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: 401
Relay_Log_Space: 120
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: 2003
Last_IO_Error: error connecting to master 'repl@192.168.18.66:3306' - retry-time: 60 retries: 1
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
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: 140825 14:29:05
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
问题1
2
查看日志有如下内容
[root@host2 ~]# tail -n 30 /var/lib/mysql/host2.err
2014-08-27 17:04:37 2384 [ERROR] Slave I/O: error connecting to master 'repl@192.168.18.66:3306' - retry-time: 60 retries: 1, Error_code: 2003
2014-08-27 17:04:37 2384 [Warning] Slave SQL: If a crash happens this configuration does not guarantee that the relay log info will be consistent, Error_code: 0
2014-08-27 17:05:12 2384 [Note] Error reading relay log event: slave SQL thread was killed
2014-08-27 17:05:12 2384 [Note] Slave I/O thread killed while connecting to master
2014-08-27 17:05:12 2384 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.000003', position 120
问题1
3
在主上新建一个全权用户，在从上用这个用户做复制，结果一致
主：
mysql> grant all on *.* to 'usrep'@'%' identified by '123456';
从
mysql> Change master to Master_host = '192.168.18.66', Master_port = 3306, Master_user = 'repl', Master_password = '123456', Master_log_file = 'mysql-bin.000002', Master_log_pos = 401;
用usrep在从上起slave复制线程，问题依旧
问题1
4
在主上mysql -uusrep -p直接登录主数据库，成功。
在从上mysql -h 192.168.18.67 -uusrep -p登录主数据库，失败。
[root@host2 ~]# mysql -h 192.168.18.67 -uroot -psystem
Warning: Using a password on the command line interface can be insecure.
ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.18.66' (113)
问题1
5
查看主的iptable
[root@host3 ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
问题1
6
打开文件 /etc/sysconfig/iptables（该文件路径因操作 系统而异），文件内容如下：
[root@host3 ~]# nl /etc/sysconfig/iptables
1 # Firewall configuration written by system-config-firewall
2 # Manual customization of this file is not recommended.
3 *filter
4 :INPUT ACCEPT [