InfoPrint PDF: Inconsistent Failures with CPF3433

["Lennon_s_j@xxxxxxxxxxx" <lennon_s_j@xxxxxxxxxxx>]

 Our nightly batch process uses InfoPrint to create PDFs on the IFS.

Occasionally, maybe once a month, the writer issues message CPF3433, 
“Printing of file xxxxx by writer DSTVPRT2 not complete” and holds the 
spool file on the OUTQ.  The PDF does not get created.

Spool files hit the OUTQ in quick succession, but the creation is single 
threaded.  Basic process is to create the spool file on hold, then 
duplicate it to another OUTQ using APIs. The second OUTQ is where the 
InfoPrint PDF creation takes place.

It isn’t always the same spool file, but it always seems to be at the 
last page when it fails (according to the second level text of CPF3433.)

We have an exit program that sets the PDF name, and from dumps from the 
exit program it appears that InfoPrint has created a PDF and is failing 
when trying to apply the final name.

It is not a naming problem, because we use the same program-generated 
directory structure and PDF name each time, and it is only occasionally 
that it fails and not always on the same spool file.  And if we just 
release the held spool file the PDF gets created on the IFS as expected.

There is nothing useful that I can find in the job logs of the 3 jobs 
associated with the writer.  They have all been running for about 20 days.

I suppose it might be a timing issue with the order that the spool files 
hit the OUTQ, but I’m not sure how I could debug that.

I suppose that it might be another job that has some kind of lock on the 
IFS at that instant, but it appears that other than our single thread 
batch process, the only other jobs running are system tasks and Mimix tasks.

Any thoughts would be appreciated.