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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

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;

解锁命令：

Mysql> unlock tables;

2.进行数据备份，数据备份到mysql.sql文件

#mysqldump -uroot -pmysql –all-databases > mysql.sql

3.查看master 状态

mysql> show master status;

+——————+———-+————–+——————+——————-+

+——————+———-+————–+——————+——————-+

+——————+———-+————–+——————+——————-+

1 row in set (0.00 sec)

4.把mysql备份文件传到从库机器，进行数据恢复

scp or ftp

5.停止从库的状态

mysql> stop slave;

6.从库导入数据备份

mysql> source /lixora/mysql.sql；

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 tomaster_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

8.重新开启从同步

mysql> start slave;

9.查看同步状态

mysql> show slave status\G

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

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 testDatabase changedmysql> 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_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0Master_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: 888a8d9e-cbb3-11e4-b87e-000c29d57584 Master_Info_File: /var/lib/mysql/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: Executed_Gtid_Set: Auto_Position: 01 row in set (0.00 sec)

其实你已经错过了旅行的意义。

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