我有一个带有bin日志文件bin.000008的主MySQL服务器A.还有一个从服务器B及其bin日志文件bin.000012。
从A到B的复制效果很好。
每次我将数据更改为服务器A时，服务器B都会正确复制它。
有一个新的MySQL服务器C.我将它作为服务器B的从属服务器。
问题是：
当我修改服务器A上的数据时，服务器B正确复制它。但是服务器C不会被更改。这意味着从服务器B到服务器C的复制无效。
我尝试重新启动服务器C上的从服务器。当从二进制日志中读取数据时，它显示 从主服务器获得致命错误1236：＆＃39;服务器正在使用CHANGE MASTER连接到MASTER_AUTO_POSITION = 1 ，但主人已清除包含奴隶所需的GTID的二进制日志。＆＃39;
以下是每个服务器的主从状态：
服务器C（服务器B的从属服务器）：
db> show slave status\G;
|[
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: luexu.com
Master_User: Aario
Master_Port: 1579
Connect_Retry: 60
Master_Log_File: bin.000012
Read_Master_Log_Pos: 194
Relay_Log_File: cf3613332a61-relay-bin.000004
Relay_Log_Pos: 355
Relay_Master_Log_File: bin.000012
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql,information_schema,performance_schema,sys
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: 194
Relay_Log_Space: 569
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: 65535
Master_UUID: dd7aa123-ca18-11e7-9411-0242ac110005
Master_Info_File: /master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: c389aee6-ca16-11e7-81e3-0242ac110004:1-79,
dd7aa123-ca18-11e7-9411-0242ac110005:1-13
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
]|
服务器B（服务器A的从属服务器，服务器C的主服务器）：
db> show variables like '%slave%';
+------------------------------+-----------------------+
| Variable_name | Value |
+------------------------------+-----------------------+
| init_slave | |
| log_slave_updates | ON |
| log_slow_slave_statements | OFF |
| pseudo_slave_mode | OFF |
| rpl_stop_slave_timeout | 31536000 |
| slave_allow_batching | OFF |
| slave_checkpoint_group | 512 |
| slave_checkpoint_period | 300 |
| slave_compressed_protocol | OFF |
| slave_exec_mode | STRICT |
| slave_load_tmpdir | /tmp |
| slave_max_allowed_packet | 1073741824 |
| slave_net_timeout | 60 |
| slave_parallel_type | DATABASE |
| slave_parallel_workers | 0 |
| slave_pending_jobs_size_max | 16777216 |
| slave_preserve_commit_order | OFF |
| slave_rows_search_algorithms | TABLE_SCAN,INDEX_SCAN |
| slave_skip_errors | OFF |
| slave_sql_verify_checksum | ON |
| slave_transaction_retries | 10 |
| slave_type_conversions | |
| sql_slave_skip_counter | 0 |
+------------------------------+-----------------------+
db> show master status\G;
|[
*************************** 1. row ***************************
File: bin.000012
Position: 194
Binlog_Do_DB:
Binlog_Ignore_DB: mysql,sys,information_schema,performance_schema
Executed_Gtid_Set: c389aee6-ca16-11e7-81e3-0242ac110004:1-81,
dd7aa123-ca18-11e7-9411-0242ac110005:1-13
1 row in set (0.00 sec)
]|
db> show slave status\G;
|[
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: luexu.com
Master_User: Aario
Master_Port: 5961
Connect_Retry: 60
Master_Log_File: bin.000008
Read_Master_Log_Pos: 27885
Relay_Log_File: 217fcc5843c2-relay-bin.000005
Relay_Log_Pos: 27684
Relay_Master_Log_File: bin.000008
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql,sys,information_schema,performance_schema
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: 27885
Relay_Log_Space: 27938
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: 1
Master_UUID: c389aee6-ca16-11e7-81e3-0242ac110004
Master_Info_File: /master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: c389aee6-ca16-11e7-81e3-0242ac110004:48-81
Executed_Gtid_Set: c389aee6-ca16-11e7-81e3-0242ac110004:1-81,
dd7aa123-ca18-11e7-9411-0242ac110005:1-13
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
]|
服务器A（服务器B的主服务器）：
db> show master status\G;
|[
*************************** 1. row ***************************
File: bin.000008
Position: 27885
Binlog_Do_DB:
Binlog_Ignore_DB: mysql,sys,information_schema,performance_schema
Executed_Gtid_Set: c389aee6-ca16-11e7-81e3-0242ac110004:1-81
1 row in set (0.00 sec)
]|
在服务器C上重启奴隶：
db> stop slave;
db> start slave;
db> show slave status\G;
|[
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: luexu.com
Master_User: Aario
Master_Port: 3306
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: cf3613332a61-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql,information_schema,performance_schema,sys
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: 0
Relay_Log_Space: 308
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: 1236
Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.'
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 65535
Master_UUID: dd7aa123-ca18-11e7-9411-0242ac110005
Master_Info_File: /master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp: 171210 04:01:51
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 074c1f93-dd08-11e7-b173-0242ac110004:1-3
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
]|
答案 0 :(得分：0)
我不确定你的问题因此只是一些想法 - 也许你会在其中找到一些灵感：
设置链复制A-> B-> C？如果不能避免这种复杂性，只需制作A的C副本（你可以通过简单克隆已经工作的B副本来实现它 - 见这里：http://mysql.freeideas.cz/subdom/mysql/2017/08/14/create-new-replica-by-copying-data-and-log-files-on-os-level/
如果你真的必须链接你的复制，那么它通常工作正常，我们用它来进行更大的架构更改，而不需要长时间停机，甚至可以在不同的MySQL版本之间工作。
当我们需要从一个云提供商转移到另一个云提供商时，我们第一次使用它 - 我们在旧云上使用了（A）旧主人 - ＆gt; （B）新云上新的预期主人 - ＆gt; （C）应用程序的新云副本。目前我们将其设置为使用新版MySQL的新应用程序开发 - （A）旧5.5 Master - ＆gt; （B）5.7 replica / master - ＆gt; （C）应用程序的5.7个副本。
你只需要设置＆＃34; log_slave_updates = ON＆＃34; on＆＃34; master replica＆＃34;并且从B创建B副本的方式与从A创建B的方式相同 - 请参阅此处的一般注释：http://mysql.freeideas.cz/subdom/mysql/2016/11/10/how-to-manually-set-mysql-replication/
含义 - 您必须在B上为C进行转储，并且复制已停止并且表针对更改锁定并记录B的主状态并使用它来设置C.当然 - 您必须确保B上的bin日志将存在＆ ＃34;足够长＆＃34; - 设置＆＃34; expire_logs_days＆＃34;在B到几天（当然你必须有足够的磁盘空间）。设置中的所有这些更改都需要重新启动。