Mysql master-master replicate only one database ignore the others

Question

I have two servers server1 and server2 that I've setup a master-master replication

But on server1 I have a lot of databases and on server2 I have only one that is the database I want to replicate with server1

I've setup the replication and it was working fine but after someone started altering some other database on server1 and I started getting these errors on server2 replication

"Error 'Table 'database.table' doesn't exist' on query. Default database: ''"

I think it's because server2 only has the database I want to sync

Here is the my.cnf configuration on Server2

Server2

server-id               = 1
log_bin                 = /var/log/mysql/mysql-bin.log
expire_logs_days        = 10
max_binlog_size         = 200M
binlog_do_db            = databaseiwanttosync
binlog-checksum         = none
binlog_ignore_db        = information_schema,mysql,performance_schema
auto_increment_increment= 2
auto_increment_offset   = 1

Server1

server-id               = 2
log_bin                 = /var/log/mysql/mysql-bin.log
expire_logs_days        = 10
max_binlog_size         = 200M
binlog_do_db            = databaseiwanttosync
#binlog-checksum                = none
binlog_ignore_db        = information_schema,mysql,performance_schema,phpmyadmin
auto_increment_increment= 2
auto_increment_offset   = 2

Answer 1

Use --replicate-do-db=db_name

Tell the slave SQL thread to restrict replication to statements where the default database (that is, the one selected by USE) is db_name. To specify more than one database, use this option multiple times, once for each database; however, doing so does not replicate cross-database statements such as UPDATE some_db.some_table SET foo='bar' while a different database (or no database) is selected.

Source: http://dev.mysql.com/doc/refman/5.6/en/replication-options-slave.html#option_mysqld_replicate-do-db