Re: Best way to access QHST programatically

Adrienne,
 
If you have access to the source code that the jobs are running, it might be
a lot simpler to call a custom module at start of job and also at job
termination (both normal and any error condition). These modules can
retrieve the data you require from the RTVJOBA command and write to your own
customised log file. 
 
Downside is that you have to touch the source code of each job running that
you want to track, but probably a lot easier than retrieving from QHST.
 
Robin

  _____  

From: cobol400-l-bounces@xxxxxxxxxxxx
[mailto:cobol400-l-bounces@xxxxxxxxxxxx] On Behalf Of Adrienne McConnon
Sent: Monday June 19, 2006 14:11
To: cobol400-l@xxxxxxxxxxxx
Subject: Re: [COBOL400-L] Best way to access QHST programatically



 Tom,

I am relatively new to the iSeries and I appreciate your assstance.

Thanks so much for your response.  I noticed the documentation you
directed me to was for V5R4 - we are still on V5R2 - does this make a
difference?

Also, all of our systems are batch-oriented, which is why I want to use
the QHST log file - not the QHST queue.  I want to simply start out
accessing the QHST files and then selectively filtering messages based
up[on job name, or rather partial job name.  I am assuming I will need
to first list and mergelog files to include logs for a few days.  I want
to retrieve and report all of the jobs that rean for client xxx (part of
the job name) for the last 2 days and report the status of the job and
maybe who submitted the job.  I do not need to know the specifics of
what the job entailed - more specifically whether it ran to completion
successfully or not.

Any comments, let me know - as I said I am new at this on the Iseries.

Thanks,

Adrienne



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Today's Topics:

   1. Re:  Best way to access QHST programatically
      (qsrvbas@xxxxxxxxxxxx)


----------------------------------------------------------------------

message: 1
date: Fri, 16 Jun 2006 19:13:28 -0400
from: qsrvbas@xxxxxxxxxxxx
subject: Re: [COBOL400-L] Best way to access QHST programatically

cobol400-l-request@xxxxxxxxxxxx wrote:

  1.  Best way to access QHST programatically (Adrienne McConnon)

I am going to be writing a COBOL program to access/report on job

status'

in the QHST file.  Anybody know if there is a better way to do this
besides using the QMHRCVPM API ( receive program message).  I have seen

documentation on the History Utility - but I have not been able to get
that to function - is it a product that needs to be purchased?  Anybody

have a sample or snipit of QHST accessing API's in COBOL?

Adrienne:

There seems to be some confusion about QHST and how APIs might be used.
First, the QHST message queue isn't a program message queue, so QMHRCVPM
wouldn't be appropriate. Instead, for most message queues, you'd use
QMHRCVM (receive NON-program messages).

Unfortunately, the QHST message queue is a special case. You can't
normally receive messages from it. It's restricted in that way.

Also, if you _could_ receive messages from it, you might not want to
because messages aren't kept in the QHST message queue for long in many
cases. In some cases, messages might be there for only fractions of a
second. The message data gets moved to the QHST log physical files
automatically at intervals (more or less) and removed from the message
queue.

For general details, see:

http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/r
bam6/systl.htm
or
http://makeashorterlink.com/?V21262A4D

Read that page carefully, especially the later parts that discuss how
message data gets from the message queue to the log files.

Your programming will be far easier once that page is understood. (And
your programming will be _very_ difficult without it!)

Tom Liotta

--
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone  253-872-7788 x313
Fax    253-872-7904
http://www.powertech.com


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