Miningcore/Alphaxcore - shares table - column source empty

[tdvoracek]

Hello,
is a problem when source column is empty? Same on alphaxcore and miningcore.
thanks

[belmix]

"clusterName": "eu1", in pool_config.json

[tdvoracek]

ok, now i can see eu1 in db, what does that mean please?
is that important or just name and system can work without?
is there also cluster for USA?

thanks