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Status Under review
Workspace Db2 for z/OS
Created by Guest
Created on Aug 15, 2022

Rotate an archive-enabled PBR tablespace without causing a deadlock

When we try to rotate partitions of an archive-enabled PBR tablespace, Db2 requires us to disable archiving before the rotate then re-enable archiving after the rotate. However, when we re-enable archiving we cause a deadlock with CICS and the online transaction fails. In order to prevent the deadlock we have stopped rotating partitions and are just adding a new partition at the end of each month and emptying out the oldest one. Since we cannot drop the old partition we will end up with many empty datasets from the partitions that we should have been able to rotate out. Possible solutions are: 1) allow us to rotate partitions without having to disable archiving, 2) Allow us to drop the old partition after adding a new one, 3) Allow us to force the CICS transaction to survive the deadlock resolution (least desirable option because we still have the problem, we've just created a workaround).

Needed By Quarter