mysql dump gtid_基于mysqldump搭建GTID主从
1、演示环境
mysql> system cat /etc/RedHat-release
CentOS release 6.7 (Final)
mysql> show variables like 'version';
+---------------+------------+
| Variable_name | Value |
+---------------+------------+
| version | 5.7.12-log |
+---------------+------------+
主服务器：192.168.1.245:3306 server_id : 245
从服务器：192.168.1.247:3306 server_id : 247
--在主库端创建复制用户
mysql> GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'repl'@'%' IDENTIFIED BY '123456';
2、直接使用change master(针对本文第一部分，第1小点情形)
此处省略基于gtid配置的参数描述，具体可以参考：配置MySQL GTID 主从复制
在从服务器端直接change master，如下：
SLAVE> show variables like 'server_id';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| server_id | 247 |
+---------------+-------+
Slave> CHANGE MASTER TO
-> MASTER_HOST='192.168.1.245',
-> MASTER_USER='repl',
-> MASTER_PASSWORD='123456',
-> MASTER_PORT=3306,
-> MASTER_AUTO_POSITION = 1;
Query OK, 0 rows affected, 2 warnings (0.12 sec)
Slave> start slave;
Query OK, 0 rows affected (0.01 sec)
Slave> start slave;
Query OK, 0 rows affected (0.01 sec)
Slave> show slave status \G
***************************1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.245
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: node3-binlog.000001
Read_Master_Log_Pos: 457
Relay_Log_File: node5-relay-bin.000002
Relay_Log_Pos: 676
Relay_Master_Log_File: node3-binlog.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...............
--主服务器端操作如下
Master> create database tempdb;
Query OK, 1 row affected (0.02 sec)
Master> use tempdb
Database changed
Master> create table t1(id int,ename varchar(20));
Query OK, 0 rows affected (0.09 sec)
Master> insert into t1 values(1,'leshami');
Query OK, 1 row affected (0.08 sec)
--从服务器端验证
Slave> select * from tempdb.t1;
+------+---------+
| id | ename |
+------+---------+
| 1 | leshami |
+------+---------+
1 row in set (0.01 sec)
3、基于mysqldump搭建gtid从库
--准备环境，从库端执行
Slave> stop slave; --停止重库
Query OK, 0 rows affected (0.01 sec)
Slave> reset slave all; --重置主从配置信息
Query OK, 0 rows affected (0.02 sec)
--准备环境，主库端执行
Master> source sakila-db/sakila-schema.sql --导入mysql自带的sakila数据库
Master> source sakila-db/sakila-data.sql --填充数据
--使用mysqldump导出数据库
# mysqldump --all-databases --single-transaction --triggers --routines --events \
> --host=localhost --port=3306 --user=root --password=MyP@ssw0rd >/tmp/alldb.sql
--导出的文件中已经包含了GTID_PURGED的信息
# grep GTID_PURGED /tmp/alldb.sql
SET @@GLOBAL.GTID_PURGED='78336cdc-8cfb-11e6-ba9f-000c29328504:1-38';--将备份文件copy到从服务器
# scp /tmp/alldb.sql 192.168.1.247:/tmp
--执行reset master，重置从服务器上的binlog
Slave> reset master;
Query OK, 0 rows affected (0.03 sec)
Slave> source /tmp/alldb.sql
Slave> show databases; --此时tempdb已产生
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sakila |
| sys |
| tempdb |
+--------------------+
--执行change master
Slave> CHANGE MASTER TO
-> MASTER_HOST='192.168.1.245',
-> MASTER_USER='repl',
-> MASTER_PASSWORD='123456',
-> MASTER_PORT=3306,
-> MASTER_AUTO_POSITION = 1;
Query OK, 0 rows affected, 2 warnings (0.06 sec)
Slave> start slave;
Query OK, 0 rows affected (0.00 sec)
Slave> show slave status \G
***************************1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.245
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: node3-binlog.000001
Read_Master_Log_Pos: 25637
Relay_Log_File: node5-relay-bin.000002
Relay_Log_Pos: 423
Relay_Master_Log_File: node3-binlog.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
--主库端执行一些事务
Master> alter table tempdb.t1 modify ename varchar(50);
Query OK, 0 rows affected (0.05 sec)
Records: 0 Duplicates: 0 Warnings: 0
Master> insert into tempdb.t1 values(2,'http://blog.csdn.net/leshami');
Query OK, 1 row affected (0.02 sec)
--从库端验证结果
Slave> desc tempdb.t1;
+-------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+-------+
| id | int(11) | YES | | NULL | |
| ename | varchar(50) | YES | | NULL | |
+-------+-------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
Slave> select * from tempdb.t1;
+------+------------------------------+
| id | ename |
+------+------------------------------+
| 1 | leshami |
| 2 | http://www.linuxidc.com |
+------+------------------------------+