mysql使用gtid主从复制
环境：
master：192.168.56.201
slave：192.168.56.211
1、配置主从节点的服务配置文件
1.1、配置master节点：
[mysqld]
binlog-format=ROW
server_id =1
log_slave_updates=1
#binlog-do-db = brent
#binlog-ignore-db = mysql
#replicate_ignore_db=mysql
#replicate_do_table=brent.t1
#replicate_ignore_table=brent.t2
#######GTID#######
gtid-mode = on
enforce-gtid-consistency = true
master-info-repository=TABLE
relay-log-info-repository=TABLE
sync-master-info=1
slave-parallel-workers=2
binlog-checksum=CRC32
master-verify-checksum=1
slave-sql-verify-checksum=1
binlog-rows-query-log_events=1
report-port=3306
report-host=192.168.56.201
1.2、配置slave节点：
[mysqld]
binlog-format=ROW
#################REPLICATE###############
server_id =11
log_slave_updates=1
#binlog-do-db = brent
#binlog-ignore-db = mysql
#replicate_ignore_db=mysql
#replicate_do_table=brent.t1
#replicate_ignore_table=brent.t2
#######GTID#######
gtid-mode = on
enforce-gtid-consistency = true
master-info-repository=TABLE
master-info-repository=TABLE
relay-log-info-repository=TABLE
sync-master-info=1
slave-parallel-workers=2
binlog-checksum=CRC32
master-verify-checksum=1
slave-sql-verify-checksum=1
binlog-rows-query-log_events=1
report-port=3306
report-host=192.168.56.211
2、创建复制用户
在master端创建复制用户
mysql> GRANT REPLICATION SLAVE ON *.* TO rpl@'%‘ IDENTIFIED BY 'rpl';
3、为备节点提供初始数据集
锁定主表，备份主节点上的数据，将其还原至从节点；如果没有启用GTID，在备份时需要在master上使用show master status命令查看二进制日志文件名称及事件位置，以便后面启动slave节点时使用。
我这里使用的mysqldump命令：
mysqldump --lock-all-tables --all-databases >suq.sql
再将数据导入到slave节点
cat suq.sql |mysql
4、启动从节点的复制线程
如果启用了GTID功能，则使用如下命令：
mysql> CHANGE MASTER TO MASTER_HOST='master.magedu.com', MASTER_USER='rpl', MASTER_PASSWORD='rpl',
MASTER_AUTO_POSITION=1;
############################GTID管理###########################
1.gtid中将relay_log_info_repository=table、master_info_repository=table设置为table后，会将master.info和relay.info中的数据保存在mysql的表中，
分别为：
mysql.slave_master_info
mysql.slave_relay_info
mysql.slave_worker_info
2.gtid模式中报错，不能使用skip counter跳过事务，必须将事务ID设置为空值，具体如下：
使用show slave status查看当前状态：
Last_SQL_Error: Worker 1 failed executing transaction 'ca6ccc10-b5c5-11e5-aed5-08002775af00:911' at master log master-bin.000006, end_log_pos 280262; Could not execute Delete_rows event on table suq.t1; Can't find record in 't1', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log FIRST, end_log_pos 280262
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: ca6ccc10-b5c5-11e5-aed5-08002775af00
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 160108 15:27:58
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: ca6ccc10-b5c5-11e5-aed5-08002775af00:331-911
Executed_Gtid_Set: 22e602cb-b5c8-11e5-aee4-08002775af00:1-2,
ca6ccc10-b5c5-11e5-aed5-08002775af00:1-910
retrieved_gtid_set：表示接受到的事务
executed_gtid_set：表示已经完成的事务，
这里有多行表是曾经或者现在有多个主，分别对应其中的uuid和事务
其中1-910已经完成，911事务报错
这时跳过这条事务：
mysql> stop slave;
Query OK, 0 rows affected (0.00 sec)
mysql> set gtid_next='ca6ccc10-b5c5-11e5-aed5-08002775af00:911';
Query OK, 0 rows affected (0.00 sec)
mysql> begin;commit;
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql> set gtid_next="automatic";
Query OK, 0 rows affected (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
slave端已经正常：
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.201
Master_User: rpl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000006
Read_Master_Log_Pos: 280293
Relay_Log_File: relay-bin.000005
Relay_Log_Pos: 451
Relay_Master_Log_File: master-bin.000006
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: 280293
Relay_Log_Space: 1226
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: 1
Master_UUID: ca6ccc10-b5c5-11e5-aed5-08002775af00
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: ca6ccc10-b5c5-11e5-aed5-08002775af00:331-911
Executed_Gtid_Set: 22e602cb-b5c8-11e5-aee4-08002775af00:1-2,
ca6ccc10-b5c5-11e5-aed5-08002775af00:1-911
Auto_Position: 1
3.gtid模式改为传统模式
首先在my.cnf中注释掉gtid-mode=ON和enforce-gtid-consistency=ON并且重启mysql
然后使用语句change master to master_auto_potision=0;
最后使用：
slave> CHANGE MASTER TO MASTER_HOST='192.168.56.201',
-> MASTER_USER='rpl',
-> MASTER_PASSWORD='rpl',
-> MASTER_LOG_FILE='master-bin.000003',
-> MASTER_LOG_POS=1174;