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DB2 - Problem description

Problem IC85503 Status: Closed

ACCESSING DB2/Z OS WITH CLI MAY ENCOUNTER -904 ERROR

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
DB2 client has a chance to use QRYBLKSZ basing on ASLHEAPSZ(max 
here is 10MB) when accessing DB2 z/OS  with CLI. However, DB2 
for z/OS has a limitation of supporting the QRYBLKSZ up to 10MB, 
256K is currently the max supported, if the max size is 
exceeded, SQLCODE -904 or -246 will be generated. 
 
The issue can be reproduced with a Federation case: 
 
1. Create DRDA wrapper 
2. Create a server pointing to a DB2/z OS databse, set server 
option DB2_TWO_PHASE_COMMIT to 'Y' 
3. Create an user mapping 
4. Create a nickname pointing to a table on DB2/z OS 
 
The last steps will end up with following error: 
 
DB21034E  The command was processed as an SQL statement because 
it was not a valid Command Line Processor command.  During SQL 
processing it returned: 
SQL1415N  The statement was compiled for diagnostic purposes 
only and has not been executed. 
 
The fix will limit the QRYBLKSZ up to 256K on the client.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* The users are accessing DB2 z/OS via DRDA nickname with      * 
* DB2_TWO_PHASE_COMMIT = 'Y'.                                  * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Server v97fp7 or later.                       * 
****************************************************************
Local Fix:
Reduce DBM CFG ASLHEAPSZ to a value less than 2560.
available fix packs:
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
The problem is first fixed at v97fp7.
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
25.07.2012
24.10.2012
24.10.2012
Problem solved at the following versions (IBM BugInfos)
9.7.FP7
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.7 FixList
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