由于之前服务器安装的xtrabackup比较老的版本，不支持mysql 5.7的热备，需要升级下版本或新服务器部署2.4.版本。这里我们官网https://www.percona.com/downloads/XtraBackup/ 下载最新版
安装方法:
Ubuntu环境下安装 ：
1，单独安装deb包：
1，下载： wget https://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.4/binary/debian/jessie/x86_64/percona-xtrabackup-24_2.4.4-1.jessie_amd64.deb
2，安装
$ sudo dpkg -i percona-xtrabackup-24_2.4.4-1.jessie_amd64.deb
注意：
当这样手动安装软件包时，您需要确保解决所有的依赖关系并自己安装缺少的软件包。
2，通过仓库安装
What’s in each DEB package?
The percona-xtrabackup-24 package contains the latest Percona XtraBackup GA binaries and associated files.
The percona-xtrabackup-dbg-24 package contains the debug symbols for binaries in percona-xtrabackup-24.
The percona-xtrabackup-test-24 package contains the test suite for Percona XtraBackup.
The percona-xtrabackup-2x package contains the older version of the Percona XtraBackup.
Installing Percona XtraBackup from Percona apt repository
- Fetch the repository packages from Percona web:
$ wget https://repo.percona.com/apt/percona-release_0.1-4.$(lsb_release -sc)_all.deb
- Install the downloaded package with dpkg. To do that, run the following commands as root or with sudo:
$ sudo dpkg -i percona-release_0.1-4.$(lsb_release -sc)_all.deb
Once you install this package the Percona repositories should be added. You can check the repository setup in the/etc/apt/sources.list.d/percona-release.list file.
- Remember to update the local cache:
$ sudo apt-get update
- After that you can install the package:
$ sudo apt-get install percona-xtrabackup-24
Remove Percona XtraBackup
sudo apt-get remove percona-xtrabackup-24
CentOS下安装
1，添加源
yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm
2，测试包
yum list | grep percona
percona-xtrabackup-20.x86_64 2.0.8-587.rhel5
percona-release-x86_64
percona-xtrabackup-20-debuginfo.x86_64 2.0.8-587.rhel5 percona-release-x86_64
percona-xtrabackup-20-test.x86_64 2.0.8-587.rhel5 percona-release-x86_64
percona-xtrabackup-21.x86_64 2.1.9-746.rhel5 percona-release-x86_64
percona-xtrabackup-21-debuginfo.x86_64 2.1.9-746.rhel5
3，安装
yum install percona-xtrabackup-24
为了成功安装Percona XtraBackup libev包将需要先安装。 可以从EPEL存储库安装libev软件包。