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I ran across some interesting message behavior yesterday. First a bit
of background so you know where I'm at.
The salespeople transmit orders from their laptops into the iSeries. I
have 2 message queues defined, ACCESS and ORDERS. ACCESS contains a
number of messages from each transmission: The fact it started, who it
is, what they're sending in, when it finished, etc. The purpose of
ACCESS is if there is a problem, I can see a lot of detail as to what
went on. ORDERS contains 1 message per order transmitted. The purpose
of ORDERS is for the system operator to easily check who has
trannsmitted today and who hasn't.
Yesterday about 4pm the system operator came in and said she had a
problem. ORDERS was completely empty. I looked at it and it was. I
immediately thought someone (probably her) had hit F13 while viewing it.
Checked authority and *PUBLIC can only add messages and view it.
Hmmm. Checked the auditing journal and found nothing. Then I looked at
ACCESS message queue. Only the 'Transmission finished' messages were
there with a number of blank lines in between!
To make a long story short, I have a message member I created years ago
with all my error messages, info messages, etc. I put in a USR9897 and
USR9898 which are essentially clones of CPF9897 and CPF9898, i.e., the
first level message is "&1" and "&1." respectively. I used USR9897 to
send these messages.
I had been looking at USR9897 with a utility, WMF, that I downloaded
from somewhere. WMF evidently has a bug to where it removes the &1 so
the message after that was ' '. When I put the &1 back in, all the
message reappeared! I learned something new. Messages in message
queues are evidently just links back to the message member. If you
change a message in a message member, all occurrences of that message in
message queues are immediately changed. Even if they were sent hours
before. I never knew that.
And now everybody will chime in and say they already knew that, where
have you been? <g>
--
Jeff Crosby
Dilgard Frozen Foods, Inc.
P.O. Box 13369
Ft. Wayne, IN 46868-3369
260-422-7531
The opinions expressed are my own and not necessarily
the opinion of my company. Unless I say so.
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