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DB2 - Problem description

Problem IC71249 Status: Closed

MEMORY LEAK IF DAS SERVER IS NOT RUNNING BUT THERE IS A NOTIFICATION LIST

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
This issue was found on DB2 9.5 FP4 on Linux AMD 64 bit. 
The leak depends on the type of communication used between 
db2acd process and the DAS server. 
The db2acd process is attempting to create a named pipe for 
communication purposes with the DAS server. 
The memory allocation is not cleaned up properly which leads to 
this memory leak. 
The leak is about 1Mb per day. 
 
The trace information below illustrates that the DAS component 
DasCommFactory__getCommInterface 
exits with the error -7051. 
. 
4704  | | | | | | | | | | getDASInstallInfo exit [rc = 
0x00001134 =4404] 
4705  | | | | | | | | | buildDasPaths error [probe 60] 
4706  | | | | | | | | | buildDasPaths exit [rc = 0xFFFFE475 = 
-7051] 
4707  | | | | | | | | getDasTmpPath exit [rc = 0xFFFFE475 
=-7051] 
4708  | | | | | | | getDasLocalCommIdStr error [probe 25] 
4709  | | | | | | | getDasLocalCommIdStr exit [rc = 0xFFFFE475= 
-7051] 
4710  | | | | | | DasCommFactory__createNamedPipeAdapter exit 
[rc = 0xFFFFE475 = -7051] 
4711  | | | | | DasCommFactory__getCommInterface error [probe 
75] 
4712  | | | | | | mapDasRcToSqlca entry 
4713  | | | | | | mapDasRcToSqlca data [probe 10] 
4714  | | | | | | mapDasRcToSqlca data [probe 20] 
4715  | | | | | | mapDasRcToSqlca exit 
4716  | | | | | DasCommFactory__getCommInterface exit [rc = 
0xFFFFE475 = -7051] 
. 
 
.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* MEMORY LEAK IF DAS SERVER IS NOT RUNNING BUT THERE IS A      * 
* NOTIFICATION LIST                                            * 
*                                                              * 
* This issue was found on DB2 9.5 FP4 on Linux AMD 64 bit.     * 
*                                                              * 
* The leak depends on the type of communication used between   * 
*                                                              * 
* db2acd process and the DAS server.                           * 
*                                                              * 
* The db2acd process is attempting to create a named pipe for  * 
*                                                              * 
* communication purposes with the DAS server.                  * 
*                                                              * 
* The memory allocation is not cleaned up properly which leads * 
* to this memory leak.                                         * 
*                                                              * 
* The leak is about 1Mb per day.                               * 
*                                                              * 
* The trace information below illustrates that the DAS         * 
* component                                                    * 
* DasCommFactory__getCommInterface                             * 
*                                                              * 
* exits with the error -7051.                                  * 
*                                                              * 
* .                                                            * 
*                                                              * 
* 4704  | | | | | | | | | | getDASInstallInfo exit [rc =       * 
*                                                              * 
* 0x00001134 =4404]                                            * 
*                                                              * 
* 4705  | | | | | | | | | buildDasPaths error [probe 60]       * 
*                                                              * 
* 4706  | | | | | | | | | buildDasPaths exit [rc = 0xFFFFE475  * 
* =                                                            * 
* -7051]                                                       * 
*                                                              * 
* 4707  | | | | | | | | getDasTmpPath exit [rc = 0xFFFFE475    * 
*                                                              * 
* =-7051]                                                      * 
*                                                              * 
* 4708  | | | | | | | getDasLocalCommIdStr error [probe 25]    * 
*                                                              * 
* 4709  | | | | | | | getDasLocalCommIdStr exit [rc =          * 
* 0xFFFFE475=                                                  * 
* -7051]                                                       * 
*                                                              * 
* 4710  | | | | | | DasCommFactory__createNamedPipeAdapter     * 
* exit                                                         * 
* [rc = 0xFFFFE475 = -7051]                                    * 
*                                                              * 
* 4711  | | | | | DasCommFactory__getCommInterface error       * 
* [probe                                                       * 
* 75]                                                          * 
*                                                              * 
* 4712  | | | | | | mapDasRcToSqlca entry                      * 
*                                                              * 
* 4713  | | | | | | mapDasRcToSqlca data [probe 10]            * 
*                                                              * 
* 4714  | | | | | | mapDasRcToSqlca data [probe 20]            * 
*                                                              * 
* 4715  | | | | | | mapDasRcToSqlca exit                       * 
*                                                              * 
* 4716  | | | | | DasCommFactory__getCommInterface exit [rc =  * 
*                                                              * 
* 0xFFFFE475 = -7051]                                          * 
*                                                              * 
* .                                                            * 
*                                                              * 
*                                                              * 
*                                                              * 
* .                                                            * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to fix pack 4 or later.                              * 
****************************************************************
Local Fix:
available fix packs:
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
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
First fixed in v9.7 fp4
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
16.09.2010
19.05.2011
19.05.2011
Problem solved at the following versions (IBM BugInfos)
9.7.FP4
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.4 FixList