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mysql5.6升级到5.7.13后开启多源复制遇到重复的channel name该怎么办

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这篇文章将为大家详细讲解有关mysql5.6升级到5.7.13后开启多源复制遇到重复的channel name该怎么办，文章内容质量较高，因此小编分享给大家做个参考，希望大家阅读完这篇文章后对相关知识有一定的了解。

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  1. 一共三个数据库，原版本均为5.6，升级到5.7.13后开启多源复制，做成两主一从，发现channel name同名。

  2. 在从库执行reset slave all后，从库自动重启。

  3. 5.6 —> 5.7.13:

  4. 5.6：

  5. 1 cd /usr/local/mysql ; scripts/mysql_install_db –user=mysql –defaults-file=/57data/my56.cnf

  6. 2 /usr/local/mysql/bin/mysqld_safe –defaults-file=/57data/my56.cnf &

  7. 3 mysqladmin -S /tmp/mysql3307.sock -u root -P3307 -p password

  8. 4 mysql -uroot -S /tmp/mysql3307.sock -pmysql

  9. 5 set global innodb_fast_shutdown=0;

  10. 6 mysqladmin -S /tmp/mysql3307.sock  shutdown

  12. 5.7：

  13. 7 cd /usr/local/mysql57 ; ./bin/mysqld_safe –defaults-file=/57data/my.cnf &

  14. 8 cd /usr/local/mysql57 ; ./bin/mysql_upgrade -S /tmp/mysql3307.sock

  15. 9 cd /usr/local/mysql57 ; ./bin/mysqladmin -S /tmp/mysql3307.sock shutdown

  16. 10 cd /usr/local/mysql57 ; ./bin/mysqld_safe –defaults-file=/57data/my.cnf &

  17. 11 /usr/local/mysql57/bin/mysql -S /tmp/mysql3307.sock

  18. 12 grant replication slave,replication client on *.* to repl@'%' identified by 'passw0rd';

  19. 13

  20. mysql> SET GLOBAL master_info_repository = 'TABLE';

  21. Query OK, 0 rows affected (0.00 sec)

  23. mysql> SET GLOBAL relay_log_info_repository = 'TABLE';

  24. Query OK, 0 rows affected (0.00 sec)

  26. mysql>

  27. mysql> change master to master_host='vm2',

  28.     -> master_user='repl',

  29.     -> MASTER_PORT=3307,

  30.     -> master_password='passw0rd',

  31.     -> master_auto_position=1 FOR CHANNEL 'master_vm2';

  33. change master to master_host='vm3',

  34. master_user='repl',

  35. MASTER_PORT=3307,

  36. master_password='passw0rd',

  37. Query OK, 0 rows affected, 2 warnings (0.08 sec)

  39. mysql>

  40. mysql> change master to master_host='vm3',

  41.     -> master_user='repl',

  42.     -> MASTER_PORT=3307,

  43.     -> master_password='passw0rd',

  44.     -> master_auto_position=1 FOR CHANNEL 'master_vm3';

  45. Query OK, 0 rows affected, 2 warnings (0.04 sec)

  47. mysql>

  48. mysql>

  49. mysql> show slave status/G;

