CentOS7编译安装MySQL5.7之后安装mysql-devel出错解决方案
由于我的MySQL是自己编译安装，但是安装之后/etc/yum.repos.d/目录下并没有MySQL的源，导致我在安装mysql-devel出错。
缺少MySQL的源：
[root@localhost liuyuantao]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ls
CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Media.repo CentOS-Sources.repo CentOS-Vault.repo mongodb-org-3.2.repo
具体错误如下：
[root@localhost liuyuantao]# yum -y install mysql-devel
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.cqu.edu.cn
* extras: mirrors.163.com
* updates: mirrors.163.com
Resolving Dependencies
--> Running transaction check
---> Package mariadb-devel.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
Removing mariadb-libs.x86_64 1:5.5.50-1.el7_2 - u due to obsoletes from installed mysql-community-libs-5.7.14-1.el7.x86_64
--> Restarting Dependency Resolution with new changes.
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.47-1.el7_2 will be installed
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
Removing mariadb-libs.x86_64 1:5.5.47-1.el7_2 - u due to obsoletes from installed mysql-community-libs-5.7.14-1.el7.x86_64
--> Restarting Dependency Resolution with new changes.
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.47-1.el7_2 will be installed
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.44-2.el7.centos will be installed
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
Removing mariadb-libs.x86_64 1:5.5.44-2.el7.centos - u due to obsoletes from installed mysql-community-libs-5.7.14-1.el7.x86_64
--> Restarting Dependency Resolution with new changes.
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.44-2.el7.centos will be installed
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be installed
--> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2 for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64
--> Finished Dependency Resolution
Error: Package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64 (updates)
Requires: libmysqlclient.so.18()(64bit)
Available: 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 (base)
libmysqlclient.so.18()(64bit)
Available: 1:mariadb-libs-5.5.47-1.el7_2.x86_64 (updates)
libmysqlclient.so.18()(64bit)
Available: 1:mariadb-libs-5.5.50-1.el7_2.x86_64 (updates)
libmysqlclient.so.18()(64bit)
Error: Package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64 (updates)
Requires: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2
Available: 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 (base)
mariadb-libs(x86-64) = 1:5.5.44-2.el7.centos
Available: 1:mariadb-libs-5.5.47-1.el7_2.x86_64 (updates)
mariadb-libs(x86-64) = 1:5.5.47-1.el7_2
Available: 1:mariadb-libs-5.5.50-1.el7_2.i686 (updates)
~mariadb-libs(x86-32) = 1:5.5.50-1.el7_2
Error: Package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64 (updates)
Requires: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2
Installing: 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 (base)
mariadb-libs(x86-64) = 1:5.5.44-2.el7.centos
Available: 1:mariadb-libs-5.5.47-1.el7_2.x86_64 (updates)
mariadb-libs(x86-64) = 1:5.5.47-1.el7_2
Available: 1:mariadb-libs-5.5.50-1.el7_2.i686 (updates)
~mariadb-libs(x86-32) = 1:5.5.50-1.el7_2
Error: Package: 1:mariadb-devel-5.5.50-1.el7_2.x86_64 (updates)
Requires: mariadb-libs(x86-64) = 1:5.5.50-1.el7_2
Available: 1:mariadb-libs-5.5.44-2.el7.centos.x86_64 (base)
mariadb-libs(x86-64) = 1:5.5.44-2.el7.centos
Installing: 1:mariadb-libs-5.5.47-1.el7_2.x86_64 (updates)
mariadb-libs(x86-64) = 1:5.5.47-1.el7_2
Available: 1:mariadb-libs-5.5.50-1.el7_2.i686 (updates)
~mariadb-libs(x86-32) = 1:5.5.50-1.el7_2
You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
icedtea-web-1.6.1-4.el7.x86_64 has missing requires of java-1.8.0-openjdk
jline-1.0-8.el7.noarch has missing requires of java >= ('0', '1.5', None)上面的错误由于没有MySQL的源，导致在安装mysql-devel的时候会提示安装mariadb-devel-5.5.50-1.el7_2.x86_64，并且系统并没有mysql_config，（缺少mysql_config在安装mysql-python的时候会提示出错，如果出现安装mysql-python错误，请查看CentOS7使用pip安装mysql-python出错解决方案）。
具体解决方案：
1.需要安装MySQL的源
wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm2.这是在/etc/yum.repos.d/目录下会出现MySQL的相关repo
[root@localhost tmp]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ls
CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo mysql-community.repo
CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo mongodb-org-3.2.repo mysql-community-source.repo
3.现在有MySQL的源，可以安装mysql-devel了
[root@localhost yum.repos.d]# yum install mysql-devel
Loaded plugins: fastestmirror, langpacks
mysql-connectors-community | 2.5 kB 00:00:00
mysql-tools-community | 2.5 kB 00:00:00
mysql57-community | 2.5 kB 00:00:00
mysql57-community/x86_64/primary_db | 76 kB 00:00:00
Loading mirror speeds from cached hostfile
* base: mirrors.cqu.edu.cn
* extras: mirrors.163.com
* updates: mirrors.163.com
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-devel.x86_64 0:5.7.15-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===========================================================================================================================================================================
Package Arch Version Repository Size
===========================================================================================================================================================================
Installing:
mysql-community-devel x86_64 5.7.15-1.el7 mysql57-community 3.6 M
Transaction Summary
===========================================================================================================================================================================
Install 1 Package
Total download size: 3.6 M
Installed size: 21 M
Is this ok [y/d/N]: y
Downloading packages:
mysql-community-devel-5.7.15-1.el7.x86_64.rpm | 3.6 MB 00:00:05
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
icedtea-web-1.6.1-4.el7.x86_64 has missing requires of java-1.8.0-openjdk
jline-1.0-8.el7.noarch has missing requires of java >= ('0', '1.5', None)
Installing : mysql-community-devel-5.7.15-1.el7.x86_64 1/1
Verifying : mysql-community-devel-5.7.15-1.el7.x86_64 1/1
Installed:
mysql-community-devel.x86_64 0:5.7.15-1.el7
Complete!
[root@localhost yum.repos.d]#