to try and change it.
Please advise me how I can change where mysql sets its default socket path.
I am also trying to get to the bottom of this, but have yet to find the definitive answer. It looks like the socket path of mysql is different between a mac and a ubuntu machine.
I initially created my app on my mac, where the socket path is:
/tmp/mysql.sock. When I tried to run rake db:create on my ubuntu machine it kept complaining that the socket does not exist. I had a look at what it is called on my ubuntu machine, which was /var/run/mysqld/mysqld.sock. When I switch it out in database.yml it seems to work, but I guess I will have to keep both options in my file and uncomment based on which environment I am working in.
Hope that helps!
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
I have recently installed MySQL directly from the website (mysql-5.7.9-osx10.10-x86_64.dmg) and I have run into a great deal of difficulty that started with trying to change the given password. The error that was returned was:
[Warning] Using a password on the command line interface can be
insecure. mysqladmin: connect to server at 'localhost' failed error:
Can't connect to local MySQL server through socket '/tmp/mysql.sock
(2)' Check that mysqld is running and that the socket:
'/tmp/mysql.sock' exists!
From here I attempted to find the "usr" folder (hidden files are showing) or even anything that closely resembles MySQL anywhere on my computer and got nothing except for installation .dmg files.
I know that MySQL was installed because it is now able to be started and stopped in the System Preferences pane, but clearly none of my commands are working and I keep getting this error no matter what I do:
mysql: command not found
Can someone give me some clue as to what I am missing? I've become fairly desperate and can't figure out what I am doing wrong. I am running El Capitan.
Well, if you're saying that MySQL is running, you can try looking for it via terminal command like this:
ps aux | grep mysql
which should give something like
12345 ... 5 Apr16 9:09.32 /usr/local/Cellar/mysql/5.6.17/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.6.17 --datadir=/usr/local/var/mysql --bind-address=127.0.0.1
so basedir and datadir is probably the most valuable outputs here (please note that your path most likely will be different).
On top of it, in order to get mysql command running through terminal you have two options
Create simulink from mysql's basedir into your /usr/local/bin directory
ln -s /usr/local/Cellar/mysql/5.6.17/bin/mysql /usr/local/bin/mysql
Add mysql's basedir/bin to your path (need to add this to your ~/.bashrc to make it persistent)
export PATH=/usr/local/Cellar/mysql/5.6.17/bin/:$PATH
New terminal tab is required for these changes to catch up.
Cheers.
I'm installing Apache server, php, and MySQL on Windows10.
First two was successful but MySQL has a problem.
I installed MySQL into C:\mysql-5.7.10-winx64, and changed my.ini like this
basedir = C:/mysql-5.7.10-winx64
datadir = C:/mysql-5.7.10-winx64/data
port = 3306
I succeeded install but if I try to start, it shows like below
C:\Windows\system32>net start mysql
The MySQL service is starting.
The MySQL service could not be started.
The service did not report an error.
More help is available by typing NET HELPMSG 3534.
However, if I check Computer Management>Event Viewer>Custom Views>Summary page events, it tells me "failed to set datadir to C:\mysql-5.7.10-winx64\data\"
If I make data folder manually, error message changed to
Can't open the mysql.plugin table
Please run mysql_upgrade to create it.." and some files are created in data folder
I tried to upgrade by typing mysql_upgrade but it failed.
mysql_upgrade: Got error: 2003: Can't connect to MySQL server on 'localhost' (10061) while connecting to the MySQL server. Upgrade process encountered error and will not continue.
How can I solve this issue?
Clear the "data" directory, then run command mysqld --initialize, and the command net start mysql, bingo!
1.For the error,
2003: Can't connect to MySQL server on 'localhost' (10061) while connecting to the MySQL server. Upgrade process encountered error and will not continue.
I ran the cmd as administrator and then go to \Program Files\MySQL\MySQL Server 5.7\bin\, and run
mysqld install
2.For the error,
C:\Program Files\MySQL\MySQL Server 5.7\bin>net start mysql
The MySQL service is starting.
The MySQL service could not be started.
The service did not report an error.
More help is available by typing NET HELPMSG 3534.
Try
mysqld --initialize
and then
net start mysql
Thanks to Athan's answer. Those combination worked for me.
I also had the same problem and I wasted hours solving the issue, but in the end this worked.
Go to you C:\ProgramData\MySQL\MySQL Server 5.7 and copy the my.ini file from there.
Go to C:\Program Files\MySQL\MySQL Server 5.7 and paste it there.
Open cmd and run net start mysql
It would work like a charm.
Explanation:
MySQL couldn't find my.ini, therefore tried to create data in Program Files... where it had no rights to do so, therefore it says access denied every time you run it.
This is old but I was running into the same problem you were seeing. I thought I'd share this answer for anyone looking. I created the data directory as you did initially and tried to start the service and got "Can't open and lock privilege tables: Table mysql.user doesn't exist." I then deleted the contents of the data directory and instead initialized the data directory by running the following command from the bin folder.
mysqld --initialize [with random root password]
mysqld --initialize-insecure [without random root password]
I had the same error, after checked this document: https://dev.mysql.com/doc/refman/8.0/en/data-directory-initialization.html
I just clear data directory and add the --console option to initialize:
bin\mysqld --defaults-file=C:\my.ini
--initialize --console
Hope this help
MySQL Server can either be run as a Program or as a Service. You cannot run both. You should stop 'mysqld' Server Program before starting 'mysqld' Server as Service.
The 'mysqld' Server Program can be stopped either by typing
'CTRL + c' or by issuing
'mysqladmin -u root -p shutdown' command and issue the password when prompted.
You need download from https://dev.mysql.com/downloads/mysql/ previous GA versions, and after that copy directory "data" to your new mysql or outher directory what you write in configfile my.ini in directory mysql-"version" .
For your error, main cause is in your my.ini setting.
Since you are installing MySQL on Windows, you should define path like:
basedir = C:\\mysql-5.7.10-winx64
datadir = C:\\mysql-5.7.10-winx64\\data
These slashes must be doubled.
Then start your MySQL service again. I guess this time would work.
And here is official document from MySQL.
This saved my life,
Just turn off the windows firewall and Give he port number correctly as 3306 as default, then restart MYSQL server . After that turn on the windows defender firewall
Just work it fine.
Looks like my solution is not added yet,
I've installed mysql80 , edited my.ini in windows notepad and got the same error like topic author "... NET HELPMSG 3534." when I start mysql service,
and my issue was in extra bytes added by notepad at the begining (EB BB BF) on my.ini, when I edited (added the same changes) my.ini in other editor everything worked fine.