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这篇文章主要介绍“PXC5.7 的安装步骤”，在日常操作中，相信很多人在 PXC5.7 的安装步骤问题上存在疑惑，丸趣 TV 小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”PXC5.7 的安装步骤”的疑惑有所帮助！接下来，请跟着丸趣 TV 小编一起来学习吧！
节点分配
IP
hostname
用途
192.168.137.201
c1
node1
192.168.137.202
c2
node2
192.168.137.203
c3
node3
需要的包
percona-xtrabackup-24-2.4.7-2.el6.x86_64.rpm
Percona-XtraDB-Cluster-5.7.18-rel15-29.20.1.Linux.x86_64.ssl101.tar.gz
安装 epel 源（所有节点）
centos6
rpm -ivh http://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
centos7
rpm -ivh http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
安装依赖包
yum install perl-IO-Socket-SSL perl-DBD-MySQL perl-Time-HiRes socat nc -y
安装 xtrabackup
wget https://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.7/binary/redhat/6/x86_64/percona-xtrabackup-24-2.4.7-2.el6.x86_64.rpm
rpm -ivh percona-xtrabackup-24-2.4.7-2.el6.x86_64.rpm
数据库初始化
/usr/local/mysql/bin/mysqld –defaults-file=/etc/my.cnf –basedir=/usr/local/mysql –datadir=/data/mysql/mysql3306/data –user=mysql –initialize
修改 mysqld_safe 启动文件
##### 具体需要替换的路径根据安装的包名称去 mysqld_safe 文件中查询 #############
sed -i s#/mnt/workspace/percona-xtradb-cluster-5.7-binary-tarball/label_exp/centos6-64/Percona-XtraDB-Cluster-5.7.18-29.20/346/usr/local/Percona-XtraDB-Cluster-5.7.18-rel15-29.20.1.Linux.x86_64.ssl101#/usr/local/mysql#g /usr/local/mysql/bin/mysqld_safe
vi /usr/local/mysql/support-files/mysql.server
basedir=/usr/local/mysql
datadir=/data/mysql/mysql3306/data
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
chmod 755 /etc/init.d/mysql
添加 PXC 相关的参数
vi /etc/my.cnf
[mysqld]
…
#PXC
wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so
wsrep_cluster_address=gcomm://192.168.137.201,192.168.137.202,192.168.137.203
wsrep_node_address=192.168.137.201
wsrep_slave_threads=2
innodb_autoinc_lock_mode=2
binlog_format = ROW
default_storage_engine=InnoDB
wsrep_cluster_name=pxc-jiangzq
wsrep_sst_auth=sst:jiangzq
wsrep_sst_method=xtrabackup-v2
检查环境
[root@c1 xtrabackup]# /etc/init.d/mysql –help
Usage: mysql {start|stop|restart|restart-bootstrap|reload|force-reload|status|bootstrap-pxc} [MySQL (Percona XtraDB Cluster) options ]
启动第一个节点
shell /etc/init.d/mysql bootstrap-pxc
/usr/local/mysql/bin/mysqld_safe –defaults-file=/etc/my.cnf bootstrap-pxc
/usr/local/mysql/bin/mysqld –defaults-file=/etc/my.cnf bootstrap-pxc
修改 root 密码和添加 sst 账户
alter user user() identified by root
create user sst @ localhost identified by jiangz
grant all on *.* to sst @ localhost
将整个虚拟机再克隆两个
##### 修改主机名
shell hostname c2
shell vi /etc/sysconfig/network
hostname=c2
##### 修改 ip 地址
shell vi /etc/sysconfig/network-script/ifcfg-eth0
shell service network restart
##### 修改 mysql 配置文件
shell vi /etc/my.cnf
server-id=203306
pid-file = c2.pid
wsrep_node_address=192.168.137.202
第 2、3 个节点启动
shell /etc/init.d/mysql
遇到的错误
############## 启动第二个节点报的错误 ###############
2017-07-18T06:40:24.829678Z 0 [ERROR] WSREP: Failed to read ready from: wsrep_sst_xtrabackup-v2 –role joiner –address 192.168.137.202 –datadir /data/mysql/mysql3306/data/ –defaults-file /etc/my.cnf –defaults-group-suffix –parent 10520 –binlog /data/mysql/mysql3306/logs/mysql-bin
Read: (null)
2017-07-18T06:40:24.829714Z 0 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 –role joiner –address 192.168.137.202
–datadir /data/mysql/mysql3306/data/ –defaults-file /etc/my.cnf –defaults-group-suffix –parent 10520 –binlog /data/mysql/mysql3306/logs/mysql-bin :
2 (No such file or directory)
selinux 没关和 xtrabackup 版本太低
日常启动关闭
#/etc/init.d/mysql stop
全部节点关闭后重启
第一个节点启动的节点（如果集群全部关闭，第一个起动也需要用这样的形式）
#/etc/init.d/mysql bootstrap-pxc
其它节点
#/etc/init.d/mysql start
备注：
如集群是不是所有的节点都关闭不用使 #/etc/init.d/mysql bootstrap-pxc 启动。都可以用
#/etc/init.d/mysql start
启动。
到此，关于“PXC5.7 的安装步骤”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注丸趣 TV 网站，丸趣 TV 小编会继续努力为大家带来更多实用的文章！
