Jessica,
The error message "pq_del_oldest: conflict on ..." is described in
ine LDM trouble shooting web page at:
http://www.unidata.ucar.edu/packages/ldm/troubleshooting/pq_del_oldest.html
One possible cause for receiving the message is that your queue is too
small, or that a sender has fallen behind so that the attempt to
insert a new product is in conflict with a process holding the region.
See the above web page for ways to try to determine what the cause
of the conflict is, and possible remedies.
