Customer reported this DNS error
Jan 21 03:26:49 nvm002314 messagequeue : 49.743131 | 0 | 0 | 0 | 0 E 31 CAL0000: I
MessageQueueClient :: setup (): unknown name or service
Problem is caused by a ExeMgr entry in the Columnstore.xml have IP Address assigned to 'unassign'
1. The removemodule in ProcMgr is doing this, setting that entry to unassigned since there is currently no way to delete entries from the Columnstore.xml
2. The connector or whomever is reading this entry is trying to do a DNS lookup on it. So maybe that code needs to check for unassigned and ignore this entry