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Status Not under consideration
Created by Guest
Created on Aug 8, 2024

Prevent aborted DB2 threads on MQ Plan CSQ5R930

MQ submits SQL requests up to every 5 seconds. DB2 DBRMs CSQ5L221 and

CSQ5S221 are referenced.

There is no data for them to retrieve, resulting in the SQLCODE 100

being returned. Because it receives no data MQ issues a rollback

resulting in thread aborts. There is the overhead of DB2

abort/rollbacks being issued every 5 seconds.

.

The suggestion was for MQ to check for return code 0 or 100 to

commit.


Please refer to IBM PMR case TS016662082

Idea priority Medium
  • Admin
    Matthew Leming
    Reply
    |
    Nov 15, 2024

    From an MQ perspective this is working as designed. We haven't been able to identify any noticeable performance impact from this behaviour which has been part of the MQ design since queue sharing group support was added many years ago.