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DB2 - Problembeschreibung

Problem IC75027 Status: Geschlossen

MEMORY LEAK IN APPLICATION HEAP WHEN SUPPORT FOR EXTENDED INDICATORS
FEATURE IS ENABLED

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
When support for extended indicators feature is enabled, 
you may find memory leak in application heap. 
 
Extended indicators support is a new feature from 
V9.7 Fix Pack 2 and is by default enabled in JDBC driver. 
 
 
You can monitor growing memory usage in application 
heap by running "db2pd -db DBNAME -memb appctl". 
 
The output(snippet) is shown below as an example. 
 
Memory blocks sorted by size for apph pool: 
PoolID     PoolName   TotalSize(Bytes)     TotalCount LOC   File 
1          apph       11284444             245314     3982 
1315556668 
 
 
The application may eventually receive  error SQL0954C. 
You may also find "Out of memory failure for Application 
 Heap (APPLHEAPSZ)" error and SQLO_NOMEM_APPH in db2diag.log.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Problem Description above                                * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 9.7 Fix Pack 5                        * 
****************************************************************
Local-Fix:
You can disable Extended Indicators support by 
specifying accordingly in the connection properties. 
 
The following is an example: 
 
String url = "jdbc:default:connection"; 
Properties prop = new Properties(); 
prop.put("enableExtendedIndicators", "2"); // public final 
static int NO = 2 
 
    try { 
      con = DriverManager.getConnection(url, prop);
verfügbare FixPacks:
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

Lösung
First fixed in DB2 Version 9.7 Fix Pack 5
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
14.03.2011
12.12.2011
12.12.2011
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP5
Problem behoben lt. FixList in der Version
9.7.0.5 FixList