  50. *************************** 1. row ***************************

  51.                Slave_IO_State:

  52.                   Master_Host: vm2

  53.                   Master_User: repl

  54.                   Master_Port: 3307

  55.                 Connect_Retry: 60

  56.               Master_Log_File:

  57.           Read_Master_Log_Pos: 4

  58.                Relay_Log_File: vm4-relay-bin-master_vm2.000001

  59.                 Relay_Log_Pos: 4

  60.         Relay_Master_Log_File:

  61.              Slave_IO_Running: No

  62.             Slave_SQL_Running: No

  63.               Replicate_Do_DB:

  64.           Replicate_Ignore_DB:

  65.            Replicate_Do_Table:

  66.        Replicate_Ignore_Table:

  67.       Replicate_Wild_Do_Table:

  68.   Replicate_Wild_Ignore_Table:

  69.                    Last_Errno: 0

  70.                    Last_Error:

  71.                  Skip_Counter: 0

  72.           Exec_Master_Log_Pos: 0

  73.               Relay_Log_Space: 154

  74.               Until_Condition: None

  75.                Until_Log_File:

  76.                 Until_Log_Pos: 0

  77.            Master_SSL_Allowed: No

  78.            Master_SSL_CA_File:

  79.            Master_SSL_CA_Path:

  80.               Master_SSL_Cert:

  81.             Master_SSL_Cipher:

  82.                Master_SSL_Key:

  83.         Seconds_Behind_Master: NULL

  84. Master_SSL_Verify_Server_Cert: No

  85.                 Last_IO_Errno: 0

  86.                 Last_IO_Error:

  87.                Last_SQL_Errno: 0

  88.                Last_SQL_Error:

  89.   Replicate_Ignore_Server_Ids:

  90.              Master_Server_Id: 0

  91.                   Master_UUID:

  92.              Master_Info_File: mysql.slave_master_info

  93.                     SQL_Delay: 0

  94.           SQL_Remaining_Delay: NULL

  95.       Slave_SQL_Running_State:

  96.            Master_Retry_Count: 86400

  97.                   Master_Bind:

  98.       Last_IO_Error_Timestamp:

  99.      Last_SQL_Error_Timestamp:

  100.                Master_SSL_Crl:

  101.            Master_SSL_Crlpath:

  102.            Retrieved_Gtid_Set:

  103.             Executed_Gtid_Set: 45ee9543-2d51-11e6-ba5d-0800276e6667:1-2,

  104. 4acf2a8c-2d51-11e6-ba5d-080027806975:1-2,

  105. 4c01fc54-2d51-11e6-ba5d-08002781f86e:1-6

  106.                 Auto_Position: 1

  107.          Replicate_Rewrite_DB:

  108.                  Channel_Name: master_vm2

  109.            Master_TLS_Version:

  110. *************************** 2. row ***************************

  111.                Slave_IO_State:

  112.                   Master_Host: vm3

  113.                   Master_User: repl

  114.                   Master_Port: 3307

  115.                 Connect_Retry: 60

  116.               Master_Log_File:

  117.           Read_Master_Log_Pos: 4

  118.                Relay_Log_File: vm4-relay-bin-master_vm3.000001

  119.                 Relay_Log_Pos: 4

  120.         Relay_Master_Log_File:

  121.              Slave_IO_Running: No

  122.             Slave_SQL_Running: No

  123.               Replicate_Do_DB:

  124.           Replicate_Ignore_DB:

  125.            Replicate_Do_Table:

  126.        Replicate_Ignore_Table:

  127.       Replicate_Wild_Do_Table:

  128.   Replicate_Wild_Ignore_Table:

  129.                    Last_Errno: 0

  130.                    Last_Error:

  131.                  Skip_Counter: 0

  132.           Exec_Master_Log_Pos: 0

  133.               Relay_Log_Space: 154

  134.               Until_Condition: None

  135.                Until_Log_File:

  136.                 Until_Log_Pos: 0

  137.            Master_SSL_Allowed: No

  138.            Master_SSL_CA_File:

  139.            Master_SSL_CA_Path:

  140.               Master_SSL_Cert:

  141.             Master_SSL_Cipher:

  142.                Master_SSL_Key:

  143.         Seconds_Behind_Master: NULL

  144. Master_SSL_Verify_Server_Cert: No

  145.                 Last_IO_Errno: 0

  146.                 Last_IO_Error:

  147.                Last_SQL_Errno: 0

  148.                Last_SQL_Error:

  149.   Replicate_Ignore_Server_Ids:

  150.              Master_Server_Id: 0

  151.                   Master_UUID:

  152.              Master_Info_File: mysql.slave_master_info

  153.                     SQL_Delay: 0

  154.           SQL_Remaining_Delay: NULL

  155.       Slave_SQL_Running_State:

  156.            Master_Retry_Count: 86400

  157.                   Master_Bind:

  158.       Last_IO_Error_Timestamp:

  159.      Last_SQL_Error_Timestamp:

  160.                Master_SSL_Crl:

  161.            Master_SSL_Crlpath:

  162.            Retrieved_Gtid_Set:

  163.             Executed_Gtid_Set: 45ee9543-2d51-11e6-ba5d-0800276e6667:1-2,

  164. 4acf2a8c-2d51-11e6-ba5d-080027806975:1-2,

  165. 4c01fc54-2d51-11e6-ba5d-08002781f86e:1-6

  166.                 Auto_Position: 1

  167.          Replicate_Rewrite_DB:

  168.                  Channel_Name: master_vm2

  169.            Master_TLS_Version:

  170. 2 rows in set (0.00 sec)

  172. ERROR:

  173. No query specified

  175. mysql>

  177. mysql> select CHANNEL_NAME FROM performance_schema.replication_connection_status;

  178. +————–+

  179. | CHANNEL_NAME |

  180. +————–+

  181. | master_vm2 |

  182. | master_vm2 |

  183. +————–+

  184. 2 rows in set (0.01 sec)

  187. mysql> select CHANNEL_NAME FROM performance_schema.replication_connection_status;

  188. +————–+

  189. | CHANNEL_NAME |

  190. +————–+

  191. | master_vm2 |

  192. | master_vm2 |

  193. +————–+

  194. 2 rows in set (0.01 sec)

  196. mysql> start slave;

  197. Query OK, 0 rows affected (0.04 sec)

  199. 在两主库分别建数据库vm2和vm3,系统正常复制到从库。

  200. mysql> show databases;

  201. +——————–+

  202. | Database |

  203. +——————–+

  204. | information_schema |

  205. | mysql |

  206. | performance_schema |

  207. | sys |

  208. | test |

  209. | vm2 |

  210. | vm3 |

  211. +——————–+

  212. 7 rows in set (0.00 sec)

  214. 在从库执行reset slave all，从库自动重启。

  215. mysql> reset slave all;

  216. ERROR 2013 (HY000): Lost connection to MySQL server during query

  217. mysql> 2016-06-08T08:56:18.890685Z mysqld_safe Number of processes running now: 0

