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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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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。
在从库执行 reset slave all 后，从库自动重启。
5.6 — 5.7.13:
5.6：
1 cd /usr/local/mysql ; scripts/mysql_install_db –user=mysql –defaults-file=/57data/my56.cnf
2 /usr/local/mysql/bin/mysqld_safe –defaults-file=/57data/my56.cnf
3 mysqladmin -S /tmp/mysql3307.sock -u root -P3307 -p password
4 mysql -uroot -S /tmp/mysql3307.sock -pmysql
5 set global innodb_fast_shutdown=0;
6 mysqladmin -S /tmp/mysql3307.sock shutdown
5.7：
7 cd /usr/local/mysql57 ; ./bin/mysqld_safe –defaults-file=/57data/my.cnf
8 cd /usr/local/mysql57 ; ./bin/mysql_upgrade -S /tmp/mysql3307.sock
9 cd /usr/local/mysql57 ; ./bin/mysqladmin -S /tmp/mysql3307.sock shutdown
10 cd /usr/local/mysql57 ; ./bin/mysqld_safe –defaults-file=/57data/my.cnf
11 /usr/local/mysql57/bin/mysql -S /tmp/mysql3307.sock
12 grant replication slave,replication client on *.* to repl@ % identified by passw0rd
13
mysql SET GLOBAL master_info_repository = TABLE
Query OK, 0 rows affected (0.00 sec)
mysql SET GLOBAL relay_log_info_repository = TABLE
Query OK, 0 rows affected (0.00 sec)
mysql
mysql change master to master_host= vm2 ,
– master_user= repl ,
– MASTER_PORT=3307,
– master_password= passw0rd ,
– master_auto_position=1 FOR CHANNEL master_vm2
change master to master_host= vm3 ,
master_user= repl ,
MASTER_PORT=3307,
master_password= passw0rd ,
Query OK, 0 rows affected, 2 warnings (0.08 sec)
mysql
mysql change master to master_host= vm3 ,
– master_user= repl ,
– MASTER_PORT=3307,
– master_password= passw0rd ,
– master_auto_position=1 FOR CHANNEL master_vm3
Query OK, 0 rows affected, 2 warnings (0.04 sec)
mysql
mysql
mysql show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: vm2
Master_User: repl
Master_Port: 3307
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: vm4-relay-bin-master_vm2.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
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: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 154
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: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
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: 45ee9543-2d51-11e6-ba5d-0800276e6667:1-2,
4acf2a8c-2d51-11e6-ba5d-080027806975:1-2,
4c01fc54-2d51-11e6-ba5d-08002781f86e:1-6
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name: master_vm2
Master_TLS_Version:
*************************** 2. row ***************************
Slave_IO_State:
Master_Host: vm3
Master_User: repl
Master_Port: 3307
Connect_Retry: 60
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: vm4-relay-bin-master_vm3.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
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: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 154
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: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 0
Master_UUID:
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
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: 45ee9543-2d51-11e6-ba5d-0800276e6667:1-2,
4acf2a8c-2d51-11e6-ba5d-080027806975:1-2,
4c01fc54-2d51-11e6-ba5d-08002781f86e:1-6
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name: master_vm2
Master_TLS_Version:
2 rows in set (0.00 sec)
ERROR:
No query specified
mysql
mysql select CHANNEL_NAME FROM performance_schema.replication_connection_status;
+————–+
| CHANNEL_NAME |
+————–+
| master_vm2 |
| master_vm2 |
+————–+
2 rows in set (0.01 sec)
mysql select CHANNEL_NAME FROM performance_schema.replication_connection_status;
+————–+
| CHANNEL_NAME |
+————–+
| master_vm2 |
| master_vm2 |
+————–+
2 rows in set (0.01 sec)
mysql start slave;
Query OK, 0 rows affected (0.04 sec)
在两主库分别建数据库 vm2 和 vm3, 系统正常复制到从库。
mysql show databases;
+——————–+
| Database |
+——————–+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
| vm2 |
| vm3 |
+——————–+
7 rows in set (0.00 sec)
在从库执行 reset slave all，从库自动重启。
mysql reset slave all;
ERROR 2013 (HY000): Lost connection to MySQL server during query
mysql 2016-06-08T08:56:18.890685Z mysqld_safe Number of processes running now: 0
2016-06-08T08:56:18.906614Z mysqld_safe mysqld restarted
mysql
mysql reset slave all;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect…
Connection id: 2
Current database: *** NONE ***
Query OK, 0 rows affected (0.09 sec)
mysql show slave status\G;
Empty set (0.01 sec)
ERROR:
No query specified
err log 里 channel name 信息显示正确，但出现 Thread pointer 相关信息，如下：
2016-06-08T08:55:54.540373Z 4 [Note] Error reading relay log event for channel master_vm2 : slave SQL thread was killed
2016-06-08T08:55:54.550729Z 3 [Note] Slave I/O thread killed while reading event for channel master_vm2
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
2016-06-08T08:55:54.556301Z 6 [Note] Error reading relay log event for channel master_vm3 : slave SQL thread was killed
2016-06-08T08:55:54.563404Z 5 [Note] Slave I/O thread killed while reading event for channel master_vm3
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
08:56:18 UTC – mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
Attempting to collect some information that could help diagnose the problem.
As this is a crash and something is definitely wrong, the information
collection process might fail.
key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=1
max_threads=151
thread_count=1
connection_count=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68189 K bytes of memory
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。
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