mysql slave不能同步Error 'Duplicate entry '1438019' for key 'PRIMARY'
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.10.100
Master_User: slave_user
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000773
Read_Master_Log_Pos: 63325
Relay_Log_File: server122-relay-bin.000002
Relay_Log_Pos: 165661
Relay_Master_Log_File: mysql-bin.000771
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1062
Last_Error: Error 'Duplicate entry '1438019' for key 'PRIMARY'' on query. Default database: 'otrs'. Query: 'INSERT INTO ticket (tn, title, create_time_unix, queue_id, ticket_lock_id, user_id, group_id, ticket_priority_id, ticket_state_id, ticket_answered, escalation_start_time, timeout, valid_id, create_time, create_by, change_time, change_by) VALUES ('2012061310001851', 'Your order ORD201205A000016 was bounced back', 1339585744, 44, 1, 43, 1, 3, 4, 0, 1339585744, 0, 1, current_timestamp, 43, current_timestamp, 43)'
Skip_Counter: 0
Exec_Master_Log_Pos: 41969067
Relay_Log_Space: 625695
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: 0
Last_IO_Error:
Last_SQL_Errno: 1062
Last_SQL_Error: Error 'Duplicate entry '1438019' for key 'PRIMARY'' on query. Default database: 'otrs'. Query: 'INSERT INTO ticket (tn, title, create_time_unix, queue_id, ticket_lock_id, user_id, group_id, ticket_priority_id, ticket_state_id, ticket_answered, escalation_start_time, timeout, valid_id, create_time, create_by, change_time, change_by) VALUES ('2012061310001851', 'Your order ORD201205A000016 was bounced back', 1339585744, 44, 1, 43, 1, 3, 4, 0, 1339585744, 0, 1, current_timestamp, 43, current_timestamp, 43)'
1 row in set (0.00 sec)
分析原因：重复插入相同的记录，造成的主键冲突问题
解决方法：
一、如果较少的错误可以手动解决
slave stop;
set global sql_slave_skip_counter=n; \\ n=正整数，，看你的错误有几条，就跳过几条
slave start;
二、较多的情况下增加slave_skip_errors = 1062 参数
my.cnf 中增加slave_skip_errors = 1062 参数，忽略1062错误，若忽略多个错误，中间用逗号隔开，忽略所有用all