  218. 2016-06-08T08:56:18.906614Z mysqld_safe mysqld restarted

  220. mysql>

  221. mysql> reset slave all;

  222. ERROR 2006 (HY000): MySQL server has gone away

  223. No connection. Trying to reconnect…

  224. Connection id: 2

  225. Current database: *** NONE ***

  227. Query OK, 0 rows affected (0.09 sec)

  229. mysql> show slave status/G;

  230. Empty set (0.01 sec)

  232. ERROR:

  233. No query specified

  236. err log里channel name信息显示正确，但出现Thread pointer相关信息，如下：

  237. 2016-06-08T08:55:54.540373Z 4 [Note] Error reading relay log event for channel 'master_vm2': slave SQL thread was killed

  238. 2016-06-08T08:55:54.550729Z 3 [Note] Slave I/O thread killed while reading event for channel 'master_vm2'

  239. 2016-06-08T08:55:54.550814Z 3 [Note] Slave I/O thread exiting for channel 'master_vm2', read up to log 'mysql_bin.000005', position 653

  240. 2016-06-08T08:55:54.556301Z 6 [Note] Error reading relay log event for channel 'master_vm3': slave SQL thread was killed

  241. 2016-06-08T08:55:54.563404Z 5 [Note] Slave I/O thread killed while reading event for channel 'master_vm3'

  242. 2016-06-08T08:55:54.563549Z 5 [Note] Slave I/O thread exiting for channel 'master_vm3', read up to log 'mysql_bin.000005', position 653

  243. 08:56:18 UTC – mysqld got signal 11 ;

  244. This could be because you hit a bug. It is also possible that this binary

  245. or one of the libraries it was linked against is corrupt, improperly built,

  246. or misconfigured. This error can also be caused by malfunctioning hardware.

  247. Attempting to collect some information that could help diagnose the problem.

  248. As this is a crash and something is definitely wrong, the information

  249. collection process might fail.

  251. key_buffer_size=8388608

  252. read_buffer_size=131072

  253. max_used_connections=1

  254. max_threads=151

  255. thread_count=1

  256. connection_count=1

  257. It is possible that mysqld could use up to

  258. key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68189 K  bytes of memory

  259. Hope that's ok; if not, decrease some variables in the equation.

    Thread pointer: 0x7f9550000b10
    Attempting backtrace. You can use the following information to find out
    where mysqld died. If you see no messages after this, something went
    terribly wrong…
    stack_bottom = 7f9583175e28 thread_stack 0x40000
    /usr/local/mysql57/bin/mysqld(my_print_stacktrace+0x35)[0xf25c45]
    /usr/local/mysql57/bin/mysqld(handle_fatal_signal+0x4a4)[0x7b8604]
    /lib64/libpthread.so.0[0x37f160f7e0]
    /usr/local/mysql57/bin/mysqld(_ZN16Multisource_info9delete_miEPKc+0x2df)[0xf082ff]
    /usr/local/mysql57/bin/mysqld(_Z11reset_slaveP3THDP11Master_infob+0x1c5)[0xef1e05]
    /usr/local/mysql57/bin/mysqld(_Z11reset_slaveP3THD+0x2e2)[0xef21b2]
    /usr/local/mysql57/bin/mysqld(_Z15reset_slave_cmdP3THD+0x98)[0xef2388]
    /usr/local/mysql57/bin/mysqld(_Z20reload_acl_and_cacheP3THDmP10TABLE_LISTPi+0x30c)[0xd2ae3c]
    /usr/local/mysql57/bin/mysqld(_Z21mysql_execute_commandP3THDb+0x83a)[0xcfaf2a]
    /usr/local/mysql57/bin/mysqld(_Z11mysql_parseP3THDP12Parser_state+0x3cd)[0xcff97d]
    /usr/local/mysql57/bin/mysqld(_Z16dispatch_commandP3THDPK8COM_DATA19enum_server_command+0x1099)[0xd00a79]
    /usr/local/mysql57/bin/mysqld(_Z10do_commandP3THD+0x194)[0xd016e4]
    /usr/local/mysql57/bin/mysqld(handle_connection+0x2a4)[0xdce6e4]
    /usr/local/mysql57/bin/mysqld(pfs_spawn_thread+0x171)[0x121b951]
    /lib64/libpthread.so.0[0x37f1607aa1]
    /lib64/libc.so.6(clone+0x6d)[0x37f0ee893d]

    Trying to get some variables.
    Some pointers may be invalid and cause the dump to abort.
    Query (7f95500054f0): is an invalid pointer
    Connection ID (thread ID): 2
    Status: NOT_KILLED

    The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
    information that should help you find out what is causing the crash.
    2016-06-08T08:56:18.890685Z mysqld_safe Number of processes running now: 0
    2016-06-08T08:56:18.906614Z mysqld_safe mysqld restarted

关于mysql5.6升级到5.7.13后开启多源复制遇到重复的channel name该怎么办就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。

原创文章，作者：carmelaweatherly，如若转载，请注明出处：https://blog.ytso.com/201828.html

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