libc.so.6(GLIBC_2.14)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
[root@localhost mysql]# rpm -ivh MySQL-server-5.6.27-1.el7.x86_64.rpm
warning: MySQL-server-5.6.27-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
libc.so.6(GLIBC_2.14)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
libc.so.6(GLIBC_2.15)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
libc.so.6(GLIBC_2.16)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
libc.so.6(GLIBC_2.17)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
libstdc++.so.6(GLIBCXX_3.4.15)(64bit) is needed by MySQL-server-5.6.27-1.el7.x86_64
解决办法：
下载 Linux - Generic 版 MySQL-5.6.27-1.linux_glibc2.5.i386.rpm-bundle.tar
http://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-5.6.27-1.linux_glibc2.5.i386.rpm-bundle.tar
参考：http://wrox.cn/article/100039428/