mysql 主从复制1201错误

工作日志之-MySQL slave Replication Error

Description：

mysql> start slave;
ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log

[root@slave ~]# tail /var/log/mysqld.log
090105 11:53:52 [ERROR] Failed to open the relay log '/var/run/mysqld/mysqld-relay-bin.000013' (relay_log_pos 235)
090105 11:53:52 [ERROR] Could not find target log during relay log initialization
...

[root@slave mysql]# ls /var/run/mysqld/
mysqld-relay-bin.000001 mysqld-relay-bin.000003 mysqld-relay-bin.000005 mysqld-relay-bin.index
mysqld-relay-bin.000002 mysqld-relay-bin.000004 mysqld-relay-bin.000006
[root@slave mysql]# cat master.info
14
mysql-bin.000010
1235
192.168.3.21
slave
29019853
3307
60
0








[root@slave mysql]# cat relay-log.info
/var/run/mysqld/mysqld-relay-bin.000013
235
mysql-bin.000010
1235

3

50703

Resolve solution:

[root@slave ~]# service mysqld stop
[root@slave mysql]# rm -fr master.info
[root@slave mysql]# rm -fr relay-log.info
[root@slave ~]# grep skip-slave-start /etc/my.cnf
skip-slave-start
[root@slave ~]# service mysqld start
[root@master ~]# mysql -uroot -p
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000011 | 98 | | |
+------------------+----------+--------------+------------------+
[root@slave ~]# mysql -uroot -p

mysql> change master to
master_log_file='mysql-bin.000011',
master_log_pos=98,
master_host='192.168.3.21',
master_port=3307,
master_user='slave',
master_password='12345678';
Query OK, 0 rows affected (0.02 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.3.21
Master_User: slave
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: mysql-bin.000011
Read_Master_Log_Pos: 98
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 235
Relay_Master_Log_File: mysql-bin.000011
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: 98
Relay_Log_Space: 235
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
1 row in set (0.00 sec)