我的Mysql是5.6版本，通过自己下载的rpm包执行安装：
yum instal percona-xtrabackup-2.1.7-721.rhel6.x86_64.rpm
会出现如下的安装错误提示：
[root@host2 MySQL]# yum install percona-xtrabackup-2.1.7-721.rhel6.x86_64.rpm Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Install Process Examining percona-xtrabackup-2.1.7-721.rhel6.x86_64.rpm: percona-xtrabackup-2.1.7-721.rhel6.x86_64 Marking percona-xtrabackup-2.1.7-721.rhel6.x86_64.rpm to be installed Loading mirror speeds from cached hostfile * base: mirrors.zju.edu.cn * extras: mirrors.cqu.edu.cn * updates: mirrors.zju.edu.cn Resolving Dependencies --> Running transaction check ---> Package percona-xtrabackup.x86_64 0:2.1.7-721.rhel6 will be installed --> Processing Dependency: perl(DBD::mysql) for package: percona-xtrabackup-2.1.7-721.rhel6.x86_64 --> Processing Dependency: perl(Time::HiRes) for package: percona-xtrabackup-2.1.7-721.rhel6.x86_64 --> Running transaction check ---> Package perl-DBD-MySQL.x86_64 0:4.013-3.el6 will be installed --> Processing Dependency: perl(DBI::Const::GetInfoType) for package: perl-DBD-MySQL-4.013-3.el6.x86_64 --> Processing Dependency: perl(DBI) for package: perl-DBD-MySQL-4.013-3.el6.x86_64 --> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: perl-DBD-MySQL-4.013-3.el6.x86_64 --> Processing Dependency: libmysqlclient.so.16()(64bit) for package: perl-DBD-MySQL-4.013-3.el6.x86_64 ---> Package perl-Time-HiRes.x86_64 4:1.9721-136.el6_6.1 will be installed --> Processing Dependency: perl = 4:5.10.1-136.el6_6.1 for package: 4:perl-Time-HiRes-1.9721-136.el6_6.1.x86_64 --> Running transaction check ---> Package mysql-libs.x86_64 0:5.1.73-5.el6_6 will be installed ---> Package perl.x86_64 4:5.10.1-136.el6 will be updated --> Processing Dependency: perl = 4:5.10.1-136.el6 for package: 1:perl-Pod-Simple-3.13-136.el6.x86_64 --> Processing Dependency: perl = 4:5.10.1-136.el6 for package: 3:perl-version-0.77-136.el6.x86_64 --> Processing Dependency: perl = 4:5.10.1-136.el6 for package: 1:perl-Pod-Escapes-1.04-136.el6.x86_64 --> Processing Dependency: perl = 4:5.10.1-136.el6 for package: 1:perl-Module-Pluggable-3.90-136.el6.x86_64 --> Processing Dependency: perl = 4:5.10.1-136.el6 for package: 4:perl-libs-5.10.1-136.el6.x86_64 ---> Package perl.x86_64 4:5.10.1-136.el6_6.1 will be an update ---> Package perl-DBI.x86_64 0:1.609-4.el6 will be installed --> Running transaction check ---> Package perl-Module-Pluggable.x86_64 1:3.90-136.el6 will be updated ---> Package perl-Module-Pluggable.x86_64 1:3.90-136.el6_6.1 will be an update ---> Package perl-Pod-Escapes.x86_64 1:1.04-136.el6 will be updated ---> Package perl-Pod-Escapes.x86_64 1:1.04-136.el6_6.1 will be an update ---> Package perl-Pod-Simple.x86_64 1:3.13-136.el6 will be updated ---> Package perl-Pod-Simple.x86_64 1:3.13-136.el6_6.1 will be an update ---> Package perl-libs.x86_64 4:5.10.1-136.el6 will be updated ---> Package perl-libs.x86_64 4:5.10.1-136.el6_6.1 will be an update ---> Package perl-version.x86_64 3:0.77-136.el6 will be updated ---> Package perl-version.x86_64 3:0.77-136.el6_6.1 will be an update --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================================ Package Arch Version Repository Size ============================================================================================================================================================================ Installing: percona-xtrabackup x86_64 2.1.7-721.rhel6 /percona-xtrabackup-2.1.7-721.rhel6.x86_64 24 M Installing for dependencies: mysql-libs x86_64 5.1.73-5.el6_6 updates 1.2 M perl-DBD-MySQL x86_64 4.013-3.el6 base 134 k perl-DBI x86_64 1.609-4.el6 base 705 k perl-Time-HiRes x86_64 4:1.9721-136.el6_6.1 updates 48 k Updating for dependencies: perl x86_64 4:5.10.1-136.el6_6.1 updates 10 M perl-Module-Pluggable x86_64 1:3.90-136.el6_6.1 updates 40 k perl-Pod-Escapes x86_64 1:1.04-136.el6_6.1 updates 32 k perl-Pod-Simple x86_64 1:3.13-136.el6_6.1 updates 212 k perl-libs x86_64 4:5.10.1-136.el6_6.1 updates 578 k perl-version x86_64 3:0.77-136.el6_6.1 updates 51 k Transaction Summary ============================================================================================================================================================================ Install 5 Package(s) Upgrade 6 Package(s) Total size: 37 M Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Transaction Check Error: file /usr/share/mysql/charsets/Index.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/armscii8.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/ascii.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp1250.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp1256.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp1257.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp850.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp852.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/cp866.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/dec8.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/geostd8.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/greek.