DB2 FOR LUW / DB2FORLUW / A10 - DB2

When AUTHENTICATION on the database server is set to 
DATA_ENCRYPT, any data transferred between the server and the 
client is encrypted. 
 
It was found that, with DATA_ENCRYPT DB2 LUW client sometimes 
fails to parse the query result, and returns SQL0902C. 
 
The size of the communication buffer is controlled by ASLHEAPSZ 
for local clients. 
For remote client at least a 128K buffer is allocated. 
The issue can be hit by both local and remote client. 
 
Here's the error message that will appear in db2diag.log. 
 
==== 
 
2013-03-06-11.29.11.620518+060 I174864A1392       LEVEL: Severe 
PID     : 52232198             TID  : 1           PROC : db2bp 
INSTANCE: db2inst1             NODE : 000 
APPID   : *N0.db2inst1.130306102052 
EDUID   : 1 
FUNCTION: DB2 UDB, DRDA Application Requester, 
sqljrPostErrorProcessin probe:911 
 
MESSAGE : ZRC=0x87360009=-2026504183=SQLJC_ERROR_BEOF "DATA DOES 
NOT EXIST" 
          DIA8506C Unexpected end of file was reached. 
 
CALLSTCK: (Static functions may not be resolved correctly, as 
they are resolved to the nearest symbol) 
 
  [0] pdLog 
  [1] sqljrPostErrorProcessing 
  [2] sqljrPostErrorProcessing 
  [3] sqljrDrdaArFetch 
  [4] csmDriveFetch 
  [5] csmDriveFetch 
  [6] csmGetCursorBuf 
  [7] clientboWriteStringNoConv 
  [8] clientboDDFMode1Conversions 
  [9] clientboDDFMode1Conversions 
 
==== 
 
The LUW client in question can be CLP, CLI/ODBC or legacy JDBC 
(using CLI under the covers). JCC type 4 driver does not have 
this problem. 
 
The data in the server is never corrupted. The problem is only 
on the client that fails to parse the encrypted data. Any 
fix pack containing the fix for this problem must be applied to 
clients.

**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.1 and Fix Pack 3                   * 
****************************************************************

Local fix: 
If this problem occurs for a local connection, change the value 
of ASLHEAPSZ to any other value eg 8. 
 
For remote client, try changing FetchBufferSize greater than 
128K. 
 
Also note that this problem is only applicable to DATA_ENCRYPT. 
One may choose to change AUTHENTICATION on the server side to 
some other value to work around it.

DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
 

Problem was first fixed in DB2 Version 10.1 and Fix Pack 3

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

22.04.2013
21.10.2013
21.10.2013