今天新加入一台从库，进行同步master数据，但是my.cnf配置文件直接拷贝，没修改server-id，导致报错：
2017-04-01 14:57:16 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:16 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355680160
2017-04-01 14:57:16 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:16 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355687180
2017-04-01 14:57:17 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:17 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355701274
2017-04-01 14:57:18 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:18 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355723904
2017-04-01 14:57:18 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:18 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355734536
2017-04-01 14:57:19 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:19 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355736849
2017-04-01 14:57:19 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:19 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355740978
2017-04-01 14:57:20 140661325472512 [Note] Slave: received end packet from server, apparent master shutdown:
2017-04-01 14:57:20 140661325472512 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000037' at position 355740978查看主从同步状态
>show slave status\G;
Relay_Master_Log_File: mysql-bin.000037
Slave_IO_Running: Preparing
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: 354949769
Relay_Log_Space: 30906
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遇到该报错信息：
查找master和slave主从上的server-id设置是否相同
查找slave1和slave2从和从之间的server-id设置是否相同了，也会导致该问题
每台master和slave主从库的server-id都必须唯一，识别主从的库的唯一标识
