[sql] mysql> stop slave;
Query OK, 0 rows affected (0.10 sec) [sql] -- 重新设置复制参数 mysql> change master to master_host='
10.24.54.18'
,master_port=3306,master_user='
replication'
,master_password='
xxxxxx'
;
Query OK, 0 rows affected, 0 warnings (0.40 sec) mysql> start slave;
Query OK, 0 rows affected (0.01 sec) mysql> show slave statusG;
*************************** 1. row *************************** Slave_IO_State: Connecting to master Master_Host: 10.24.54.18 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 1355028 Relay_Log_File: mysql-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Connecting 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: 1355028 Relay_Log_Space: 107 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: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 1045 Last_IO_Error: error connecting to master '
replication@10.24.54.18:3306'
- retry-time: 60 retries: 86400 Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 2 1 row in set (0.00 sec)
<pre name="code" class="sql">-- 报错如下： Last_IO_Errno: 1045</pre>ERROR: No query specified 看问题，一开始怀疑是密码问题，但是密码都是复制上来的，没有变动，问题不大，还是看看check下别的情况吧。 2 ，check问题所在，ping ip地址，是OK的。
[python] [xxx@xxx-c004db1 shared]$ ping 10.24.54.18 PING 10.24.54.18 (10.24.54.18) 56(84) bytes of data. 64 bytes from 10.24.54.18: icmp_seq=1 ttl=64 time=0.321 ms 64 bytes from 10.24.54.18: icmp_seq=2 ttl=64 time=0.370 ms ^C --- 10.24.54.18 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1417ms rtt min/avg/max/mdev = 0.321/0.345/0.370/0.030 ms [xxx@xxx-c004db1 shared]$
3 ，access 数据库端口3306，也是OK的。
[python] [xxx@xxx-c004db1 shared]$ ssh -v -p3306 10.24.54.18 OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 10.24.54.18 [10.24.54.18] port 3306. debug1: Connection established. debug1: identity file /home/xxx/.ssh/xxx type -1 debug1: identity file /home/xxx/.ssh/id_rsa type -1 debug1: identity file /home/xxx/.ssh/id_dsa type -1 debug1: ssh_exchange_identification: O ^C
4，关闭防火墙service iptables stop，然后重启slave，还是报 Last_IO_Errno: 1045错误。 5，远程访问主库mysql 服务，报错如下：
[python] [xxx@xxx-c004db1 shared]$ mysql -h 10.24.54.18 -ureplication -pxxx ERROR 1045 (28000): Access denied for user '
replication'
@'
xxx-xxx.abn-sjl.ea.com'
(using password: YES) [xxx@xxx-c004db1 shared]$
仔细检查帐户，发现原来是执行grant语句的时候，密码串里面多了一个空格导致，同事的文本编辑器里面空格显示不明显，所以没有发现。 6，修复：去掉空格，重新执行grant语句，再重新启动slave，OK。
[sql] mysql> show slave statusG *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.24.54.18 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000660 Read_Master_Log_Pos: 34886442 Relay_Log_File: mysql-relay-bin.001320 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-bin.000660 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: 34886442 Relay_Log_Space: 452 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: 2 1 row in set (0.00 sec)
总结：DBA最重要的一点：细心，与大家共勉
