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Ananya

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Joined: 26 Feb 2004
Posts: 19
Location: Chennai

PostPosted: Thu Feb 26, 2004 1:55 pm
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Dear All,
Lets say few hundred users are logged in to a CICS Region (only 1 CICS region). Now my question is, What if anyone of the users execution goes in to a Indefinite loop.... Should I RESTART the CICS session once again????
Also if the restart of CICS Session is done,would other USERS (who logged in to the same CICS Region) execution be terminated? or would they be left UNAFFECTED???

PLS. I'M IN A TOTAL CONFUSION. KINDLY HELP ME TO GET A CLEAR PICTURE.

I WOULD APRECIATE ANY REPLIES. THANKS IN ADVANCE. icon_biggrin.gif
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mcmillan

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Joined: 18 May 2003
Posts: 1207
Location: India

PostPosted: Thu Feb 26, 2004 5:03 pm
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Dear Ananya,

Quote:
What if anyone of the users execution goes in to a Indefinite loop.... Should I RESTART the CICS session once again????


Yes, you can restart your CICS session.. But you will see your infinite program again.


So before restarting your CICS region, you should purge your infinite transaction. For that Log on to another CICS region and execute Master transaction (CEMT). From there, choose your transaction and disable it.

Quote:

Also if the restart of CICS Session is done,would other USERS (who logged in to the same CICS Region) execution be terminated? or would they be left UNAFFECTED???


Other users execution will not be terminated... They are not affected.

Hope, this will solve you...
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Ananya

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Joined: 26 Feb 2004
Posts: 19
Location: Chennai

PostPosted: Fri Feb 27, 2004 9:06 am
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Hi Thanks for the reply, it wasn't convincing though.

I'm still not clear. If USER1 execution goes in to an Indefinite loop, why sould the other USERS suffer for it.

pls. I badly need this solution.

Thanks in advance.

Cheers
-Ananya
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mcmillan

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Joined: 18 May 2003
Posts: 1207
Location: India

PostPosted: Fri Feb 27, 2004 9:47 am
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Dear,

Not only in Mainframes, Running an infinite loop program will affect all multiprocessing environments.

When comparing to PC, our problem is negotiable. But surely, it affects the execution speed of other processes depending on your system performance.
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Ananya

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Joined: 26 Feb 2004
Posts: 19
Location: Chennai

PostPosted: Fri Feb 27, 2004 1:25 pm
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Thanks Sir,
Thanks for the note. I think i now understood the process. I will keep in touch with you for any further clarifications.


Great Day SIR!!!

Cheers
-Ananya
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harikrishnanrajeev

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Joined: 28 Jan 2004
Posts: 37
Location: Trivandrum

PostPosted: Sun Mar 07, 2004 10:04 pm
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Hi,

I also got into a same situation as Ananya...ie i got an infinite loop. Then i used CEMT as Mr.mcmillan has suggested. There i disabled the transaction and discarded it. This was done after entering a seperate CICS region.

I believe since CICS is existing as a seperate subsystem in the mainframe all the users will be using the same resources and hence an infinite loop caused by a single user can affect the entire region.

Any corrections are welcome.

Thanks and regards,

Hari.
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