BMP to invoke an MPP

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Hi,
I have a requirement wherein IMS transaction(which does not interact with any terminals, as in, screens) has to be triggered daily at 6 in the morning.
I thought of this process, but not sure whether it is proper!

>>Have a BMP program which will have the following step to invoke the MPP.
CALL 'CBLTDLI' USING DLI-CHNG
TPPCB
<<MPP Transaction>>
CALL 'CBLTDLI' USING DLI-ISRT
TPPCB
<<MPP Transaction Message>>

Once this MPP Transaction gets invoked, will this(IMS transaction program) run as a MPP or a BMP program?
The reason being, my IMS transaction program does not have any 'Checkpoint' and hence, if this is going to run as a BMP and is going to abend, then all the database updates made would not get saved.
This is the reason why I want to run my IMS transaction program as a MPP.

Note: This MPP is an existing transaction program, hence cannot be modified to introduce any 'checkpoint'

Please let me know if there is any other process wherein the IMS transaction can be triggered automatically?

dick scherrer · Posted: Sat Mar 21, 2009 7:09 am

Hello,

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

dick scherrer · Posted: Sat Mar 21, 2009 7:45 am

Hello,

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

dick scherrer · Posted: Sat Mar 21, 2009 11:33 am

You're welcome - Good luck

Let us know your eventual solution/implementation.

d

Sandy Zimmer · Posted: Sat Mar 21, 2009 4:48 pm

Do you have any scheduling packages in your environment - such as CA-7?

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Hi Sandy,

Yeah we have OPCE.

Earlier I thought of having a program which will be scheduled to run at 6(batch job). This program will populate a MQ and thru this triggr my IMS transaction. (using IMS trigger monitor progrm CSQQTRMN). Later i found tat this trigger monitor is not available.
So, i thought of going for this approach wherein i will have a BMP to trigger my IMS transaction(and let it run as a MPP)

Please let me know if my understanding "an IMS transaction, when invoked from a BMP batch program , will run as a MPP only" is correct or not?

Sandy Zimmer · Posted: Sat Mar 21, 2009 8:39 pm

OK. What time do they bring the databases offline for maintenance? Let's think about setting up a transaction class that only comes up when the databases are brought back up. Then we can assign that MPP transaction to that class. BMP means batch message processing. What will be the purpose of your MPP?

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Hi Sandy,

Normally it is down frm 11p.m till 3 a.m ... .

I can provide my scenario in detail
- I have a IMS screen and the transaciton pgm A and this A calls another pgm B(which is a common module - has the functionality.. and this pgm B does not have any check points)
I need to invoke this pgm B every day morning at 6 somehow.

So, i thought of having a job(scheduled for 6 O clock) to execute a BMP program which will invoke a IMS transaction "C". This C will call the common module "B".

If this pgm B (when invoked by transaction pgm "C") is going to run in BMP then, since it does not have checkpoint when it errors out, it is in trouble. If it runs as MPP, since the database updates get saved automatically, it shudnt be a problem.

Sandy Zimmer · Posted: Sat Mar 21, 2009 9:17 pm

There are always many solutions to a problem. Think about this.......if your program runs quickly why do you need checkpoints? If your database is HUGE and/or your process is long running - then yes. However, backups and restores of a database is an option. I never used checkpoints in quick running BMP programs. Just think about it....

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Hi Sandy,
Thanks for the reply!!

I think I will keep my query short.

Is it possible to invoke an IMS Transaction(say C) from a BMP program, using the following command?

Sandy Zimmer · Posted: Tue Mar 24, 2009 5:09 am

Is your transaction and/or PSB defined in that region and started?

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Yes Sandy,
the Transaction and BMP's are defined in the respective region.

Before I submit the BMP , I checked the Transaction/PSB "C" whether it is in normal status(i.e NOT STOPPED).

Once I submit the job and check in IMS region, i find the transaction/PSB to be STOPPED status.

Sandy Zimmer · Posted: Tue Mar 24, 2009 5:20 am

Is the message class for that transaction up?

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Yes Sandy.. The Message Class is also UP.

It looks like, once the BMP job gets complete, it STOP s the Transaction as well.

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13

Hi Sandy,

To provide more info:

This was the error msg that was available in IMS log.
VIC914 is the transaction. and T040A02B is the BMP job.

aishwarya_20 · New User Joined: 19 Nov 2008 Posts: 57 Location: pune

Hi Anand,

Yes, one BMP program can invoke MPP program.

I saw your requirement. Why don't you use PURGE call instead of INSERT call after Change call. I guess it will work.

Make sure that before Purge call you are moving length of mesage to LL part and in the call you are passing TP-PCB-MASK , Alternate-mod name.

Please show me your both calls .

naveengec · New User Joined: 24 Mar 2007 Posts: 35 Location: pune

Anand Syril · New User Joined: 28 Dec 2005 Posts: 13