home clear 64x64
en blue 200x116 de orange 200x116 info letter User
suche 36x36
Neueste VersionenFixList
11.1.0.7 FixList
10.5.0.9 FixList
10.1.0.6 FixList
9.8.0.5 FixList
9.7.0.11 FixList
9.5.0.10 FixList
9.1.0.12 FixList
Haben Sie Probleme? - Kontaktieren Sie uns.
Kostenlos registrieren anmeldung-x26
Kontaktformular kontakt-x26

DB2 - Problembeschreibung

Problem IC80070 Status: Geschlossen

MEMORY LEAK HAPPENS ON HADR PRIMARY WHEN HADR IS IN REMOTE CATCHUP STATE

Produkt:
DB2 FOR LUW / DB2FORLUW / 950 - DB2
Problembeschreibung:
When HADR primary is in remote catchup state, 64 bytes memory 
leak happens each time when db2lfr opens a log file to send to 
standby. This could be very serious for HADR with superasync 
mode, because HADR is always in remote catchup state with 
superasync mode. When hitting this problem, dbheap can increase 
very quickly. For example, from output of "db2pd -memb sort 2", 
we can see many blocks as follows are left there and increase 
quickly. 
 
Memory blocks sorted by size for dbh pool: 
PoolID    PoolName  TotalSize(Bytes)    TotalCount    LOC  File 
2          dbh        131703424            2057866    230 
1727183880
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* HADR                                                         * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* When HADR primary is in remote catchup state, 64 bytes       * 
* memory leak happens each time when db2lfr opens a log file   * 
* to send to standby. This could be very serious for HADR with * 
* superasync mode, because HADR is always in remote catchup    * 
* state with superasync mode. When hitting this problem,       * 
* dbheap can increase very quickly. For example, from output   * 
* of "db2pd -memb sort 2", we can see many blocks as follows   * 
* are left there and increase quickly.                         * 
*                                                              * 
* Memory blocks sorted by size for dbh pool:                   * 
* PoolID    PoolName  TotalSize(Bytes)    TotalCount    LOC    * 
* File                                                         * 
* 2          dbh        131703424            2057866    230    * 
* 1727183880                                                   * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Update to version 9.5 fixpack 9 or later fixpacks.           * 
****************************************************************
Local-Fix:
Use other HADR synchronous modes, eg. ASYNC or NEARSYNC.
verfügbare FixPacks:
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
This problem is first fixed in version 9.5 fixpack 9
Workaround
keiner bekannt / siehe Local-Fix
Bug-Verfolgung
Vorgänger  : APAR is sysrouted TO one or more of the following: IC80105 
Nachfolger : 
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
30.11.2011
12.03.2012
12.03.2012
Problem behoben ab folgender Versionen (IBM BugInfos)
9.5.FP9
Problem behoben lt. FixList in der Version
9.5.0.9 FixList