Problems with button Migrate Global Tables

All I was looking for was the configuration settings (the part you edited) not the entire file:

// how many characters of hexidecimal hash
$shardb_hash_length = 1;
// what is the prefix of your blog database shards (everything before the hexidecimal hash)
$shardb_prefix = ‘publibrn_’;
// set a string to be used as an internal identifier for the dataset
$shardb_dataset = ‘pub’;
// do you want to put your primary blog (blog_id 1) in its own ‘home’ database?
$enable_home_db = true;
// how many, if any, VIP databases do you have?
$num_vipdbs = 1;
// add this to set the write master read priority (default 1)
$shardb_master_read = 99;
// add this if all of your databases are on a local server
$shardb_local_db = true;
// use this function to add a read slave host
add_slave($read_priority, $hostname, $local_hostname, $user, $password);

Most likely your problem is one or more of the following

$num_vipdbs = 1;
// add this to set the write master read priority (default 1)
$shardb_master_read = 99;
// use this function to add a read slave host
add_slave($read_priority, $hostname, $local_hostname, $user, $password);

Don’t tell SharDB you have VIP databases if you don’t. The home DB is not counted as a VIP one.

Don’t tell SharDB you have MySQL read slaves if you don’t have MySQL set up with write masters and read slaves.

Glad you got it sorted out 🙂