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Hi Bob, In addition to what Steve wrote, I feel compelled to add the following: Processes to which products are PIPEd by 'pqact' are responsible for reading the entire product. If the entire product is not read (i.e., the pipe is not emptied, then 'pqact' will think that the action failed and it will try the PIPE one more time. This will result in log messages similar to the one you included in your original inquiry and could be confusing if the process is creating expected output. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: EPA-318197 Department: Support LDM Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.