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More precise Accounting and SQLACTIVITY Reports with separate SYNC operation

Complex CICS/IMS transactions (involving multiple programs with an implicit Commit at the end) are incorrrectly presented on the Omegamon Accounting Report as well as on SQLActivity Report. By design the costs of the tough SYNC operation (two phase commit) are added to the last invoked Db2 package and it's SQLs. That leads to incorrect reports, forcing DBAdmins to concern about SQLs that are actually have no problems.
For example take the famous INSERT performance issue (usually executed as the last for a business transaction). Companies spend millions to improve an INSERT although there is no INSERT problem but the costs of the Two-Phase Commit.

There were two cases closed to establish that behaviour: TS002976436 and TS002533198.

  • Avatar32.5fb70cce7410889e661286fd7f1897de Guest
  • Apr 15 2020
  • Future consideration
Who would benefit from this IDEA? Companies using CICS/IMS environment concerning about their performance (especially INSERT performance)
How should it work?

As far as the last invoked program has no COMMIT statement it couldn't be charged by the implicit Commit. That creates a mess. An implicit Commit should be presented as a separate operation on the higher report levels (CORRNAME/PLAN/CONNECT/etc.).

It presented correctly in the SQLACTIVITY TRACE as the separate SYNC operation and should remain separated in the other reports.

Idea Priority Urgent
Priority Justification Too many Companies are fooled by incorrect reports
Customer Name PKO Bank Polski
  • Attach files
  • Admin
    May Chu commented
    19 Jun 04:28pm

    Still under review - changed status to "Future Consideration"

    From prior discussions, this Idea could be changed/sent to Db2 requesting that Db2 take out / separate the SYNC processing time from the application packages and report it in a separate dummy package. From discussions with Db2, we understand this would likely be declined. We understand that Db2 would likely support implementing the COMMIT “START/END” for DRDA trans then OMPE would have subsequently to implement his SQL Act.Trace/Report with calculating and reporting the COMMIT processing times. This would be standard ‘currency support’ for OMEGAMON

  • Admin
    May Chu commented
    14 May 10:48pm

    We’ve been in discussion with the client and are considering opening a requirement to Db2

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