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Preventing manual Stop/Start of a workfile after space issue
We had a space allocation failure in DSNDB07. After the storage failure has been relieved one of our batch job was crashing with reason 00D70011 as the DSNDB07 extend was flagged by DB2 WACTPUNAV bit as not usable. We finally had to manually St...
issue DISPLAY BLOCKERS instead of DISPLAY CLAIMERS when DRAIN timeout
Currently when DRAIN fails during REORG, a DISPLAY CLAIMERS is issued. The draw back is there is no "age" information, so user does not know which thread is the blocker, because the claimer could also be waiter.
Some ddl Changes are in table SYSPENDINGDDLSome ddl Changes are not there: for example alter table add column can only be see via -dis db() sp() advIt would be better to have the same bahavior for all ddl changes with AREO* Status.Maybe it could b...
Message DSNX241I will not appear after -SET SYSPARM if ENCRYPTION_KEYLABEL did not change
We are running DB2 12 FL 509 and zparm parameter ENCRYPTION_KEYLABEL does not have a value (is null or blank).Even having ENCRYPTION_KEYLABEL set to null, every time I issue a -SET SYSPARM command to reload the same zparm module (after altering ot...
Global Variables: A global variable can be created with a default value. Each session that uses it will then instantiate a version of that global variable, with the default value and any change in the value is limited in scope to its unit-of-work....
In our environment, we have many queries with predicate: "expression op expression".As they don't use indexes they're performing a table scan.We would like DB2 to be able to use indexes to resolve this type of predicate.Examples:SELECT [id], [star...
Db2 z/OS real storage management (Case TS006310627)
After the observation of a significantly increase of the CPU consumption in our Db2-MSTR regions, we opened case TS006310627 at IBM since the reason was not evident. The result of the analysis with IBM showed up that probably APAR PH31684 caused t...
Db2 z/OS limitations with ALTER TABLESPACE MOVE TABLE
I love the upcoming FL508 and this new availability even though I have not used it. Looking deeper into the Knowledge Center there seems to be some limitations that I would like to see resolved.
The two items are:
a) Exist in the same database...
Our company uses DB2 zOS almost exclusively for dynamic SQL workloads. Our management expects that DB2 zOS also has high availability regarding DDL changes in this application szenario. If you intend to perform DDL changes in this environment duri...
Create INDEX and SKPT lock. DDL and continuous availability.
Working in a banking 24x7 environment without any maintenance window our concurrency issues with DDL changes are increasing more and more everyday as our workload increases.There are some concurrency problems that we think it should value the effo...
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