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Status Delivered
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on Sep 8, 2016

Enhancements to QDBSRV jobs

When the QDBSRV jobs are hours behind (have a large amount of requests to process) a rename of a library can take hours because a flush request is done to make sure all work for the QDBSRV jobs and IASP QDBSRV jobs are complete. Refer to PMR 20228,L6Q,000/CPS ACFLNP.


Use Case:

When there is a lot of workload on the system, it seems that a simple request like renaming a file or library takes a long time to do. We use rename library/file as part of our daily processing as we rename hundreds of libraries/files a day as part of our "daily file processing" as new data is being delivered into the system.


Idea priority Medium
  • Guest
    Reply
    |
    Nov 25, 2020

    IBM does not plan to modify the cross reference server processing, but has delivered a function to make it possible to better manage the work being performed by the server jobs.

    Part of modifying a *FILE object requires updating the information in the database cross reference tables. If the cross reference server jobs are behind on their processing there is a delay in performing the request. This processing cannot be avoided.

    Consider using the QSYS2.ANALYZE_CATALOG table function to monitor how the database cross reference files are keeping up with requests. Use the statistic of how many entries are in the queue to be processed to decide when to issue the next RENAME operation as a way to minimize the wait time. This option was added to the ANALYZE_CATALOG function in fall 2020 with IBM i 7.4 PTF Group level 10 and IBM i 7.3 PTF Group level 22.

  • Guest
    Reply
    |
    Sep 9, 2016

    Creating a new RFE based on Community RFE #94327 in product IBM i.