针对MySQL衍生版本选择MariaDB还是Percona目前还有很多不一致的观点，上一篇文章讲了如何在Centos 7.2系统上安装最新的MariaDB 10.1.19，这篇文章再来讲解下如何在CentOS 7.2上安装最新的 Percona 5.7。
方案一：通过yum安装
安装Percona源：
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yum install http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm |
测试安装的源：
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yum list | grep percona |
完成后就可以直接进行安装：
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yum install Percona-Server-server-57 |
启动、停止MySQL操作：
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service mysql start service mysql status service mysql stop service mysql resta chkconfig mysqld on |
如果需要安装TokuDB，执行：
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yum install Percona-Server-tokudb-57.x86_64 |
然后设置初始密码：
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mysql_secure_installation |
发现这里的初始密码与并不为空，报错信息如下：
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[root@localhost my.cnf.d]# mysql_secure_installation Securing the MySQL server deployment. Enter password for user root: Error: Access denied for user 'root'@'localhost' (using password: NO) |
经过查询得知Percona 5.7安装时默认会产生个随机的密码，存在日志中，查看方法：
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cat /var/log/mysqld.log | grep "A temporary password" | awk -F " " '{print$11}' |
参考链接：
- https://www.percona.com/doc/percona-server/5.7/installation/yum_repo.html
- https://www.percona.com/doc/percona-server/5.7/tokudb/tokudb_installation.html#tokudb-installation
在安装完成后再次执行 yum update 会产生错误信息：
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[root@localhost ~]# yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.cn99.com * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package Percona-Server-shared-55.x86_64 0:5.5.53-rel38.4.el7 will be obsoleting ---> Package Percona-Server-shared-56.x86_64 0:5.6.33-rel79.0.el7 will be obsoleting ---> Package Percona-XtraDB-Cluster-shared-55.x86_64 1:5.5.41-25.12.855.el7 will be obsoleting ---> Package Percona-XtraDB-Cluster-shared-56.x86_64 1:5.6.32-25.17.1.el7 will be obsoleting ---> Package Percona-XtraDB-Cluster-shared-57.x86_64 0:5.7.14-26.17.1.el7 will be obsoleting ---> Package Percona-XtraDB-Cluster-shared-compat-57.x86_64 0:5.7.14-26.17.1.el7 will be obsoleting ---> Package mariadb-libs.x86_64 1:5.5.50-1.el7_2 will be obsoleted ---> Package percona-release.noarch 0:0.1-3 will be updated ---> Package percona-release.noarch 0:0.1-4 will be an update --> Processing Conflict: Percona-Server-shared-compat-57-5.7.15-9.1.el7.x86_64 conflicts Percona-Server-shared-55 --> Processing Conflict: Percona-Server-shared-compat-57-5.7.15-9.1.el7.x86_64 conflicts Percona-Server-shared-56 --> Processing Conflict: Percona-XtraDB-Cluster-shared-compat-57-5.7.14-26.17.1.el7.x86_64 conflicts Percona-XtraDB-Cluster-shared-56 --> Processing Conflict: Percona-XtraDB-Cluster-shared-compat-57-5.7.14-26.17.1.el7.x86_64 conflicts Percona-XtraDB-Cluster-shared-55 --> Processing Conflict: 1:Percona-XtraDB-Cluster-shared-55-5.5.41-25.12.855.el7.x86_64 conflicts Percona-XtraDB-Cluster-shared-56 --> Processing Conflict: 1:Percona-XtraDB-Cluster-shared-55-5.5.41-25.12.855.el7.x86_64 conflicts Percona-Server-shared-55 --> Processing Conflict: 1:Percona-XtraDB-Cluster-shared-56-5.6.32-25.17.1.el7.x86_64 conflicts Percona-Server-shared-56 --> Processing Conflict: Percona-Server-shared-56-5.6.33-rel79.0.el7.x86_64 conflicts Percona-Server-shared-55 --> Processing Conflict: Percona-XtraDB-Cluster-shared-57-5.7.14-26.17.1.el7.x86_64 conflicts Percona-Server-shared-56 --> Processing Conflict: Percona-Server-shared-55-5.5.53-rel38.4.el7.x86_64 conflicts Percona-Server-shared-56 --> Finished Dependency Resolution Error: Percona-Server-shared-55 conflicts with Percona-Server-shared-56-5.6.33-rel79.0.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-55 conflicts with 1:Percona-XtraDB-Cluster-shared-56-5.6.32-25.17.1.el7.x86_64 Error: Percona-Server-shared-compat-57 conflicts with Percona-Server-shared-56-5.6.33-rel79.0.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-57 conflicts with Percona-Server-shared-56-5.6.33-rel79.0.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-compat-57 conflicts with 1:Percona-XtraDB-Cluster-shared-56-5.6.32-25.17.1.el7.x86_64 Error: Percona-Server-shared-compat-57 conflicts with Percona-Server-shared-55-5.5.53-rel38.4.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-56 conflicts with Percona-Server-shared-56-5.6.33-rel79.0.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-55 conflicts with Percona-Server-shared-55-5.5.53-rel38.4.el7.x86_64 Error: Percona-Server-shared-56 conflicts with Percona-Server-shared-55-5.5.53-rel38.4.el7.x86_64 Error: Percona-XtraDB-Cluster-shared-compat-57 conflicts with 1:Percona-XtraDB-Cluster-shared-55-5.5.41-25.12.855.el7.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest |
具体导致的原因和解决方法没有找到比较好的，目前的处理方式是删除源：
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rm /etc/yum.repos.d/percona-release.repo |
方案二：下载二进制文件安装（推荐）
到页面https://www.percona.com/downloads/Percona-Server-5.7/LATEST/ 选择对应的版本进行下载。
安装方法： rpm -ivh rpm文件
| Download All Packages Together | |
|---|---|
| Percona-Server-5.7.15-9-r9f0fd0a-el7-x86_64-bundle.tar | 166.0 MB |
| Download Packages Separately | |
| Percona-Server-57-debuginfo-5.7.15-9.1.el7.x86_64.rpm | 89.9 MB |
| Percona-Server-client-57-5.7.15-9.1.el7.x86_64.rpm | 7.1 MB |
| Percona-Server-devel-57-5.7.15-9.1.el7.x86_64.rpm | 1.1 MB |
| Percona-Server-server-57-5.7.15-9.1.el7.x86_64.rpm | 37.5 MB |
| Percona-Server-shared-57-5.7.15-9.1.el7.x86_64.rpm | 747 KB |
| Percona-Server-shared-compat-57-5.7.15-9.1.el7.x86_64.rpm | 1.2 MB |
| Percona-Server-test-57-5.7.15-9.1.el7.x86_64.rpm | 26.9 MB |
| Percona-Server-tokudb-57-5.7.15-9.1.el7.x86_64.rpm | 1.5 MB |
推荐安装：
- Percona-Server-server-57-5.7.15-9.1.el7.x86_64.rpm
- Percona-Server-client-57-5.7.15-9.1.el7.x86_64.rpm
- Percona-Server-tokudb-57-5.7.15-9.1.el7.x86_64.rpm
更多补充，尽请期待。
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