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DB2 - Problembeschreibung

Problem IC89855 Status: Geschlossen

DB2 MAY ABEND WHEN USING DB2 TEXT EXTENDERS

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
A rare timing condition involving loading/unloading of the DB2 
client library when using DB2 text extenders may cause a DB2 
instance to shutdown abnormally (trap).   The trap symptoms may 
vary and are similar to memory corruption.  Examples: 
 
_getpwnam_shadow_r 
_posix_getpwnam_shadow_r 
osshomepath.getpwnam_r 
ossBuildHomeDirectoryRelativePath 
GlobalReg.GetGlobalRegPathnameInternal 
GlobalReg::init 
GlobalReg::GlobalReg 
ossOpenInstanceList 
EnvRegRefresh 
EnvRegOpen 
sqloPRegQueryDefaultValue 
EnvGetDB2SysVar 
EnvQueryDB2SystemVariables 
sqloInitEnvironment 
.sqloAppLibInit 
mod_init1 
usl_init_mods 
uload 
load1 
load 
loadAndInit 
dlopen 
sqloAIXLoadModuleTryShr 
sqloLoadModule 
sqlerLibraryLoad 
.sqlerRoutineLoad 
.sqlriOneTimeInitRtn1Trusted 
sqlriOneTimeInitRtn 
... 
 
sqleAddToFreeCtxList 
sqleFreeTrustedCtxInternal 
sqleUCtrustedRtnTerm 
sqlerLibraryTrueUnload 
sqlerLibraryUnloadAll 
sqlri_close_udf_eog 
sqlrr_appl_term 
...
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* Systems using DB2 text extenders                             * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 9.7 Fix Pack 9                        * 
****************************************************************
Local-Fix:
A workaround is to invoke a trusted routine over a persistent 
connection.  This will keep the client library loaded in the db2 
server process, thus avoiding the timing condition. 
db2 connect to <database> 
db2 "values dayofyear(current timestamp)" 
< leave this connection open continuously >
verfügbare FixPacks:
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
Problem first fixed in DB2 Version 9.7 Fix Pack 9
Workaround
See Local Fix
Bug-Verfolgung
Vorgänger  : APAR is sysrouted TO one or more of the following: IC89859 
Nachfolger : 
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
25.01.2013
18.12.2013
18.12.2013
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP9
Problem behoben lt. FixList in der Version
9.7.0.9 FixList
9.7.0.9 FixList