问题处理借鉴至网上的内容
重新做主从，完全同步
在主库新建一张表后，在slave 段发现数据没有同步过去。
mysql version：5.6.10
os ：rhel 5.6
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解决步骤如下：
1.主库进行锁表，防止数据写入
mysql> flush tables with read lock;
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解锁命令：
Mysql> unlock tables;
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2.进行数据备份 ，数据备份到mysql.sql文件
#mysqldump -uroot -pmysql --all-databases > mysql.sql
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3.查看master 状态
mysql> show master status; +------------------+----------+--------------+------------------+-------------------+ | File | Position |Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 335 |test | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec)
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4.把mysql备份文件传到从库机器，进行数据恢复
scp or ftp
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5.停止从库的状态
mysql> stop slave;
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6.从库导入数据备份
mysql> source /lixora/mysql.sql；
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7.设置从库同步，注意该处的同步点，就是主库show master status信息里的| File| Position两项
change master to master_host='10.80.18.241', -----主库IP地址 master_user='root', master_password='mysql', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos=335;
其中MASTER_HOST是master机的ip，
MASTER_USER和MASTER_PASSWORD是在master上添加的用户，用来复制操作的用户
MASTER_LOG_FILE和MASTER_LOG_POS对应与show master status里的信息
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8.重新开启从同步
mysql> start slave;
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9.查看同步状态
mysql> show slave status\G Slave_IO_Running: Yes Slave_SQL_Running: Yes
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同步测试：
【master】
mysql> use test; Database changed mysql> show tables; +----------------+ | Tables_in_test | +----------------+ | lixora | | max | | test | +----------------+ 3 rows in set (0.00 sec) mysql> create table lixora_2015_0317 as select * from mysql.user; Query OK, 5 rows affected (0.68 sec) Records: 5 Duplicates: 0 Warnings: 0 mysql> show tables; +------------------+ | Tables_in_test | +------------------+ | lixora | | lixora_2015_0317 | | max | | test | +------------------+ 4 rows in set (0.00 sec) mysql> select * from lixora_2015_0317; 。。。 5 rows in set (0.00 sec)
【slave】
mysql> use test Database changed mysql> show tables; +------------------+ | Tables_in_test | +------------------+ | lixora | | lixora_2015_0317 | | max | | test | +------------------+ 4 rows in set (0.00 sec) mysql> select count(*) from lixora_2015_0317; +----------+ | count(*) | +----------+ | 5 | +----------+ 1 row in set (0.06 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.80.18.241 Master_User: root Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 1166 Relay_Log_File: oracle11g-dag-relay-bin.000002 Relay_Log_Pos: 1114 Relay_Master_Log_File: mysql-bin.000003 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: 1166 Relay_Log_Space: 1295 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_