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damuonmail
New User
Joined: 07 Mar 2005
Posts: 12
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Hi All,
Incase of IMS database contention, how to see which job is holding the IMS database. What is the procedure for solving this? |
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Devzee
Active Member
Joined: 20 Jan 2007
Posts: 684
Location: Hollywood
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Are you referring Update or Inquiry Jobs.
Most of the time if there is any contention of the DB dataset then the DB will be displayed in Job log with messag like which job it's waiting and reason ..etc.
The contention can happen with design flaws or batch jobs overlapping. Just make sure the timing of batch jobs doesnt overlap. |
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rajatbagga
Active User
Joined: 11 Mar 2007
Posts: 199
Location: india
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In your IMS region issue the following command:
/DIS REG A
This is provide you with the information your require.
After getting this information you can do the take nessesary actions to release the database. |
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girias
New User
Joined: 09 Feb 2007
Posts: 26
Location: Chennai
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Hi,
I am not getting what do mean by IMS region. I also have a similar issue. Pls tell me whr should I isue this command. |
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Devzee
Active Member
Joined: 20 Jan 2007
Posts: 684
Location: Hollywood
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IMS Region - IMS DC
If you are working in IMS DB/DC then Im sure you have IMS online screens. Where do you see your IMS DC Screens? |
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Bitneuker
CICS Moderator
Joined: 07 Nov 2005
Posts: 1104
Location: The Netherlands at Hole 19
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| girias wrote: |
Hi,
I am not getting what do mean by IMS region. I also have a similar issue. Pls tell me whr should I isue this command. |
If you don't know what an IMS region is I'm afraid you also won't be able to issue the dis reg command. Any system operator around to help you out? BTW, is this one related to your ITEM-problem in another topic? If so please combine them so we all understand the complete problem  |
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girias
New User
Joined: 09 Feb 2007
Posts: 26
Location: Chennai
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George,
Thanks for ur reply on both the topic.
Both are different issues. Actually we dont have access to IMS Online Screens in our system. We have access only to IMS File-aid to browse.
The thing is, the job is getting abended with Abend code of U850 (IMS Contention). So, I need to analyse with which resource/Job is it getting contented with. Is there any other method to find that.
Please advise. Thanks for all Ur replies in advance. |
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rahulkolhe2003
New User
Joined: 06 Mar 2007
Posts: 12
Location: columbus
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| Do you know the IMS control region job name running on system? That could help you to find out the resources holding the IMS database. :?: |
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Bitneuker
CICS Moderator
Joined: 07 Nov 2005
Posts: 1104
Location: The Netherlands at Hole 19
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| Since an IMS database is plain VSAM you could try to find out using TSO if you know the DSNAME. |
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