Re: Data Queue's

["Kathleen Kostuck" <kkostuck@xxxxxxxxxx>]

RD,

It sounds to me as though the home-grown utility isn't in a constant wait
state on the data queue, but is firing up and doing one QRCVDTAQ, either
finding an entry or not, then ending?  

If this is the case, you can change your WAIT parameter to a negative
value, and start the program in a subsystem where it won't get in the way.
The job will sit in a wait state until a data queue entry is received, then
continue to the next line of code. This is a much more efficient way of
doing it, and if you are still missing an occasional entry, then you need
to look at your utility code to see why.

HTH,

Kathleen Kostuck
___________________
pager (414) 402-0820       fax (414) 495-4986
kkostuck@execpc.com
AS400 Solutions
Secretary - Wisconsin Midrange Computer Professionals Association   
___________________

----------
> From: RDJessen@aol.com
> To: MIDRANGE-L@midrange.com
> Subject: Data Queue's
> Date: Tuesday, September 22, 1998 8:42 PM
> 
> I need some information on when data gets written to a data queue when a
spool
> file is created.  I am supporting a utility (written by a former employee
of
> course) that reads a data queue to find newly created spool files.  The
> utility is an asynch program that fires up every 30 seconds and moves the
> spool file from one output queue to another for printing and archiving.
> Occassionally the utility misses a spool file.  When I manually move the
spool
> file to another output queue and back again, the utility is able to find
and
> process it.
> 
> I suspect I have a timing problem...that the data queue is loaded with
> information for the spool file before the spool file status is changed to
> 'RDY'.  The utility program grabs information from the data queue and
tries to
> move the spool file but fails because it is not in RDY status.
> 
> I've tried changing the SCHEDULE parameter on the printfile to *IMMED
with no
> success.  Can someone help me understand exactly when information is
written
> to the data queue and can it be controlled to coincide with the change of
the
> status from 'OPN' to 'RDY'?
> 
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