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DB2 - Problem description

Problem IC74799 Status: Closed

DB2 DESIGN ADVISOR (db2advis) MAY NOT PROVIDE CONSISTENT RECOMMENDATIONS
FOR THE SAME WORKLOAD

product:
DB2 FOR LUW / DB2FORLUW / 910 - DB2
Problem description:
The DB2 Design Advisor (db2advis) may not provide consistent 
recommendations for the same workload on multiple runs. 
 
That is, when the exact same options or command-line parameters 
and values are supplied to db2advis at 2 separate invocations, 
and the exact same input workload is used, one invocation may 
give different recommendations than the other. 
 
This can occur if the input workload for db2advis is small and 
the total number of recommendation candidates generated is also 
small. The candidates can be of all types, i.e., 
index, MQT (Materialized Query Table), MDC (Multi-dimensional 
Clustering) and DPF (Data Partitioning Feature).
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description.                                       * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 9.1 Fix Pack 11 or later.             * 
****************************************************************
Local Fix:
None available.
available fix packs:
DB2 Version 9.1 Fix Pack 11  for Linux, UNIX and Windows
DB2 Version 9.1 Fix Pack 12  for Linux, UNIX and Windows

Solution
First fixed in DB2 Version 9.1 Fix Pack 11.
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC75149 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
02.03.2011
07.12.2011
07.12.2011
Problem solved at the following versions (IBM BugInfos)
9.1.FP11
Problem solved according to the fixlist(s) of the following version(s)
9.1.0.11 FixList
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