PXC5.7.21 for linux7.2安裝
--軟件下載
https://www.percona.com/downloads/Percona-XtraDB-Cluster-57/LATEST/
--基礎環境準備
[root@node2 ~]# vim /etc/hosts ---在3個節點hosts文件加入如下信息
192.168.2.100 node1
192.168.2.200 node2
192.168.2.210 node3
[root@localhost ~]# rpm -e --nodeps mariadb mariadb-server mariadb-libs marisa --卸載
1、3個節點安裝依賴包
yum install -y git scons gcc* gcc-c++ openssl* check cmake bison boost-devel asio-devel libaio-devel ncurses-devel readline-devel pam-devel socat perl-time-hires perl-io-socket-ssl.noarch perl-dbd-mysql.x86_64
--解壓軟件包,並安裝:
下載軟件包要註意:切記選擇ssl101版本,官方使用手冊上有如下說明
[root@localhost ~]# rpm -ivh libev-4.15-1.el6.rf.x86_64.rpm [root@localhost ~]# rpm -ivh percona-xtrabackup-24-2.4.11-1.el7.x86_64.rpm [root@node1 ~]# tar zxvf Percona-XtraDB-Cluster-5.7.21-rel20-29.26.1.Linux.x86_64.ssl101.tar.gz -C /usr/local/^C [root@node1 ~]# cd /usr/local/ [root@node1 local]# ln -s Percona-XtraDB-Cluster-5.7.21-rel20-29.26.1.Linux.x86_64.ssl101.tar.gz pxc_mysql
2、創建用戶,新建文件夾請授權【三個節點都要操作】 :
[root@localhost ~]# userdel mysql [root@localhost ~]# useradd -g mysql mysql [root@localhost ~]# passwd mysql [root@localhost ~]# mkdir -p /usr/local/pxc_mysql/{data,logs,tmp} [root@localhost ~]# mkdir -p /usr/local/pxc_mysql/logs/binlog [root@localhost ~]# chown -R mysql:mysql /usr/local/pxc_mysql/ [root@localhost ~]# chmod -R +x /usr/local/pxc_mysql/
3、切換mysql用戶創建my.cnf (該配置文件只簡單的幾個參數,如果生產環境需要更多的數據庫參數)
[root@node1 ~]# su - mysql [mysql@node1 ~]$ cd /usr/local/pxc_mysql/ [mysql@node1 pxc_mysql]$ vi my.cnf [client] socket=/usr/local/pxc_mysql/data [mysqld] server-id=142 port = 3306 basedir=/usr/local/pxc_mysql datadir=/usr/local/pxc_mysql/data socket=/usr/local/pxc_mysql/data/mysql.sock log-error=/usr/local/pxc_mysql/data/mysqld.log pid-file=/usr/local/pxc_mysql/data/mysqld.pid log-bin=/usr/local/pxc_mysql/logs slow_query_log_file = /usr/local/pxc_mysql/data/slow.log log_slave_updates expire_logs_days=7 binlog_format=ROW innodb_buffer_pool_size = 1524M #pxc wsrep_provider=/usr/local/pxc_mysql/lib/libgalera_smm.so wsrep_cluster_name=pxc-nie wsrep_cluster_address=gcomm://192.168.2.100,192.168.2.200,192.168.2.210 wsrep_node_name=node1 wsrep_node_address=192.168.2.100 wsrep_sst_method=xtrabackup-v2 wsrep_sst_auth=pxc:123456 pxc_strict_mode=ENFORCING binlog_format=ROW default_storage_engine=InnoDB innodb_autoinc_lock_mode=2
註意:
其他兩個個節點,只需要修改:
server-id=142 --id不能一樣
wsrep_node_name=node1 --改成自己節點的主機名
wsrep_node_address=192.168.2.100 --改成自己節點的主機IP
4、初始化3個節點的數據庫
/usr/local/pxc_mysql/bin/mysqld --defaults-file=/usr/local/pxc_mysql/my.cnf --datadir=/usr/local/pxc_mysql/data --basedir=/usr/local/pxc_mysql --initialize
(在/usr/local/pxc_mysql/data/mysqld.log這個日誌裏有root的密碼)
5、首先啟動第一個節點:
[root@node1 pxc_mysql]# /usr/local/pxc_mysql/bin/mysqld_safe --defaults-file=/usr/local/pxc_mysql/my.cnf --wsrep-new-cluster --user=mysql & ---用root起
然後進入MySQL,執行如下操作(如果進不去,報錯密碼過期,那麽在my.cnf文件加入:skip-grant-tables,然後無密碼進入數據庫: update mysql.user set password_expired="N" where user="root"; 最後把參數從配置文件去掉,重啟數據庫,用剛才的root密碼進入即可。)
MySQL [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec) MySQL [(none)]> show status like 'wsrep_local_state%'; +---------------------------+--------------------------------------+ | Variable_name | Value | +---------------------------+--------------------------------------+ | wsrep_local_state_uuid | c2ab52e7-67cf-11e8-9d02-e76acee85210 | | wsrep_local_state | 4 | | wsrep_local_state_comment | Synced | +---------------------------+--------------------------------------+ 3 rows in set (0.00 sec) MySQL [(none)]> show status like 'wsrep_cluster_%'; +--------------------------+--------------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------------+ | wsrep_cluster_conf_id | 1 | | wsrep_cluster_size | 1 | | wsrep_cluster_state_uuid | c2ab52e7-67cf-11e8-9d02-e76acee85210 | | wsrep_cluster_status | Primary | +--------------------------+--------------------------------------+ 4 rows in set (0.00 sec) MySQL [(none)]> GRANT RELOAD, LOCK TABLES, PROCESS, REPLICATION CLIENT ON *.* TO 'pxc'@'%' IDENTIFIED BY '123456'; ---創建一個SST用戶 MySQL [(none)]> flush privileges;
(從上面的信息集群大小為1個節點,狀態為primary,節點處於Synced狀態,它已完全連接,可以進行write-set replication。 )
6、依次啟動第二、第三個節點:
[root@node2 pxc_mysql]# /usr/local/pxc_mysql/bin/mysqld_safe --defaults-file=/usr/local/pxc_mysql/my.cnf --user=mysql &
7、驗證集群部署成功:
在各個節點查看:
MySQL [(none)]> show status like 'wsrep_cluster_%'; +--------------------------+--------------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------------+ | wsrep_cluster_conf_id | 5 | | wsrep_cluster_size | 3 | ---現在是3個節點都加入了集群 | wsrep_cluster_state_uuid | c2ab52e7-67cf-11e8-9d02-e76acee85210 | | wsrep_cluster_status | Primary | +--------------------------+--------------------------------------+
在其中一個節點創建表或數據庫 看看是否3個節點都同步完成。
PXC5.7.21 for linux7.2安裝