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Status Not under consideration
Workspace Db2 for z/OS
Created by Guest
Created on Jan 28, 2025

RELATED IDEAS

Allow application to decide what to do when a timeout occurs (-911 vs. -913)

See this idea on ideas.ibm.com

In time-critical processes, it can be important to be able to react to timeout conditions in Db2. In Db2 V13, there is new functionality that allows an application to override the default timeout setting (the CURRENT LOCK TIMEOUT special register) which is a great improvement.

One thing is missing however: When an application is connected to Db2 via the TSO or CAF attachments, it is not currently possible for an application to decide whether or not to handle a timeout condition. These attachments always return SQLCODE -911 to the application, indicating that a rollback has been done. Under RRSAF attachment, however (or any other attachment that allows two-phase commit), the application receives a -913 which allows it to decide how to proceed; that is, it could try and repeat the operation, or it could give up and perform a rollback on its own.

Now, the idea is to introduce a new global variable or special register that would allow the application to override that default behavior. If that variable has not been set or is set to the default, the application would receive a -911 when a timeout occurs under TSO or CAF, and the UOW is rolled back. If it has been set accordingly, the application receives a -913 as it would under RRSAF, and the UOW is not rolled back.

Needed By Quarter
  • Admin
    Janet Figone
    Reply
    |     Mar 5, 2025

    Dear Ulrich,

    Thank you for submitting this Db2 for z/OS enhancement request. We have reviewed this request and believe it is a good candidate for the Db2 for z/OS product. However, it does not align within functionality prioritized for delivery within the next 12 months. Therefore, unfortunately, we will not be considering this idea at this time.

    We do plan to revisit this idea in the near future.

    We appreciate your input to the Db2 for z/OS development team. We hope that you will continue to submit enhancement suggestions for improvements as customer feedback is a key component to shaping the future direction of Db2 for z/OS.

    Sincerely,

    Db2 for z/OS Team

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