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natli
Asked: 2012-11-13 16:44:12 +0800 CST

MySQL 复制不工作 - 没有错误

  • 772

我按照这本书设置了主从。我在LOAD DATA FROM MASTER;奴隶上运行了首字母，效果很好。但是当我将数据插入主服务器时，它根本没有被复制到从服务器。我已经尝试重新启动 master 和 slave mysqld 进程，并在 slave 上“slave stop / slave start”。这是怎么回事？

掌握

配置：

server-id               = 1
log_bin                 = /var/log/mysql/mysql-bin.log
expire_logs_days        = 10
max_binlog_size         = 100M
  binlog_do_db            = pchelp
  binlog_ignore_db        = mysql
  binlog_ignore_db        = test

mysql> 从 pchelp.test_table 中选择 *；

+----+---------+
| id | sometxt |
+----+---------+
|  1 | x       |
|  2 | x       |
|  3 | y       |
|  4 | z       |
|  5 | p       |
|  6 | i       |
+----+---------+
6 rows in set (0.00 sec)

mysql> 显示主机状态 \G

*************************** 1. row ***************************
            File: mysql-bin.000009
        Position: 106
    Binlog_Do_DB: pchelp
Binlog_Ignore_DB: mysql,test
1 row in set (0.00 sec)

奴隶

配置：

server-id               = 2
  master-host               = hidden.x.xx
  master-user               = replication
  master-password           = hidden
  master-port               = 3308
  replicate_do_db           = pchelp

mysql> 从 pchelp.test_table 中选择 *；

+----+---------+
| id | sometxt |
+----+---------+
|  1 | x       |
|  2 | x       |
|  3 | y       |
|  4 | z       |
|  5 | p       |
|  6 | i       |
+----+---------+
6 rows in set (0.00 sec)

mysql> 显示从站状态 \G

*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: hidden.x.xx
                  Master_User: replication
                  Master_Port: 3308
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000009
          Read_Master_Log_Pos: 106
               Relay_Log_File: mysqld-relay-bin.000002
                Relay_Log_Pos: 251
        Relay_Master_Log_File: mysql-bin.000009
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: pchelp
          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: 106
              Relay_Log_Space: 407
              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:
1 row in set (0.01 sec)

掌握

插入 pchelp.test_table (id,sometxt) 值 (7,'q');

Query OK, 1 row affected (0.00 sec)

mysql> 从 pchelp.test_table 中选择 *；

+----+---------+
| id | sometxt |
+----+---------+
|  1 | x       |
|  2 | x       |
|  3 | y       |
|  4 | z       |
|  5 | p       |
|  6 | i       |
|  7 | q       |
+----+---------+
7 rows in set (0.01 sec)

mysql> 显示主机状态 \G

*************************** 1. row ***************************
            File: mysql-bin.000009
        Position: 106
    Binlog_Do_DB: pchelp
Binlog_Ignore_DB: mysql,test
1 row in set (0.00 sec)

奴隶（插入主人后）

mysql> 从 pchelp.test_table 中选择 *；

+----+---------+
| id | sometxt |
+----+---------+
|  1 | x       |
|  2 | x       |
|  3 | y       |
|  4 | z       |
|  5 | p       |
|  6 | i       |
+----+---------+
6 rows in set (0.01 sec)

mysql> 显示从站状态 \G

*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: hidden.x.xx
                  Master_User: replication
                  Master_Port: 3308
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000009
          Read_Master_Log_Pos: 106
               Relay_Log_File: mysqld-relay-bin.000002
                Relay_Log_Pos: 251
        Relay_Master_Log_File: mysql-bin.000009
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: pchelp
          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: 106
              Relay_Log_Space: 407
              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:
1 row in set (0.00 sec)

任何人对可能出现的问题有什么好主意？用户“复制”具有完全权限（在主从上运行）；

grant replication slave on *.* to replication@'%' identified by 'hidden';
GRANT ALL PRIVILEGES ON pchelp.* TO replication;

再一次，LOAD DATA FROM MASTER;命令工作得很好..我不明白。

linux

1 个回答

  1. Best Answer

    要么binlog_do_db或binlog_ignore_db可能不按照您认为的方式工作。 这是 Baron Schwarz 解释原因的原因。我的猜测是，在您编写该命令之前，您要么编写了USE mysql要么USE test。由于这两个数据库被忽略，因此您在使用该数据库时运行的任何语句，即使它们写入另一个数据库，也会被忽略。

    您的命令INSERT的输出中有一个暗示，即主服务器甚至没有将该语句写入二进制日志。SHOW MASTER STATUS\G声明之前和之后INSERT：

    Position: 106

    从站也有相同的位置，这解释了为什么它认为它工作正常：

    Read_Master_Log_Pos: 106

    建议：删除binlog_do_db和binlog_ignore_db配置选项。如果您需要过滤，请在奴隶上进行。

    • 3

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