|
Problem IC77516
|
Status: Geschlossen |
HUGE LATCH CONTENTION ON DBLATCH DURING HEAVY CONNECT OR DISCONNECT |
| Produkt: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problembeschreibung: |
In an environment that involving lots of connects, disconnects
and reconnects connections may experience a slowdown due to
latch contention on the dblatch. |
| Problem-Zusammenfassung: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* During connect and disconnect processing the dblatch must be *
* acquired at various times to serialize access to data. In *
* Two places (in sqeApplication::AppStopUsing when it checks *
* the db state and in *
* sqeLocalDatabase::ShouldWeStartBackgroundAgents when it *
* checks the dbstate) it has been determined that these checks *
* can be made without acquiring the dblatch. These changes *
* result in less contention on the dblatch and so improves *
* performance. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Version 9.7 Fix Pack 5 *
**************************************************************** |
| Local-Fix: |
|
| 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 |
Problem was first fixed in Version 9.7 Fix Pack 5 |
| Workaround |
keiner bekannt / siehe Local-Fix |
| Weitere Daten |
Datum - Problem gemeldet :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
| 13.07.2011
21.12.2011
21.12.2011 |
| Problem behoben ab folgender Versionen (IBM BugInfos) |
9.7.FP5
|
| Problem behoben lt. FixList in der Version |
| 9.7.0.5
|
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