MySQL Replication – Duplicate Delete Query in Binary Log of MySQL Master

The Primary thing you need to do was left in a comment:

Follow the suggestion in Duplicate entry in MySQL slave:

STOP SLAVE;
SET GLOBAL sql_slave_skip_counter=1;
START SLAVE;

However, here is how you can start off at the better position with the CHANGE MASTER TO command.

Let's take a look at a sample SHOW SLAVE STATUS\G

               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.4.16.245
                  Master_User: replicant
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.001527
          Read_Master_Log_Pos: 554619670
               Relay_Log_File: relay-bin.004561
                Relay_Log_Pos: 554619815
        Relay_Master_Log_File: mysql-bin.001527
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: phpmyadmin
           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: 554619670
              Relay_Log_Space: 554620007
              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:

Please take note of Relay_Master_Log_File and Exec_Master_Log_Pos. These represent the log file and the position of the last SQL statement that was completed on the Master that is next in line to be executed on the Slave.

So, the CHANGE MASTER TO in this case would be:

CHANGE MASTER TO master_log_file='mysql-bin.001527',master_log_pos=554619670;

For your particular case, here is what you need to do on the Slave Server:

Step 01) Start mysql up with replication disabled at startup

$ service mysql restart --skip-slave-start

Step 02) Login to mysql and show the slave status:

mysql> SHOW SLAVE STATUS\G

Step 03) Get Relay_Master_Log_File and Exec_Master_Log_Pos from SHOW SLAVE STATUS\G

Step 04) Run CHANGE MASTER TO command using Relay_Master_Log_File and Exec_Master_Log_Pos

This will erase any relay logs collected and start collecting with a fresh, empty relay log.

Step 05) mysql> START SLAVE;

Step 06) mysql> SHOW SLAVE STATUS\G repeatedly to watch Seconds_Behind_Master go to 0

Step 07) If replication breaks due to Error 1062 (Duplicate Key), now you can implement @DTest's suggestion. Then, goto Step 06. Repeat this until Seconds_Behind_Master go to 0.

We stopped at log 'mysql1-bin.000362' position 3384732.

That's what you use:

CHANGE MASTER TO master_log_file='mysql1-bin.000362'. master_log_pos=3384732;

If you ran RESET SLAVE on the Slave, do not despair. Just run the full syntax version of the CHANGE MASTER TO command:

CHANGE MASTER TO
MASTER_HOST='IP Address of Master',
MASTER_PORT=3306,
MASTER_USER='Replication Username',
MASTER_PASSWORD='Replication Password',
MASTER_LOG_FILE='mysql1-bin.000362',
MASTER_LOG_POS=3384732;

Using replicate-wild-do-table=% is not the correct way to get complete replication. That would seem sensible, but here's why it isn't:

• The replicate-* options are restrictive by their presence. The *-do-* options seem to be telling the server what to "do," but in fact they are telling the server what to only do.

• The complete absence of any replicate-* configuration variables means "replicate everything."

In the simplest case, when there are no --replicate-* options, the slave executes all statements that it receives from the master. Otherwise, the result depends on the particular options given. -- http://dev.mysql.com/doc/refman/5.5/en/replication-rules.html

That, I think, is the point you are needing. It holds true for all MySQL 5.x.

Once you enable binary logging, set the server-id values on each machine, synchronize the data sets, CHANGE MASTER TO ..., and then START SLAVE, then you should have a working configuration where all DML and DDL will be replicated and your servers will be identical replicas of each other.

If you started out with identical data sets, everything should behave exactly as you would expect it to.

What MySQL replication does best and simplest is replicate entire data sets among servers without any restrictions. Trying to restrict replication to a subset of the data is a process that should carry a warning label that ends with the phrase "...unless you really know what you're doing."

When you use the --replicate-* options, the document cited above also offers this tip:

it is recommended that you avoid mixing “do” and “ignore” options, or wildcard and nonwildcard options

You are using a mix of these, which adds complexity and may explain why your DDL didn't replicate as you expected it to.