Portal | Manuals | References | Downloads | Info | Programs | JCLs | Mainframe wiki | Quick Ref
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Profile Log in to check your private messages Log in
 
IMS checkpoint issue/honor

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> IMS DB/DC
View previous topic :: :: View next topic  
Author Message
Banuchandar

New User


Joined: 02 Jun 2010
Posts: 4
Location: Chennai

PostPosted: Mon Feb 21, 2011 9:44 pm    Post subject: IMS checkpoint issue/honor
Reply with quote

Hi All,

An application program which is accessing both IMS and DB2 is taking checkpoints for each record processing. Though the checkpoint call successful it s internally skipped by IMS and very few calls are honored. It s because the time frequency has been set within my data center.

Clarification required:
Many of the IMS checkpoint calls are skipped as the record process time within time frequency which has been set. If i control the checkpoint call from the application program to be issued only after certain number of records processed would i improve the process time and cost?

Besides, the checkpoint call is logically releasing the locks it seems (Somewhere i have read). Wouldn't be problem if i use this frequency checkpointing?

Regards,
B_G
Back to top
View user's profile Send private message

Sandy Zimmer

Active Member


Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE

PostPosted: Mon Feb 21, 2011 10:10 pm    Post subject:
Reply with quote

There was an intensive discussion about this a couple of years ago. Did you search the forum?
Back to top
View user's profile Send private message
Banuchandar

New User


Joined: 02 Jun 2010
Posts: 4
Location: Chennai

PostPosted: Tue Feb 22, 2011 5:02 pm    Post subject:
Reply with quote

Hi Sandy,

I could not find the exact thread you are trying to point icon_sad.gif But anyway, thanks for your updates.

Regards,
B_G
Back to top
View user's profile Send private message
Sandy Zimmer

Active Member


Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE

PostPosted: Tue Feb 22, 2011 11:48 pm    Post subject:
Reply with quote

Try this - much knowledge and especially check out Anuj's post with all of the links to prior discussions.

http://ibmmainframes.com/viewtopic.php?t=37301&highlight=checkpoint+restart+timing
Back to top
View user's profile Send private message
Sandy Zimmer

Active Member


Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE

PostPosted: Wed Feb 23, 2011 4:53 am    Post subject:
Reply with quote

One more thing.......think about WHEN you are running this job. And, you will find discussions in the links. If your databases are small and the job runs very quickly, consider just using backup/restore procedures. You didn't share the size of your database and when your job runs? Checkpoint/restart and frequency is only viable depending on your environment.
Back to top
View user's profile Send private message
Anuj Dhawan

Senior Member


Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Wed Mar 02, 2011 2:28 pm    Post subject:
Reply with quote

This is also a good point to start with: Click.
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> IMS DB/DC All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts JES2 doesn't honor the priority of th... Aron Lendvai JCL & VSAM 8 Thu Jun 29, 2017 1:41 pm
No new posts Issue with NDM process to transmit ES... chetanambi All Other Mainframe Topics 6 Wed May 03, 2017 10:52 am
No new posts Execessive parameter issue Sumeendar JCL & VSAM 5 Mon Dec 19, 2016 4:35 pm
No new posts DFHRESPONSE returns issue divated CICS 3 Wed Nov 02, 2016 6:32 pm
No new posts Can sending 5 MB data between cobol p... Kevin Vaz CICS 12 Tue Oct 18, 2016 4:50 pm

Facebook
Back to Top
 
Job Vacancies | Forum Rules | Bookmarks | Subscriptions | FAQ | Polls | Contact Us