Not too sure what you mean by "How is your database storage set up?"
I have one MySQL server (qm01) with qloaderd.pl on each server (sip01, sip02, sip03, sip04 and pbx01) writing to uniquie partitions (P001, P002, P003, P004, P006 respectivly) in the same queue_log table. I have the magic "default.queue_log_file=cluster:*" in my config file and each of the server setup in "cluster.servers=sip01|sip02|sip03|sip04|pbx01" so "cluster.sip01.queuelog=sql:P001", "cluster.sip02.queuelog=sql:P002", etc
Is that what you are asking?
Tony