Hi Jacek, Here's the address of the mailing list related to [log in to unmask] We may ask for subscription for Qserv engineers who will use the cluster? It might be a way to get quick support specifically for the cluster. Cheers, ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1