使用 xtrabackup 的技巧来设置成为新的 slave 节点
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这篇文章主要为大家展示了“怎么用xtrabackup工具创建slave节点”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“怎么用xtrabackup工具创建slave节点”这篇文章吧。 xtrabackup安装和备份方法等请先参考我的另一篇博客 http://blog.itpub.net/20893244/viewspace-2133530/ 环境: master ip：192.168.3.171 slave ip: 192.168.3.173 mysql版本： (root@localhost) [gldb]> select version(); +------------+ | version() | +------------+ | 5.7.17-log | +------------+ 1 row in set (0.00 sec) 用xtrabackup工具创建slave节点需要七步骤，我们一步一步操作 一.在master节点完整备份数据 innobackupex --defaults-file=/etc/my.cnf --host=oracle11gtest --user=xtrabk --parallel=4 --password=onlybackupgl --extra-lsndir=/alidata1/mysqlbackup/mysql_full --stream=tar /tmp | gzip > /alidata1/mysqlbackup/mysql_full/xtra_fullbak_2017-02-20.tar.gz 二.复制和准备备份集 1.把备份集拷贝到slave端 scp -r /alidata1/mysqlbackup/mysql_full root@192.168.3.173:/alidata1/mysqldata/mysqlbackup 2.在slave端解压备份集 tar -xzvf xtra_fullbak_2017-02-20.tar 3.准备数据，执行innobackupex命令附加--apply-log参数 innobackupex --apply-log /alidata1/mysqldata/mysqlbackup/mysql_full 三.创建复制环境专用账户并赋予权限 create user repl@'192.168.3.173'; grant replication slave on *.* to repl identified by 'replmysql'; 四.配置slave节点的初始化参数 从master端拷贝到slave端，还是用scp命令； 在slave端修改初始化文件,把server_id修改为一个非0的值 启动数据库 mysqld_safe --defaults-file=/etc/my.cnf & 五.配置slave节点复制环境 查看xtrabackup_binlog_info文件里的数据 [root@mysqltest mysql_full]# more xtrabackup_binlog_info mysql-bin.000016 1884 执行change masger命令 change master to master_host='192.168.3.171', master_port=3306, master_user='repl', master_password='replmysql', master_log_file='mysql-bin.000016', master_log_pos=1884; 执行start slave命令 mysql > start slave; 六.检查 (root@localhost) [(none)]> show slave status \G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.3.171 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000016 Read_Master_Log_Pos: 3631 Relay_Log_File: mysqltest-relay-bin.000002 Relay_Log_Pos: 2067 Relay_Master_Log_File: mysql-bin.000016 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 3631 Relay_Log_Space: 2278 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 2 Master_UUID: 659e33c7-f1ef-11e6-8e3e-00163e3225da Master_Info_File: /alidata1/mysqldata/3306/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) 七.测试 在master端创建一个表 (root@localhost) [(none)]> use gldb Database changed (root@localhost) [gldb]> create table gl (abcd varchar(20)); Query OK, 0 rows affected (0.51 sec) 在slave端查询是否通过成功 (root@localhost) [(none)]> use gldb; Database changed (root@localhost) [gldb]> show create table gl; +-------+--------------------------------------------------------------------------------------------+ | Table | Create Table | +-------+--------------------------------------------------------------------------------------------+ | gl | CREATE TABLE `gl` ( `abcd` varchar(20) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8 | +-------+--------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) 以上是“怎么用xtrabackup工具创建slave节点”这篇文章的所有内容，感谢各位的阅读！ （编辑：银川站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
