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replication and the mysql database
Posted by: Tim Rosine
Date: August 30, 2005 03:17PM

Using mysql 4.1.10a, I'm setting up replication in dual master/slave setup:
s1 <-> s2

The main stuff is working just fine, but I have one concern - I am replicating ALL of mysql, including the mysql database (GRANT REPLICATION SLAVE ON *.*). It seems like this causes a problem with authentication when on one of the local servers.

mysql> select @@server_id,user,host from mysql.user where user='root';
| @@server_id | user | host |
| 2 | root | s1 |
| 2 | root | localhost |

s2 /root# mysql -h s2 -u root -p mysql
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'s2' (using password: YES)

I'm sure I could get around the issue by creating an additional grant for 'root'@'s2' (or 'myapp'@'%' for applications), but I was wondering if it would be preferrable to exclude mysql.* from replication instead. I like the ability to create users once and have them show up on all servers.

I haven't found much information about recommendations online - probably because it's too hard to search for "mysql replication" or any of the other variants and get what I want.

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replication and the mysql database
August 30, 2005 03:17PM
September 12, 2005 02:57PM

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