|
Problem IC99538
|
Status: Closed |
ALTER TABLESPACE PREFETCH SIZE ON TABLEPSAPCES WITH MANY OBJECTS FLOODS CATALOG CACHE |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
ALTER TABLEPSACE PREFETCH SIZE on tablespaces with many objects
will flood the CATALOG CACHE with all the objects from the
modified tablespace. Symptoms are running out of CATALOG CACHE
memory and massive performance problems for all applications,
bringing the database to a hang state. The ALTER TABLESPACE
command will run for a very long time. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 10.5 Fix Pack 4. *
**************************************************************** |
| Local Fix: |
Set CATALOGCACHE_SZ to a much higher value temporarily. |
| available fix packs: |
DB2 Cancun Release 10.5.0.4 (also known as Fix Pack 4) for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 9 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 10.5 Fix Pack 4. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 21.02.2014
06.11.2014
06.11.2014 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.5.0.4
|
 |
