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sakreg · Beginner Joined: 28 Feb 2005 Posts: 80 Topics: 26

Hi Everyone,

Is there a way to invoke a JCL, that will submit a Job based on the Presence of a Sequential File using REXX.

Files are being FTP'ed to the mainframe server periodically. Once they hit the Server, I need to trigger the JCL. I am not interested in achieving this using any Job Schedulers. Just scratching my head if there is some way to do this using REXX or CLIST.

Please share your thoughts on how this can be achieved.

Thanks for your time.

semigeezer · Posted: Tue Sep 06, 2005 9:50 pm Post subject:

Not sure what you mean by 'invoke a jcl', but SYSDSN() or LISTDSI() will tell you if a file exists from Rexx. Just don't submit a long running job that sits in a loop and checks occasionally. That is a major wast of resource, specifically initiators, and is a task better suited to a started task, or if that is out of the qustion, a PC that submits occasional jobs to check.

kolusu · Posted: Wed Sep 07, 2005 5:52 am Post subject:

sakreg,

Why not FTP the JCL that needs to run specifying "filetype=jes", which will go to the internal reader and willl be submitted on the mainframe.You can FTP the JCL after FTPing the dataset. check these links

http://www.mvsforums.com/helpboards/viewtopic.php?t=931&highlight=filetype

http://www.mvsforums.com/helpboards/viewtopic.php?t=2358&highlight=filetype

Hope this helps...

Cheers

Kolusu
_________________
Kolusu
www.linkedin.com/in/kolusu

Phantom · Posted: Wed Sep 07, 2005 6:55 am Post subject:

Kolusu,

I believe that there is no relation b/w the mainframe dataset and sakreg's jobs. meaning, the datasets might be incoming files for prod/test region but he wants to do something using his jcl once he receives the datasets. Thatz why he said he does not want any Scheduler to do the task.

Instead of monitoring the incoming dataset manually, he is trying to have some tool do the task.

Sakreg,
Let me know if my assumption is wrong.

thanks,
Phantom

Manas Biswal · Posted: Wed Sep 07, 2005 9:20 am Post subject:

kolusu · Posted: Wed Sep 07, 2005 9:32 am Post subject:

Phantom,

I think we both are on the right path of assuming that sakreg is receiving files on the mainframe from an external source.

My suggestion is to FTP the JCL to be run upon the creation of the dataset immediately after FTP'ing the dataset.

The seq would be:

1. FTP the txt file mainframe and save as hlq.mlq.tlq

2. FTP the JCL using filetype=jes which will actually use the dataset created in step1.

Step2 essentially does the same thing as invoking the Job upon creation of the dataset which is what sakreg wanted.

Hope this helps...

Kolusu
_________________
Kolusu
www.linkedin.com/in/kolusu

semigeezer · Posted: Wed Sep 07, 2005 9:59 pm Post subject:

That assumes that the sender is willing to submit the job too which is unlikely. Though sakreg isn't interested in using a job scheduler, what he intends to write is ... a job scheduler. In any event, I'd take the middle ground. Just submit a job from the PC that does the check for the data set in 1 step and if it exists, does whatever work is needed in the next step (or better yet, all in 1 step).

sakreg · Beginner Joined: 28 Feb 2005 Posts: 80 Topics: 26

Both (kolusu and phantom) are right.

I have a Visual Basic Screen which prepares and FTPS's the input file alone.The JCL will reside in the mainframe. This JCL would kick off a COBOL pgm with the File that had been received and then process it.

As of now, we have to monior the presence of the sequential file and then ask the operator to start the job! The design does not allow to define the FTP control card locally and then use it for FTP'ing for some security reasons.

As poinetd out by phantom, I am thinking if a kind of tool using REXX will be a help to monitor the presence of input file and if present, kick off the JCL in the mainframe. Any thoughts around this. I am a absolute beginner for REXX.
But since it is a kind of scripting language, I thought it might be possible.

Thanks.

Phantom · Posted: Thu Sep 08, 2005 3:14 am Post subject:

sakreg,

sakreg · Beginner Joined: 28 Feb 2005 Posts: 80 Topics: 26

Thanks to everyone, who contributed their thoughts.

I would have to try these. Is there a need to mention the Transfer Type like Ascii or Binary or by default it would be Ascii

Phantom · Posted: Fri Sep 09, 2005 12:21 pm Post subject:

Sakreg,

sakreg · Beginner Joined: 28 Feb 2005 Posts: 80 Topics: 26

superk · Advanced Joined: 19 Dec 2002 Posts: 684 Topics: 5

Does the job in 'asdfgh.cn.cntl(altseq)' start with the same six characters used for the userid? As an example, the job in 'asdfgh.cn.cntl(altseq)' should have a JOB card similar to this:

//ASDFGH1 JOB (.....),CLASS=,MSGLCASS=

Phantom · Posted: Mon Sep 12, 2005 8:19 am Post subject:

Sakreg,

Check the status of JOB02148. The job has already been submitted. Check in SPOOL if it ended in error.

Thanks,
Phantom

sakreg · Beginner Joined: 28 Feb 2005 Posts: 80 Topics: 26

I am not able to edit my previous post,

Any thoughts on why I am seeing this