MYSQL PXC | 易学教程

下载ssl101的安装包上传服务器对应安装目录/usr/local 目录。

[root@localhost ~]# yum -y install openssl openssl-devel perl-Time-HiRes perl-DBD-MySQL.x86_64 perl-IO-Socket-SSL.noarch

[root@pxc2 ~]# rpm -ivh libev-4.15-1.el6.rf.x86_64.rpm

warning: libev-4.15-1.el6.rf.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY

Preparing... ########################################### [100%]

1:libev ########################################### [100%]

[root@pxc2 local]# yum install percona-xtrabackup-24-2.4.9-1.el6.x86_64.rpm -y

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

base | 4.0 kB 00:00 ...

base/primary_db | 4.4 MB 00:00 ...

Setting up Install Process

在PXC其他节点加入集群过程中发现有报错，日志提示 xtrabackup版本过低。

[root@pxc2 ~]# yum list | grep percona-xtrabackup

percona-xtrabackup-24.x86_64 2.4.9-1.el6 @/percona-xtrabackup-24-2.4.9-1.el6.x86_64

[root@pxc2 ~]# rpm -e percona-xtrabackup-24.x86_64

[root@pxc2 ~]# yum list | grep percona-xtrabackup

[root@pxc2 ~]# yum install percona-xtrabackup-24-2.4.19-1.el6.x86_64.rpm -y

Loaded plugins: fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

Setting up Install Process

Examining percona-xtrabackup-24-2.4.19-1.el6.x86_64.rpm: percona-xtrabackup-24-2.4.19-1.el6.x86_64

Marking percona-xtrabackup-24-2.4.19-1.el6.x86_64.rpm to be installed

Resolving Dependencies

--> Running transaction check

---> Package percona-xtrabackup-24.x86_64 0:2.4.19-1.el6 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================================================================================================================================

Package Arch Version Repository Size

Installing:

percona-xtrabackup-24 x86_64 2.4.19-1.el6 /percona-xtrabackup-24-2.4.19-1.el6.x86_64 32 M

Transaction Summary

Install 1 Package(s)

Total size: 32 M

Installed size: 32 M

Downloading Packages:

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Warning: RPMDB altered outside of yum.

Installing : percona-xtrabackup-24-2.4.19-1.el6.x86_64 1/1

Verifying : percona-xtrabackup-24-2.4.19-1.el6.x86_64 1/1

Installed:

percona-xtrabackup-24.x86_64 0:2.4.19-1.el6

Complete!

1.1.1 socat 安装

[root@pxc2 local]# tar -zxvf socat-1.7.3.2.tar.gz

./configure

make

make install

解压软件包并赋予权限

# cd /usr/local/

# unlink mysql

# tar -zxvf Percona-XtraDB-Cluster-5.7.28-rel31-31.41.1.Linux.x86_64.ssl101.tar.gz

# ln -s Percona-XtraDB-Cluster-5.7.28-rel31-31.41.1.Linux.x86_64.ssl101 mysql

修改PXC配置文件：

修改/etc/my.cnf配置文件如下：

server-id=1313306

pxc_strict_mode=PERMISSIVE

default_storage_engine=Innodb

innodb_autoinc_lock_mode=2

wsrep_node_name=PXC1

wsrep_cluster_name=pxc_cluster

wsrep_cluster_address=gcomm://192.168.56.121,192.168.56.130,192.168.56.122

wsrep_node_address=192.168.56.121

wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so

wsrep_provider_options="gcache.size=1G"

wsrep_sst_method=xtrabackup-v2

wsrep_sst_auth="sst:kk"

初始化数据库：

[root@PXC2bin]# ./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql --datadir=/data/mysql/ --user=mysql --initialize

[root@PXC2bin]# cd /usr/local/mysql/support-files/

启动第一个节点：

root@PXC1 support-files]# cp mysql.server /etc/init.d/mysqld

[root@PXC1 support-files]# /etc/init.d/mysqld --help

Usage: mysqld {start|stop|restart|restart-bootstrap|reload|force-reload|status|bootstrap-pxc} [ MySQL (Percona XtraDB Cluster) options ]

[root@PXC1 support-files]#

[root@PXC1 support-files]# /etc/init.d/mysqld bootstrap-pxc

Bootstrapping PXC (Percona XtraDB Cluster)Starting MySQL (P[ OK ]traDB Cluster).

[root@PXC1 support-files]# ps -ef|grep mysql

root 81433 79865 0 01:19 pts/1 00:00:00 tail -fn100 /data/mysql/mysqld.log

root 83678 1 0 02:34 pts/2 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/data/mysql --pid-file=/data/mysql/mysqld.pid --wsrep-new-cluster

mysql 84011 83678 18 02:34 pts/2 00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=/usr/local/mysql/lib/mysql/plugin --user=mysql --wsrep-new-cluster --log-error=/data/mysql/mysqld.log --pid-file=/data/mysql/mysqld.pid --socket=/data/mysql/mysql.sock --port=3306 --wsrep_start_position=00000000-0000-0000-0000-000000000000:-1

root 84045 75479 0 02:34 pts/2 00:00:00 grep mysql

[root@PXC1 support-files]#

因为初始root 密码，以为safe 模式启动。

[root@PXC1 support-files]# /etc/init.d/mysqld stop bootstrap-pxc

Shutting down MySQL (Percona XtraDB Cluster)... [ OK ]

[root@PXC1support-files]#

[root@PXC1support-files]# /usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf --skip-grant-tables --ledir=/usr/local/mysql/bin --wsrep_new_cluster &

[1] 84431

mysql>update mysql.user set authentication_string=password('mysql123') where user='root' and Host = 'localhost';

mysql> flush privileges;

重置好密码后，正常启动PXC

[root@pxc1 ~]# service mysqld bootstrap-pxc stop

[root@pxc1 ~]#service mysqld bootstrap-pxc start

Bootstrapping PXC (Percona XtraDB Cluster)Starting MySQL (P[ OK ]traDB Cluster)..

创建SST传输账号：

mysql> CREATE USER 'sst'@'localhost' IDENTIFIED BY 'kk';

Query OK, 0 rows affected (0.00 sec)

mysql> CREATE USER 'sst'@'%' IDENTIFIED BY 'kk';

Query OK, 0 rows affected (0.00 sec)