If it was me I would probably code the loop something like this:
CHKOBJ OBJ(Yourlib/Q123) OBJTYPE(*FILE)
MONMSG MSGID(CPF9801) EXEC(GOTO CMDLBL(LOOP))
/* Object Q123 in library Yourlib not found. */
To stop it just do CRTPF FILE(Yourlib/Q123) RCDLEN(132)
Of course I'm not really a programmer, I just play one on TV...
Senior IBM Support Specialist
From: John Earl [mailto:john.earl@xxxxxxxxxxxxx]
Sent: Friday, September 05, 2008 11:14 PM
To: Midrange Systems Technical Discussion
Subject: Tight loop - stopping the error
Here is an interesting problem.
We're stress testing an application and need to generate and enormously
large number of audit journal entries as quickly as possible. "T" type
entries are what we're after but really any entry type will do. So if
you have an idea how to do that, please chime in.
Here is one idea that I had, but I don't know how to stop it once we
begin. Any ideas on this particular approach would be greatly
appreciated. Here is the plan:
1. Create a User called "Fred"
2. Give "Fred" *EXCLUDE authority to the QSYSOPR message queue.
3. Have "Fred" submit a batch job that does a "SNDMSG 'Hello World'
Because "Fred" has *EXCLUDE authority to QSYSOPR, this command will
generate an 'T' 'AF' audit journal entry in QAUDJRN. Because it is done
in a batch job, the batch job attempt to throw and exception error
message into QSYSOPR, but because "Fred" is still *EXCLUDED from message
queue QSYSOPR, the process will generate another 'T' 'AF', and yet
another error message headed for QSYSOPR, etc. etc. in a very tight
This seems like a good way to generate a ton of audit log entries, but
the question is this: How do you stop it before it runs away with your
system? Can anyone think of a way to interrupt this process?
John Earl, VP and Chief Technology Officer
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