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/hebrew.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/hp8.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/keybcs2.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/koi8r.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/koi8u.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/latin1.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/latin2.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/latin5.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/latin7.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/macce.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/macroman.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/charsets/swe7.xml from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/czech/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/danish/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/dutch/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/english/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/estonian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/french/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/german/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/greek/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/hungarian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/italian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/japanese/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/korean/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/norwegian-ny/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/norwegian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/polish/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/portuguese/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/romanian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/russian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/serbian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/slovak/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/spanish/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/swedish/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 file /usr/share/mysql/ukrainian/errmsg.sys from install of mysql-libs-5.1.73-5.el6_6.x86_64 conflicts with file from package MySQL-server-5.6.16-1.el6.x86_64 Error Summary
原因是我安装的是5.6版本，而这个的依赖却是需要用5.1的，故会冲突，可以用percona官网的源可以避免此冲突：
操作方法如下：
vi /etc/yum.repos.d/Percona.repo [percona] name = CentOS $releasever - Percona baseurl=http://repo.percona.com/centos/$releasever/os/$basearch/ enabled = 1 gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-percona gpgcheck = 1
vi /etc/pki/rpm-gpg/RPM-GPG-KEY-percona -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.4.9 (GNU/Linux) mQGiBEsm3aERBACyB1E9ixebIMRGtmD45c6c/wi2IVIa6O3G1f6cyHH4ump6ejOi AX63hhEs4MUCGO7KnON1hpjuNN7MQZtGTJC0iX97X2Mk+IwB1KmBYN9sS/OqhA5C itj2RAkug4PFHR9dy21v0flj66KjBS3GpuOadpcrZ/k0g7Zi6t7kDWV0hwCgxCa2 f/ESC2MN3q3j9hfMTBhhDCsD/3+iOxtDAUlPMIH50MdK5yqagdj8V/sxaHJ5u/zw YQunRlhB9f9QUFfhfnjRn8wjeYasMARDctCde5nbx3Pc+nRIXoB4D1Z1ZxRzR/lb 7S4i8KRr9xhommFnDv/egkx+7X1aFp1f2wN2DQ4ecGF4EAAVHwFz8H4eQgsbLsa6 7DV3BACj1cBwCf8tckWsvFtQfCP4CiBB50Ku49MU2Nfwq7durfIiePF4IIYRDZgg kHKSfP3oUZBGJx00BujtTobERraaV7lIRIwETZao76MqGt9K1uIqw4NT/jAbi9ce rFaOmAkaujbcB11HYIyjtkAGq9mXxaVqCC3RPWGr+fqAx/akBLQ2UGVyY29uYSBN eVNRTCBEZXZlbG9wbWVudCBUZWFtIDxteXNxbC1kZXZAcGVyY29uYS5jb20+iGAE ExECACAFAksm3aECGwMGCwkIBwMCBBUCCAMEFgIDAQIeAQIXgAAKCRAcTL3NzS79 Kpk/AKCQKSEgwX9r8jR+6tAnCVpzyUFOQwCfX+fw3OAoYeFZB3eu2oT8OBTiVYu5 Ag0ESybdoRAIAKKUV8rbqlB8qwZdWlmrwQqg3o7OpoAJ53/QOIySDmqy5TmNEPLm lHkwGqEqfbFYoTbOCEEJi2yFLg9UJCSBM/sfPaqb2jGP7fc0nZBgUBnFuA9USX72 O0PzVAF7rCnWaIz76iY+AMI6xKeRy91TxYo/yenF1nRSJ+rExwlPcHgI685GNuFG chAExMTgbnoPx1ka1Vqbe6iza+FnJq3f4p9luGbZdSParGdlKhGqvVUJ3FLeLTqt caOn5cN2ZsdakE07GzdSktVtdYPT5BNMKgOAxhXKy11IPLj2Z5C33iVYSXjpTelJ b2qHvcg9XDMhmYJyE3O4AWFh2no3Jf4ypIcABA0IAJO8ms9ov6bFqFTqA0UW2gWQ cKFN4Q6NPV6IW0rV61ONLUc0VFXvYDtwsRbUmUYkB/L/R9fHj4lRUDbGEQrLCoE+ /HyYvr2rxP94PT6Bkjk/aiCCPAKZRj5CFUKRpShfDIiow9qxtqv7yVd514Qqmjb4 eEihtcjltGAoS54+6C3lbjrHUQhLwPGqlAh8uZKzfSZq0C06kTxiEqsG6VDDYWy6 L7qaMwOqWdQtdekKiCk8w/FoovsMYED2qlWEt0i52G+0CjoRFx2zNsN3v4dWiIhk ZSL00Mx+g3NA7pQ1Yo5Vhok034mP8L2fBLhhWaK3LG63jYvd0HLkUFhNG+xjkpeI SQQYEQIACQUCSybdoQIbDAAKCRAcTL3NzS79KlacAJ0aAkBQapIaHNvmAhtVjLPN wke4ZgCePe3sPPF49lBal7QaYPdjqapa1SQ= =qcCk -----END PGP PUBLIC KEY BLOCK-----
执行完此操作后可用yum list | grep backup查看当前相关的备份工具
[root@host2 MySQL]# yum list | grep backup percona-xtrabackup.x86_64 2.2.11-1.el6 @percona percona-xtrabackup-20.x86_64 2.0.8-587.rhel6 percona percona-xtrabackup-20-debuginfo.x86_64 2.0.8-587.rhel6 percona percona-xtrabackup-20-test.x86_64 2.0.8-587.rhel6 percona percona-xtrabackup-21.x86_64 2.1.9-746.rhel6 percona percona-xtrabackup-21-debuginfo.x86_64 2.1.9-746.rhel6 percona percona-xtrabackup-debuginfo.x86_64 2.2.11-1.el6 percona percona-xtrabackup-test.x86_64 2.2.11-1.el6 percona percona-xtrabackup-test-21.x86_64 2.1.9-746.rhel6 percona
最后执行：
yum install percona-xtrabackup
就可以顺利安装了。