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From:Rick James Date:June 25 2011 12:07am
Subject:Re: Mysql 5.5 multi master replication
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A "master" starts a new binlog whenever it is restarted, or a FLUSH LOGS 
is performed.  (And possibly other times.)  Each of the two machines is 
both a Master and a Slave.  I would _guess_ that one of those things 
happened.

Note, that also means that the offset into the binlogs is likely to get 
out of sync.  This is normal.

The relay logs are similarly restarted at potentially inconsistent 
times, leading to divergent names and/or positions.

On 6/24/11 4:56 PM, Alexis Guajardo wrote:
> This might be basic but did you set the bin log position on both
> servers?  from the slave status it looks like one is at 000008 and one
> is at 000007
>
>
>
> On Fri, Jun 24, 2011 at 1:56 PM, Rick James<rjames@stripped>  wrote:
>> I assume that 'replpassword' is not the real password?  (It does not match
>> the GRANT.)
>>
>> There must be an error file somewhere.
>>
>> SHOW SLAVE STATUS has enough information to say that the connection was
>> made.  Plz provide an example of a statement that fails to replicate.  (Be
>> specific about what database that statement hits.)
>>
>> Use mysqlbinlog to dump the binlogs (don't provide the info here).  See if
>> there is something other than a header in each.
>>
>> On 6/23/11 5:52 PM, list@stripped wrote:
>>> On Thu, 23 Jun 2011 16:40:26 -0700, Rick James<rjames@stripped>
>>> wrote:
>>>> "no luck" is rather vague.
>>>>
>>>> For both servers...
>>>> What does mysqld.err say?
>>>> SHOW SLAVE STATUS \G
>>>> SHOW MASTER STATUS;
>>>> SHOW GRANTS FOR repl@'%';
>>>>
>>>> Rick James - MySQL Geek
>>> Rick,
>>>
>>> There is no mysqld.err or mysql-bin.err file anywhere on the server, but
>>> here are the other configs.
>>>
>>> Server 1:
>>> ----------------------------
>>> Slave status
>>>
>>> *************************** 1. row ***************************
>>>                 Slave_IO_State: Waiting for master to send event
>>>                    Master_Host: 10.123.70.11
>>>                    Master_User: repl
>>>                    Master_Port: 3306
>>>                  Connect_Retry: 60
>>>                Master_Log_File: mysql-bin.000007
>>>            Read_Master_Log_Pos: 107
>>>                 Relay_Log_File: mysqld-relay-bin.000021
>>>                  Relay_Log_Pos: 253
>>>          Relay_Master_Log_File: mysql-bin.000007
>>>               Slave_IO_Running: Yes
>>>              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: 556
>>>                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:
>>>    Replicate_Ignore_Server_Ids:
>>>               Master_Server_Id: 2
>>>
>>> Master status:
>>>
>>> +------------------+----------+--------------+------------------+
>>> | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
>>> +------------------+----------+--------------+------------------+
>>> | mysql-bin.000008 |      107 | cmgapp,puma  |                  |
>>> +------------------+----------+--------------+------------------+
>>>
>>> Grants:
>>>
>>> SHOW GRANTS FOR repl@'10.123.70.11'\G;
>>> *************************** 1. row ***************************
>>> Grants for repl@stripped: GRANT REPLICATION SLAVE ON *.* TO
>>> 'repl'@'10.123.70.11' IDENTIFIED BY PASSWORD
>>> '*8EFB117805381DD9B0A1D5D9BAB4D1EB7AD76198'
>>>
>>>
>>> Server 2
>>> ----------------------------
>>>
>>> *************************** 1. row ***************************
>>>                 Slave_IO_State: Waiting for master to send event
>>>                    Master_Host: 10.123.70.10
>>>                    Master_User: repl
>>>                    Master_Port: 3306
>>>                  Connect_Retry: 60
>>>                Master_Log_File: mysql-bin.000008
>>>            Read_Master_Log_Pos: 107
>>>                 Relay_Log_File: mysqld-relay-bin.000013
>>>                  Relay_Log_Pos: 253
>>>          Relay_Master_Log_File: mysql-bin.000008
>>>               Slave_IO_Running: Yes
>>>              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: 556
>>>                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:
>>>    Replicate_Ignore_Server_Ids:
>>>               Master_Server_Id: 1
>>>
>>> Master status:
>>>
>>> +------------------+----------+--------------+------------------+
>>> | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
>>> +------------------+----------+--------------+------------------+
>>> | mysql-bin.000007 |      107 | cmgapp,puma  |                  |
>>> +------------------+----------+--------------+------------------+
>>>
>>> Grants:
>>>
>>> SHOW GRANTS FOR repl@'10.123.70.10'\G;
>>> *************************** 1. row ***************************
>>> Grants for repl@stripped: GRANT REPLICATION SLAVE ON *.* TO
>>> 'repl'@'10.123.70.10' IDENTIFIED BY PASSWORD
>>> '*8EFB117805381DD9B0A1D5D9BAB4D1EB7AD76198'
>>>
>> --
>> Rick James - MySQL Geek
>>
>>
>> --
>> MySQL Replication Mailing List
>> For list archives: http://lists.mysql.com/replication
>> To unsubscribe:
>>   http://lists.mysql.com/replication?unsub=1
>>
>>
>
>

-- 
Rick James - MySQL Geek

Thread
Mysql 5.5 multi master replicationlist23 Jun
  • Re: Mysql 5.5 multi master replicationRick James24 Jun
Re: Mysql 5.5 multi master replicationRick James24 Jun
  • Re: Mysql 5.5 multi master replicationAlexis Guajardo25 Jun
    • Re: Mysql 5.5 multi master replicationRick James25 Jun
      • Re: Mysql 5.5 multi master replicationAlexis Guajardo25 Jun
        • Re: Mysql 5.5 multi master replicationRick James2 Jul
          • Re: Mysql 5.5 multi master replicationAlexis Guajardo2 Jul