我目前正试图让一个MariaDB 10.2.9作为mysql 5.5主服务器的从属服务器运行,但我一直收到相同的错误(Last\u IO\u Errno:1595,中继日志写入失败:无法将来自主服务器的事件排队)
由于主版本和从版本之间存在一些差异,我必须设置
set global binlog_checksum='NONE';
总而言之,我取了一个mysqldump的主文件,读了log\u pos/文件,然后
SET GLOBAL server_id=2;
CHANGE MASTER TO
MASTER_HOST='10.145.46.11',MASTER_USER='replicant',MASTER_PASSWORD='...',
MASTER_LOG_FILE='mysql-bin.000042', MASTER_LOG_POS=107;
start slave;
...
2017-10-31 11:44:41 140026338711296 [Note] Slave SQL thread initialized, starting replication in log 'mysql-bin.000007' at position 107, relay log './mariadb-relay-bin.000001' position: 4
2017-10-31 11:44:41 140027007977216 [Note] Slave I/O thread: connected to master 'replicant@10.145.46.11:3306',replication started in log 'mysql-bin.000007' at position 107
2017-10-31 11:44:42 140027007977216 [Warning] Slave I/O: Notifying master by SET @master_binlog_checksum= @@global.binlog_checksum failed with error: Unknown system variable 'binlog_checksum', Internal MariaDB error code: 1193
2017-10-31 11:44:42 140027007977216 [ERROR] Slave I/O: Replication event checksum verification failed while reading from network, Internal MariaDB error code: 1743
2017-10-31 11:44:42 140027007977216 [ERROR] Slave I/O: Relay log write failure: could not queue event from master, Internal MariaDB error code: 1595
2017-10-31 11:44:42 140027007977216 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.000007', position 107
....
我也不确定什么样的校验和在这里失败(mysql参考称为“复制事件校验和”?),我试过:
set global slave_sql_verify_checksum=0;
MariaDB [(none)]> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.145.46.11
Master_User: replicant
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000007
Read_Master_Log_Pos: 107
Relay_Log_File: mariadb-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000007
Slave_IO_Running: No
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: 107
Relay_Log_Space: 256
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: 1595
Last_IO_Error: Relay log write failure: could not queue event from master
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_SSL_Crl:
Master_SSL_Crlpath:
Using_Gtid: No
Gtid_IO_Pos:
Replicate_Do_Domain_Ids:
Replicate_Ignore_Domain_Ids:
Parallel_Mode: conservative
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
