I'm cross-posting to MVS-OE, a better source for this info.
On Jun 28, 2009, at 05:44, Rob Lister wrote:
Hi Folks,
I am working for a company who are implementing a POSIX application
on zOS
and, as a zOS sysprog, I am struggling with a couple of issues.
Whilst I am
getting into the USS manuals, I thought I would see if anyone has
already
been through this pain and maybe get a few dumb questions answered
before
I go bog-eyed?
I'm not slagging off USS as right now, I don't know enough to
either praise or
criticise it. It is just different to everything I have come across
before in my
insular,comfy and well worn slipper-like MVS career.
Our application runs as 10 or more POSIX processes under USS. We
use an
Application Management task to start/stop and own the processes so
our first
address space is Appl Mgmnt and all subsequent processes assume
this name
via exporting a _BPX_JOBNAME parameter. Unfortunately, right now I
don't
seem to be able to get much further than all the processes taking
the same
name as exported via _BPX_JOBNAME associated with Appl mngmnt with
1,2,3,4, etc appended as a suffix. Whilst this an improvement on
userid/suffix,
it still doesn't allow me to identify the process via a useable
name. What I'd
like to see is each process be given a unique name to identify the
actual
process that is running.
I can't even get this far. The command:
u...@mvs:133$ for I in A B C D; do BPX_SHAREAS=NO
_BPX_JOBNAME=JOB$I sleep 22 & done
causes SDSF DA to show 4 processes as UserID + one character.
Because all the processes are started via appl mngmnt, when I added a
_BPX_JOBNAME to each startup script, this was ignored and the
_BPX_JOBNAME allocated to app mngmnt used for all subsequent
processes.
The Application Management task is obviously required for our
application on
other platforms but I would have thought that on Z we already have
everything that our App mngmnt task does. If I was to remove app
mngmnt,
could I sub JCL via OPC/TWS or by automation?
So here goes with a few Dumb questions:
1) The processes show as STC so I assume there must be JCL behind
them?
2) If so, how can I see this JCL as looking via SDSF(PS) I see
nothing. When I
look at the startup process, all I see is a shell script?
The address spaces are created with job name BPXAS. Scan
SYSLOG for:
08:17:33.95 STC08607 00000281 $HASP100 BPXAS ON STCINRDR
08:17:34.00 STC08607 00000281 $HASP373 BPXAS STARTED
08:17:34.02 STC08607 00000090 IEF403I BPXAS - STARTED -
TIME=08.17.34
08:17:34.02 STC08607 00000290 BPXP024I BPXAS INITIATOR STARTED
ON BEHALF OF JOB ...
These are maintained with a HWM technique, so you won't see
one for every fork()
3) Do/can USS processes run under JES control? (I assume not as we
have
sometimes two or three processes with the same name which is a no-
no in Z)
4) Can OPC/TWS sub/control tasks to USS?
I did warn you these were dumb questions but any/all ideas, tips,
tricks and
gotchas would be most welcome even if they are just pointing me to
specific
topics in the manuals.
Many thanks to anyone inclined to respond.
In the meantime, I will search the archives to see if any of these
dumb
questions have been answered before.
Regards,
Rob Lister
Technical Consultant
ACI Worldwide Limited
-- gil
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