Unable to install mysqlclient on centos

Question

I am building a django app and for which i need to configure mysql.I am trying to install mysqlclient module for sql connection and this is what i am trying

Answer 1

The simplest solution that worked for me is:

yum install python-devel mysql-devel

Then install mysqlclient using pip

pip install mysqlclient

Answer 2

I found this solution at https://github.com/r-dbi/RMySQL/issues/197:

I think this is a bug in that custom MariaDB repo. Their package MariaDB-devel-10.2.6-1.fc25.x86_64 only contains a library named:

/usr/lib64/libmariadbclient.a

However their pkg-config yields another name:

> pkg-config --libs mariadb
    -lmariadb

You best raise this at the maintainers of that repo. A workaround is to symlink libmariadbclient.a to libmariadb.a:

sudo ln -s /usr/lib64/libmariadbclient.a /usr/lib64/libmariadb.a

That fixes the installation.

So basically to have mysqlclient install in Python 3.6 and CentOS 7 you need to run:

sudo yum install -y python36-devel mysql-devel gcc

sudo ln -s /usr/lib64/libmariadbclient.a /usr/lib64/libmariadb.a

pip install mysqlclient

Answer 3

Open the terminal or login to the workstation/laptop/dev-server using ssh client. Type the following command yum command as a root user:

# yum install mysql
Loaded plugins: downloadonly, fastestmirror, security
Loading mirror speeds from cached hostfile
 * base: mirror.wiredtree.com
 * extras: mirrors.serveraxis.net
 * updates: bay.uchicago.edu
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package mysql.x86_64 0:5.1.71-1.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package         Arch             Version                  Repository      Size
================================================================================
Installing:
 mysql           x86_64           5.1.71-1.el6             base           893 k

Transaction Summary
================================================================================
Install       1 Package(s)

Total download size: 893 k
Installed size: 2.4 M
Is this ok [y/N]: y
Downloading Packages:
mysql-5.1.71-1.el6.x86_64.rpm                            | 893 kB     00:00     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-5.1.71-1.el6.x86_64                                    1/1 
  Verifying  : mysql-5.1.71-1.el6.x86_64                                    1/1 

Installed:
  mysql.x86_64 0:5.1.71-1.el6                                                   

Complete!

mysql client the basic syntax is:

mysql -u USER-NAME-HERE -h MYSQL-DB-SERVER-IP-ADDRESS-HERE -p DB-NAME
mysql -u nixcraft -h server1.cyberciti.biz -p salesdata

Answer 4

It's complaining about not being able to find mariadb libs. Run the following to find out why:

ld -lmariadb --verbose

This should tell you specifically what gcc is missing.

My guess is that you are missing some MySQL development headers. Install them with:

debian / ubuntu: sudo apt-get install python-dev libmysqlclient-dev
redhat / centos: sudo yum install python-devel mysql-devel

Update: It really is missing MariaDB shared libs. I think on CentOS, this should take care of it:

sudo yum install MariaDB-devel

Final Update: Just use PyMySQL - pure python, no headers required, no need to jump through these kinds of hoops.

Answer 5

Solved in CentOS 7 + MariaDB 10.2

I'm having same issue, and I would like to contribute with my answer. I've just installed in my 2 servers running CentOS 7 with MariaDB (10.2.14-MariaDB MariaDB Server) .

$ cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)

$ mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is XXXX
Server version: 10.2.14-MariaDB MariaDB Server

I've installed MariaDB, this packages:

$ yum list installed | grep mariadb
MariaDB-client.x86_64                   10.3.13-1.el7.centos           @mariadb
MariaDB-common.x86_64                   10.3.13-1.el7.centos           @mariadb
MariaDB-compat.x86_64                   10.3.13-1.el7.centos           @mariadb
MariaDB-server.x86_64                   10.3.13-1.el7.centos           @mariadb
galera.x86_64                           25.3.25-1.rhel7.el7.centos     @mariadb

I found that the problem is that mysqlclient requires mysql-devel packages, which is different from mariadb-devel. Don't install mariadb-devel!

So, to install only mysql-devel, you need to:

1. Remove any MariaDB-devel

$ sudo yum erase MariaDB-devel.x86_64

2. Add MySQL repository in yum

1. Go to https://dev.mysql.com/downloads/repo/yum/ and select the RPM file for your CentOS (for me, I choose "Red Hat Enterprise Linux 7 / Oracle Linux 7 (Architecture Independent), RPM Package". Click "download".)
2. Download without registration, copy bottom link "No thanks, just start my download".
3. Go to your terminal and type:

$ wget link-to-rpm-you-choose

4. After download complete, type:

$ sudo rpm -Uvh your-rpm-downloaded

3. Now, install mysql-devel

1. Type (this is my version, watch yours):

$ sudo yum install mysql-community-devel.x86_64

4. Now, finally: mysqlclient

1. Type:

$  sudo pip install mysqlclient
Collecting mysqlclient
  Cache entry deserialization failed, entry ignored
  Cache entry deserialization failed, entry ignored
  Downloading https://files.pythonhosted.org/packages/f4/f1/3bb6f64ca7a429729413e6556b7ba5976df06019a5245a43d36032f1061e/mysqlclient-1.4.2.post1.tar.gz (85kB)
    100% |████████████████████████████████| 92kB 758kB/s
Installing collected packages: mysqlclient
  Running setup.py install for mysqlclient ... done
Successfully installed mysqlclient-1.4.2.post1
You are using pip version 8.1.2, however version 19.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

And that's it! It worked like a charm and now I can use Python + Django + MariaDB/MySQL

Oh, and mysqlclient is the connector recommended by Django. See: https://docs.djangoproject.com/en/2.1/ref/databases/#mysql-db-api-drivers

Good luck and see ya! :-)