Well, the obvious suggestion is that DSN's can contain IBM's "national 
characters": @, #, and $
z/VM defaults don't care about the $-sign, but older VM systems and apps 
may care about the @ (character delete) and # (linend) characters.

If the DSN with those special characters was rear from a file and passed 
directly to the TSO stage, it would keep the Pipe from attempting to 
process them (perhaps even as your own STAGESEP or other characters), 
right?

Does the comment  " /* avoid RXG abend */" help so shed any light on your 
mystery?  What's an RXG ABEND?

Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.



"Glenn Knickerbocker" <[email protected]> 

Sent by: "CMSTSO Pipelines Discussion List" <[email protected]>
04/16/2010 02:31 PM
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Subject
TSO stage abends?






I went to share a TSO pipeline with someone and found that I had written
myself a TSOEACH REXX stage last year to issue each TSO command in a
separate pipeline, with only the cryptic comment:

  /* avoid RXG abend */
  'addpipe *: | specs "callpipe tso " 1 1-* n "||*:" n | pipcmd | *:'

More mysteriously, I apparently already tried rewriting the stage
earlier this year to have each TSO stage read a command from the input
file instead, to avoid collisions with pipeline characters--and then
went back to the original version!

Unfortunately, I didn't keep notes of exactly what was abending, and now
I can't come up with a case that works one way but not the others. 
Obviously it wasn't invalid commands--PIPCMD stops on a negative return
code just like TSO (and SUBCOM, CMS, COMMAND, CP).  All three ways seem
to continue fine after a command with invalid parameters.  It doesn't
seem to matter whether PIPE was called from the command line or a REXX
exec, or whether SYSTSPRT is allocated or not.

Where I used it was in issuing LISTDS (dsn) MEMBERS commands.  Anybody
have an idea what problem I might have run into that would actually have
been solved by putting the command in the argument to the TSO stage?

¬R





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